Avisos do compilador por versão do compilador

O compilador pode suprimir avisos que foram introduzidos após uma versão especificada usando a opção /Wv do compilador. Essa opção é útil para gerenciar seu processo de build quando você introduz uma nova versão do conjunto de ferramentas e deseja suprimir temporariamente novos avisos. Essa opção suprime apenas avisos, não novas mensagens de erro. Não suprima todos os novos avisos de forma permanente! Recomendamos que você sempre compile no nível de aviso regular mais alto, /W4, e remova a opção /Wv de seu build assim que seja possível.

Essas versões do compilador introduziram novos avisos:

Product	Número da versão do compilador
Visual Studio 2002	13.00.9466
Visual Studio 2003	13.10.3077
Visual Studio 2005	14.00.50727.762
Visual Studio 2008	15.00.21022.08
Visual Studio 2010	16.00.40219.01
Visual Studio 2012	17.00.51106.1
Visual Studio 2013	18.00.21005.1
Visual Studio 2015 RTM	19.00.23026.0
Visual Studio 2015 Atualização 1	19.00.23506.0
Atualização 2 do Visual Studio 2015	19.00.23918.0
Visual Studio 2015 Atualização 3	19.00.24215.1
Visual Studio 2017 RTM	19.10.25017.0
Visual Studio 2017 versão 15.3	19.11.25506.0
Visual Studio 2017 versão 15.5	19.12.25830.0
Visual Studio 2017 versão 15.6	19.13.26128.0
Visual Studio 2017 versão 15.7	19.14.26428.0
Visual Studio 2017 versão 15.8	19.15.26726.0
Visual Studio 2017 versão 15.9	19.16.26926.0
Visual Studio 2019 RTM	19.20.27004.0
Visual Studio 2019 versão 16.1	19.21.27702.0
Visual Studio 2019 versão 16.2	19.22.27905.0
Visual Studio 2019 versão 16.3	19.23.28105.0
Visual Studio 2019 versão 16.4	19.24.28314.0
Visual Studio 2019 versão 16.5	19.25.28610.0
Visual Studio 2019 versão 16.6	19.26.28805.0
Visual Studio 2019 versão 16.7	19.27.29112.0
Visual Studio 2019 versão 16.8	19.28.29333.0
Visual Studio 2019 versão 16.9	19.28.29700.0
Visual Studio 2019 versão 16.10	19.29.30000.0
Visual Studio 2019 versão 16.11	19.29.30100.0
Visual Studio 2022 versão 17.0 RTW	19.30
Visual Studio 2022 versão 17.1	19.31
Visual Studio 2022 versão 17.2	19.32
Visual Studio 2022 versão 17.3	19.33
Visual Studio 2022 versão 17.4	19.34
Visual Studio 2022 versão 17.5	19.35
Visual Studio 2022 versão 17.6	19.36
Visual Studio 2022 versão 17.7	19.37
Visual Studio 2022 versão 17.8	19.38
Visual Studio 2022, Versão 17.9	19.39
Visual Studio 2022 versão 17.10	19,40

Você pode especificar apenas o número principal, os números principal e secundário ou os números principal, secundário e de build para a opção /Wv. O compilador relata todos os avisos que correspondem a versões que começam com o número especificado. Ele suprime todos os avisos para versões maiores que o número especificado. Por exemplo, /Wv:17 relata avisos introduzidos em qualquer versão do Visual Studio 2012 ou anterior e suprime avisos introduzidos por qualquer compilador do Visual Studio 2013 (versão 18) ou posterior. Para suprimir avisos introduzidos na atualização 2 do Visual Studio 2015 e posteriores, você pode usar /Wv:19.00.23506. Use /Wv:19.11 para relatar os avisos introduzidos em qualquer versão do Visual Studio antes do Visual Studio 2017 versão 15.5, mas suprimir avisos introduzidos no Visual Studio 2017 versão 15.5 e posterior.

As seções a seguir listam os avisos introduzidos por cada versão do Visual C++ que você pode suprimir usando a opção /Wv do compilador. A opção /Wv não pode suprimir avisos que não estejam listados, que são anteriores às versões especificadas do compilador.

Avisos introduzidos no Visual Studio 2022 versão 17.10 (compilador versão 19.40)

Esses avisos e todos os avisos em versões posteriores, serão suprimidos com o uso da opção do compilador /Wv:19.40.

Aviso	Mensagem
C4859	'valor' não é um argumento válido para '/presetWarn': ele deve ser um valor decimal > 0. Sinalizador de linha de comando ignorado
C4860	'nome do objeto': o compilador inicializou zero 'número' de bytes de armazenamento.
C4861	o compilador inicializou a zero 'número' de bytes de armazenamento
C5273	alteração de comportamento: _Alignas não é mais ignorado no tipo anônimo (os membros promovidos serão alinhados)
C5274	alteração de comportamento: _Alignas não se aplica mais ao tipo 'tipo' (aplica-se apenas a objetos de dados declarados)
C5275	Assembly de fachada 'nome' está sendo importado em '/clr'; opção '/clr:netcore' ausente?
C5304	Uma declaração designada pela declaração de uso 'nome1' exportada deste módulo tem vinculação interna e o uso desse nome fora do módulo é mal-formado; considere declarar 'nome2' 'inline' para usá-lo fora deste módulo
C5305	'nome': uma declaração de instanciação explícita que segue uma definição de instanciação explícita é ignorada

Avisos introduzidos no Visual Studio 2022 versão 17.9 (compilador versão 19.39)

Esses avisos e todos os avisos em versões posteriores, serão suprimidos com o uso da opção do compilador /Wv:19.39.

Aviso	Mensagem
C4975	modopt '[modificador]' foi ignorado para o parâmetro formal 'parâmetro'
C5272	gerar um objeto de tipo não copiável 'tipo' não é o padrão. Se uma cópia for necessária no runtime, ela será feita como se fosse por memcpy.

Avisos introduzidos no Visual Studio 2022 versão 17.8 (compilador versão 19.38)

Esses avisos e todos os avisos em versões posteriores, serão suprimidos com o uso da opção do compilador /Wv:19.38.

Aviso	Mensagem
C5109	O uso de __VA_OPT__ na macro requer '/Zc:preprocessor'
C5110	__VA_OPT__ é uma extensão anterior ao C++20 ou C23
C5271	O assembly importado anteriormente 'assembly1' tem o mesmo nome do assembly 'assembly2' que está sendo importado. Isso é intencional?
C5303	A função marcada com [[msvc::intrinsic]] não resultou em uma conversão sem operações.

Avisos introduzidos no Visual Studio 2022 versão 17.7 (compilador versão 19.37)

Esses avisos e todos os avisos em versões posteriores, serão suprimidos com o uso da opção do compilador /Wv:19.36.

Aviso	Mensagem
C4907	Não é possível especificar várias convenções de chamada; a última dada será usada
C5267	a definição implícita do construtor de cópia/operador de atribuição para 'tipo' foi preterida porque ele possui um operador de atribuição/construtor de cópia fornecido pelo usuário.
C5268	Falha ao alocar a memória no endereço fixo 0xendereço. Use /Yb para especificar uma base de endereços específica se forem necessários arquivos .pch idênticos em bits.
C5269	Falha ao alocar a memória PCH no endereço fixo 0xendereço. Use /Ym para especificar uma base de endereços específica se forem necessários arquivos .pch idênticos em bits.
C5270	'valor' não é permitido para a opção 'nome do parâmetro'; os valores permitidos são: lista de valores

Avisos introduzidos no Visual Studio 2022 versão 17.6 (compilador versão 19.36)

Esses avisos e todos os avisos em versões posteriores, serão suprimidos com o uso da opção do compilador /Wv:19.35.

Aviso	Mensagem
C5266	O qualificador 'const' no tipo de retorno não tem efeito

Avisos introduzidos no Visual Studio 2022 versão 17.5 (compilador versão 19.35)

Esses avisos e todos os avisos em versões posteriores, serão suprimidos com o uso da opção do compilador /Wv:19.34.

Aviso	Mensagem
C5082	O segundo argumento de 'va_start' não é o último parâmetro nomeado
C5265	não é possível abrir o caminho 'caminho' da pesquisa

Avisos introduzidos no Visual Studio 2022 versão 17.4 (compilador versão 19.34)

Esses avisos e todos os avisos em versões posteriores, serão suprimidos com o uso da opção do compilador /Wv:19.33.

Aviso	Mensagem
C5260	A variável constante 'nome-da-variável' tem ligação interna em um contexto de arquivo de cabeçalho incluído, mas ligação externa em um contexto de unidade de cabeçalho importada; considere declará-la 'inline' também se ela for compartilhada entre unidades de tradução, ou 'static' para expressar a intenção de usá-la localmente nesta unidade de tradução.
C5261	nenhum tipo inteiro pode representar todos os valores de enumerador na enumeração 'nome_da_enumeração'
C5262	aqui ocorre um fall-through implícito; você está perdendo uma declaração break? Use [[fallthrough]] quando uma instrução break for intencionalmente omitida entre os casos
C5263	Chamar 'std::move' em um objeto temporário impede a elisão de cópia
C5264	'nome_da_variável': a variável 'const' não é usada

Avisos introduzidos no Visual Studio 2022 versão 17.3 (versão 19.33 do compilador)

Esses avisos e todos os avisos em versões posteriores, serão suprimidos com o uso da opção do compilador /Wv:19.32.

Aviso	Mensagem
C5259	'specialized-type': especialização explícita requer 'modelo <>'

Avisos introduzidos no Visual Studio 2022 versão 17.2 (versão 19.32 do compilador)

Esses avisos e todos os avisos em versões posteriores, serão suprimidos com o uso da opção do compilador /Wv:19.31.

Aviso	Mensagem
C4983	'/analyze:sarif:hashname' ignorado porque o argumento para '/analyze:log' é um único arquivo em vez de um diretório
C5081	O hotpatch seguro não é suportado com /GENPROFILE, /FASTGENPROFILE ou /LTCG:PGI, desativando o hotpatch seguro.
C5255	caractere bidirecional não terminado encontrado: 'U+XXXX'
C5256	'enumeração':uma declaração não definidora de uma enumeração com um tipo subjacente fixo só é permitida como uma declaração autônoma
C5257	'enumeração': enumeração foi declarada anteriormente sem um tipo subjacente fixo
C5258	A captura explícita de 'símbolo' não é necessária para esse uso
C5300	'#pragma omp atomic': o operando esquerdo de operador deve corresponder ao lado esquerdo da expressão de atribuição
C5301	'#pragma omp for': 'índice-do-loop' aumenta enquanto a condição do loop usa 'comparação'; loop não terminal?
C5302	'#pragma omp for': 'índice-do-loop' diminui enquanto a condição do loop usa 'comparação'; loop não terminal?

Avisos introduzidos no Visual Studio 2022 versão 17.1 (versão 19.31 do compilador)

Esses avisos e todos os avisos em versões posteriores, serão suprimidos com o uso da opção do compilador /Wv:19.30.

Aviso	Mensagem
C5251	nome-do-segmento alterado após incluir cabeçalho
C5253	um lambda não local não pode ter um padrão de captura
C5254	o recurso de linguagem 'terse static assert' requer o sinalizador do compilador '/std:c++17'

Avisos introduzidos no Visual Studio 2022 versão 17.0 (versão 19.30 do compilador)

Esses avisos e todos os avisos em versões posteriores, serão suprimidos com o uso da opção do compilador /Wv:19.29.

Aviso	Mensagem
C5244	'#include <filename>' no âmbito do módulo 'module-name-1' parece errôneo. Considere mover essa diretiva antes da declaração do módulo ou substitua a inclusão textual por 'import <filename>;'.
C5245	'function': a função não referenciada com vinculação interna foi removida
C5246	'member': a inicialização de um subobjeto deve ser colocada entre chaves
C5249	'bitfield' do tipo 'enumeration_name' nomeou enumeradores com valores que não podem ser representados na largura de campo de bit fornecida de 'bitfield_width'.
C5250	'function_name': função intrínseca não declarada.
C5252	Vários tipos diferentes resultaram no mesmo hash de tipo XFG valor-do-hash; o PDB só registrará informações para um deles

Avisos introduzidos no Visual Studio 2019 versão 16.11 (versão 19.29.30100.0 do compilador)

Esses avisos e todos os avisos em versões posteriores, serão suprimidos com o uso da opção do compilador /Wv:19.29.30099.

Aviso	Mensagem
C5247	A seção 'section-name' é reservada para inicialização dinâmica C++. A criação manual da seção interferirá na inicialização dinâmica do C++ e pode levar a um comportamento indefinido
C5248	A seção 'section-name' é reservada para inicialização dinâmica C++. As variáveis colocadas manualmente na seção podem ser otimizadas e sua ordem em relação aos inicializadores dinâmicos gerados pelo compilador não é especificada

Avisos introduzidos no Visual Studio 2019 versão 16.10 (versão 19.29.30000.0 do compilador)

Esses avisos e todos os avisos em versões posteriores, serão suprimidos com o uso da opção do compilador /Wv:19.28.

Aviso	Mensagem
C5233	a captura de lambda explícita 'identifier' não é usada
C5234	erro do sistema de arquivos: 'filename' não é um nome de cabeçalho válido. Ignorando
C5235	Erro de análise de JSON: problema; ignorando 'filename'
C5236	JSON malformado: problema; ignorando 'filename'
C5237	não é possível resolver a entrada da unidade de cabeçalho 'string' para um arquivo de cabeçalho em 'filename'; ignorando a entrada
C5238	erro do sistema de arquivos: não é possível abrir 'filename' para leitura; ignorando
C5239	'Symbol': função potencialmente lançada chamada de uma função declarada __declspec(nothrow). O comportamento indefinido poderá ocorrer se for lançada uma exceção.
C5240	'attribute-string': o atributo foi ignorado nesta posição sintática
C5241	O uso de '/exportHeader' para pesquisar nome-do-cabeçalho foi preterido; dê preferência para '/headerName:arg-1 arg-2=filename'
C5242	erro de sintaxe no pragma 'pragma-name'
C5243	'Type-name': usar uma classe 'symbol' incompleta pode causar uma possível violação da regra de definição devido à limitação de ABI

Avisos introduzidos no Visual Studio 2019 versão 16.9 (versão 19.28.29700.0 do compilador)

Esses avisos e todos os avisos em versões posteriores, serão suprimidos com o uso da opção do compilador /Wv:19.28.29699.

Aviso	Mensagem
C5232	em C++20, essa comparação chama 'identifier' recursivamente

Avisos introduzidos no Visual Studio 2019 versão 16.8 (versão 19.28.29333.0 do compilador)

Esses avisos e todos os avisos em versões posteriores, serão suprimidos com o uso da opção do compilador /Wv:19.27.

Aviso	Mensagem
C5072	ASAN enabled without debug information emission. Enable debug info for better ASAN error reporting
C5211	'keyword-1' has been deprecated; prefer using 'keyword-2' instead
C5222	'attribute-name': all unscoped attribute names are reserved for future standardization
C5223	all attribute names in the attribute namespace 'msvc' are reserved for the implementation
C5224	all attribute names in the attribute namespace 'a-namespace' are reserved for future standardization
C5225	'symbol': exported inline function defined in a private module fragment is a non-standard extension
C5226	'symbol': exported template defined in private module fragment has no reachable instantiation
C5227	nonstandard extension, resolved 'symbol' to 'instance' which is not visible with /permissive- on.
C5228	nonstandard extension, 'identifier' resolved to a member of a dependent base. This lookup is not allowed under /permissive-.
C5229	nonstandard extension, the hidden friend function 'function-name' was found by name lookup which isn't allowed under /permissive-.
C5230	nonstandard extension, 'identifier' was resolved to 'symbol' under /permissive. Under /permissive- it would resolve to 'other-symbol'.
C5231	the expression 'co_await promise.final_suspend()' must be non-throwing)

Avisos introduzidos no Visual Studio 2019 versão 16.7 (versão 19.27.29112.0 do compilador)

Esses avisos e todos os avisos em versões posteriores, serão suprimidos com o uso da opção do compilador /Wv:19.26.

Aviso	Mensagem
C5207	the simple requirement asserts the validity of expression 'e->id'. Did you mean '{ e } -> id'? You can suppress the warning using '{ e->id }'
C5209	the C++20 syntax for an init-capture has changed to '& ...opt identifier initializer'
C5210	'name' is not a valid header unit reference; ignoring
C5212	'name' is not a valid named reference; treating as reference to file
C5213	'name' named reference is treated as a named partition but the name is not specified; treating as reference to file
C5214	applying 'modifier' to an operand with a volatile qualified type is deprecated in C++20
C5215	'name' a function parameter with a volatile qualified type is deprecated in C++20
C5216	'name' a volatile qualified return type is deprecated in C++20
C5217	a structured binding declaration that includes volatile is deprecated in C++20
C5218	destroying delete may not behave as intended when non-conforming switches '/Zc:sizedDealloc-' or '/Zc:alignedNew-' are used
C5219	implicit conversion from 'type-1' to 'type-2', possible loss of data
C5220	'name': a non-static data member with a volatile qualified type no longer implies%$N that compiler generated copy/move constructors and copy/move assignment operators are not trivial
C5221	xfg::rename is deprecated.

Avisos introduzidos no Visual Studio 2019 versão 16.6 (versão 19.26.28805.0 do compilador)

Esses avisos e todos os avisos em versões posteriores, serão suprimidos com o uso da opção do compilador /Wv:19.25.

Aviso	Mensagem
C5207	the simple requirement asserts the validity of expression 'e->id'. Did you mean '{ e } -> id'? You can suppress the warning using '{ e->id }'
C5208	unnamed class used in typedef name cannot declare members other than non-static data members, member enumerations, or member classes

Avisos introduzidos no Visual Studio 2019 versão 16.5 (versão 19.25.28610.0 do compilador)

Esses avisos e todos os avisos em versões posteriores, serão suprimidos com o uso da opção do compilador /Wv:19.24.

Aviso	Mensagem
C5061	the use of a comma operator as a subscript expression has been deprecated
C5062	enum direct list initialization between 'type-1' and 'type-2' is no longer supported
C5063	'std::is_constant_evaluated' always evaluates to true in manifestly constant-evaluated expressions
C5108	__VA_OPT__ is reserved for use in variadic macros
C5204	'type-name': class has virtual functions, but its trivial destructor is not virtual; instances of objects derived from this class may not be destructed correctly
C5205	delete of an abstract class 'type-name' that has a non-virtual destructor results in undefined behavior
C5206	deduced return types for coroutines is a non-standard extension

Avisos introduzidos no Visual Studio 2019 versão 16.4 (versão 19.24.28314.0 do compilador)

Esses avisos e todos os avisos em versões posteriores, serão suprimidos com o uso da opção do compilador /Wv:19.23.

Aviso	Mensagem
C5200	feature 'feature-name' requires compiler flag 'option-name'
C5201	a module declaration can appear only at the start of a translation unit unless a global module fragment is used
C5202	a global module fragment can only contain preprocessor directives
C5203	a parenthesized declarator name after 'explicit' will be considered an explicit-specifier in C++20

Avisos introduzidos no Visual Studio 2019 versão 16.3 (versão 19.23.28105.0 do compilador)

Esses avisos e todos os avisos em versões posteriores, serão suprimidos com o uso da opção do compilador /Wv:19.22.

Aviso	Mensagem
C4856	'value' is not a valid argument for '/d1initAll:FillPattern' (value must be between 0 and 255). Command-line flag ignored
C4857	C++/CLI mode does not support C++ versions newer than C++17; setting language to /std:c++17

Avisos introduzidos no Visual Studio 2019 versão 16.2 (versão 19.22.27905.0 do compilador)

Esses avisos e todos os avisos em versões posteriores, serão suprimidos com o uso da opção do compilador /Wv:19.21.

Aviso	Mensagem
C4855	implicit capture of 'this' via '[=]' is deprecated in 'version'
C5054	operator 'operator-name': deprecated between enumerations of different types
C5055	operator 'operator-name': deprecated between enumerations and floating-point types
C5056	operator 'operator-name': deprecated for array types
C5057	header unit reference to 'name' already exists. Ignoring header unit 'header-name'
C5058	file system error: cannot find header file 'file-name' for header unit 'unit-name'
C5059	runtime checks and address sanitizer is not currently supported - disabling runtime checks
C5060	/Qpar and address sanitizer not currently supported - disabling auto-parallelization

Avisos introduzidos no Visual Studio 2019 versão 16.1 (versão 19.21.27702.0 do compilador)

Esses avisos e todos os avisos em versões posteriores, serão suprimidos com o uso da opção do compilador /Wv:19.20.

Aviso	Mensagem
C5052	Keyword 'keyword-name' was introduced in C++<version> and requires use of the 'option-name' command-line option
C5053	support for 'explicit(<expr>)' in C++17 and earlier is a vendor extension

Avisos introduzidos no Visual Studio 2019 RTW (versão 19.20.27004.0 do compilador)

Esses avisos e todos os avisos em versões posteriores, serão suprimidos com o uso da opção do compilador /Wv:19.15.

Aviso	Mensagem
C4848	support for standard attribute 'no_unique_address' in C++17 and earlier is a vendor extension
C4854	binding dereferenced null pointer to reference has undefined behavior
C5051	attribute 'attribute-name' requires at least 'standard-level'; ignored

Avisos introduzidos no Visual Studio 2017 versão 15.8 (versão 19.15.26726.0 do compilador)

Esses avisos e todos os avisos em versões posteriores, serão suprimidos com o uso da opção do compilador /Wv:19.14.

Aviso	Mensagem
C4643	Forward declaring 'identifier' in namespace std is not permitted by the C++ Standard.
C4644	usage of the macro-based offsetof pattern in constant expressions is non-standard; use offsetof defined in the C++ standard library instead
C4845	'__declspec(no_init_all)' is ignored if '/d1initall[0|1|2|3]' was not specified on the command line
C4846	'value' is not a valid argument for '/d1initall': command-line flag ignored
C4847	'__declspec(no_init_all)' can only be applied to a function, a class type, or a local variable: ignored
C4866	compiler may not enforce left-to-right evaluation order for call to 'function'
C5046	'function': Symbol involving type with internal linkage not defined
C5047	use of nonstandard __if_exists with modules is not supported
C5048	Use of macro 'macroname' may result in non-deterministic output
C5049	'string': Embedding a full path may result in machine-dependent output
C5050	Possible incompatible environment while importing module 'module_name': issue
C5100	__VA_ARGS__ is reserved for use in variadic macros
C5101	use of preprocessor directive in function-like macro argument list is undefined behavior
C5102	ignoring invalid command-line macro definition 'value'
C5103	pasting 'token1' and 'token2' does not result in a valid preprocessing token
C5104	found 'string1#string2' in macro replacement list, did you mean 'string1""#string2'?
C5105	macro expansion producing 'defined' has undefined behavior
C5106	macro redefined with different parameter names
C5107	missing terminating 'char' character

Avisos introduzidos no Visual Studio 2017 versão 15.7 (versão 19.14.26428.0 do compilador)

Esses avisos e todos os avisos em versões posteriores, serão suprimidos com o uso da opção do compilador /Wv:19.13.

Aviso	Mensagem
C4642	'issue': could not import the constraints for generic parameter 'parameter'
C5045	Compiler will insert Spectre mitigation for memory load if /Qspectre switch specified

Avisos introduzidos no Visual Studio 2017 versão 15.6 (versão 19.13.26128.0 do compilador)

Esses avisos e todos os avisos em versões posteriores, serão suprimidos com o uso da opção do compilador /Wv:19.12.

Aviso	Mensagem
C5044	An argument to command-line option option points to a path 'path' that does not exist

Avisos introduzidos no Visual Studio 2017 versão 15.5 (versão 19.12.25830.0 do compilador)

Esses avisos e todos os avisos em versões posteriores, serão suprimidos com o uso da opção do compilador /Wv:19.11.

Aviso	Mensagem
C4843	'type1': An exception handler of reference to array or function type is unreachable, use 'type2' instead
C4844	'export module module_name;' is now the preferred syntax for declaring a module interface
C5039	'function': pointer or reference to potentially throwing function passed to extern C function under -EHc. Undefined behavior may occur if this function throws an exception.
C5040	dynamic exception specifications are valid only in C++14 and earlier; treating as noexcept(false)
C5041	'definition': out-of-line definition for constexpr static data member is not needed and is deprecated in C++17
C5042	'declaration': function declarations at block scope cannot be specified 'inline' in standard C++; remove 'inline' specifier
C5043	'specification': exception specification does not match previous declaration

Avisos introduzidos no Visual Studio 2017 versão 15.3 (versão 19.11.25506.0 do compilador)

Esses avisos e todos os avisos em versões posteriores, serão suprimidos com o uso da opção do compilador /Wv:19.10.

Aviso	Mensagem
C4597	undefined behavior: description
C4604	'type': passing argument by value across native and managed boundary requires valid copy constructor. Otherwise the runtime behavior is undefined
C4749	conditionally supported: description
C4768	__declspec attributes before linkage specification are ignored
C4834	discarding return value of function with 'nodiscard' attribute
C4841	non-standard extension used: extension
C4842	the result of 'offsetof' applied to a type using multiple inheritance is not guaranteed to be consistent between compiler releases
C4869	'nodiscard' may only be applied to classes, enumerations, and functions with non-void return type
C4984	'if constexpr' is a C++17 language extension
C5033	'*storage-class*' is no longer a supported storage class
C5034	use of intrinsic 'intrinsic' causes function function to be compiled as guest code
C5035	use of feature 'feature' causes function function to be compiled as guest code
C5036	varargs function pointer conversion when compiling with /hybrid:x86arm64 'type1' to 'type2'
C5037	'*member-function*': an out-of-line definition of a member of a class template cannot have default arguments
C5038	data member 'member1' will be initialized after data member 'member2'

Avisos introduzidos no Visual Studio 2017 RTW (versão 19.10.25017.0 do compilador)

Esses avisos e todos os avisos em versões posteriores, serão suprimidos com o uso da opção do compilador /Wv:19.00.

Aviso	Mensagem
C4468	'fallthrough': attribute must be followed by a case label or a default label
C4698	'feature' is for evaluation purposes only and is subject to change or removal in future updates.
C4839	non-standard use of class 'class' as an argument to a variadic function
C4840	non-portable use of class 'class' as an argument to a variadic function

Avisos introduzidos no Visual Studio 2015 Atualização 3 (versão 19.00.24215.1 do compilador)

Esses avisos e todos os avisos em versões posteriores, serão suprimidos com o uso da opção do compilador /Wv:19.00.23918.

Aviso	Mensagem
C4467	usage of ATL attributes is deprecated
C4596	'name': illegal qualified name in member declaration
C4598	'#include <header>': header number number in the source does not match source at that position
C4599	'argument': source argument number number does not match source

Avisos introduzidos no Visual Studio 2015 Atualização 2 (versão 19.00.23918.0 do compilador)

Esses avisos e todos os avisos em versões posteriores, serão suprimidos com o uso da opção do compilador /Wv:19.00.23506.

Aviso	Mensagem
C4466	Could not perform coroutine heap elision
C4595	'class': non-member operator new or delete functions may not be declared inline
C4828	The file contains a character starting at offset 0xvalue that is illegal in the current source character set (codepage number).
C4868	compiler may not enforce left-to-right evaluation order in braced initializer list

Avisos introduzidos no Visual Studio 2015 Atualização 1 (versão 19.00.23506.0 do compilador)

Esses avisos e todos os avisos em versões posteriores, serão suprimidos com o uso da opção do compilador /Wv:19.00.23026.

Aviso	Mensagem
C4426	optimization flags changed after including header, may be due to #pragma optimize()
C4654	Code placed before include of precompiled header line will be ignored. Add code to precompiled header.
C5031	#pragma warning(pop): likely mismatch, popping warning state pushed in different file
C5032	detected #pragma warning(push) with no corresponding #pragma warning(pop)

Avisos introduzidos no Visual Studio 2015 RTW (versão 19.00.23026.0 do compilador)

Esses avisos e todos os avisos em versões posteriores, serão suprimidos com o uso da opção do compilador /Wv:18.

Aviso	Mensagem
C4427	'error': overflow in constant division, undefined behavior
C4438	'type': cannot be called safely in /await:clrcompat mode. If 'type' calls into the CLR it may result in CLR head corruption
C4455	'operator name': literal suffix identifiers that do not start with an underscore are reserved
C4456	declaration of 'name' hides previous local declaration
C4457	declaration of 'name' hides function parameter
C4458	declaration of 'name' hides class member
C4459	declaration of 'name' hides global declaration
C4462	'type' : cannot determine the GUID of the type. Program may fail at runtime.
C4463	overflow; assigning value to bit-field that can only hold values from value to value
C4473	'function' : not enough arguments passed for format string
C4474	'function' : too many arguments passed for format string
C4475	'function' : length modifier 'modifier' cannot be used with type field character 'character' in format specifier
C4476	'function' : unknown type field character 'character' in format specifier
C4477	'function' : format string 'string' requires an argument of type 'type', but variadic argument number has type 'type'
C4478	'function' : positional and non-positional placeholders cannot be mixed in the same format string
C4494	'type' : Ignoring __declspec(allocator) because the function return type is not a pointer or reference
C4495	nonstandard extension '__super' used: replace with explicit base class name
C4496	nonstandard extension 'for each' used: replace with ranged-for statement
C4497	nonstandard extension 'sealed' used: replace with 'final'
C4498	nonstandard extension used: 'extension'
C4499	'specialization': an explicit specialization cannot have a storage class (ignored)
C4576	a parenthesized type followed by an initializer list is a non-standard explicit type conversion syntax
C4577	'noexcept' used with no exception handling mode specified; termination on exception is not guaranteed. Specify /EHsc
C4578	'abs': conversion from 'type' to 'type', possible loss of data (Did you mean to call 'name' or to #include <cmath>?)
C4582	'type': constructor is not implicitly called
C4583	'type': destructor is not implicitly called
C4587	'type': behavior change: constructor is no longer implicitly called
C4588	'type': behavior change: destructor is no longer implicitly called
C4589	Constructor of abstract class 'type' ignores initializer for virtual base class 'type'
C4591	'constexpr' call-depth limit of number exceeded (/constexpr:depth<NUMBER>)
C4592	'type': symbol will be dynamically initialized (implementation limitation)
C4593	'type': 'constexpr' call evaluation step limit of value exceeded; use /constexpr:steps<NUMBER> to increase the limit
C4647	behavior change: __is_pod(type) has different value in previous versions
C4648	standard attribute 'carries_dependency' is ignored
C4649	attributes are ignored in this context
C4753	Cannot find bounds for pointer; MPX intrinsic function ignored
C4771	Bounds must be created using a simple pointer; MPX intrinsic function ignored
C4774	'description' : format string expected in argument number is not a string literal
C4775	nonstandard extension used in format string 'string' of function 'function'
C4776	'%character' is not allowed in the format string of function 'function'
C4777	'description' : format string 'string' requires an argument of type 'type', but variadic argument number has type 'type'
C4778	'description' : unterminated format string 'string'
C4838	conversion from 'type' to 'type' requires a narrowing conversion
C5022	'type': multiple move constructors specified
C5023	'type': multiple move assignment operators specified
C5024	'declaration': move constructor was implicitly defined as deleted
C5025	'declaration': move assignment operator was implicitly defined as deleted
C5026	'type': move constructor was implicitly defined as deleted
C5027	'type': move assignment operator was implicitly defined as deleted
C5028	'name': Alignment specified in prior declaration (number) not specified in definition
C5029	nonstandard extension used: alignment attributes in C++ apply to variables, data members and tag types only
C5030	attribute 'attribute' is not recognized

Avisos introduzidos no Visual Studio 2013 (versão 18.00.21005.1 do compilador)

Esses avisos e todos os avisos em versões posteriores, serão suprimidos com o uso da opção do compilador /Wv:17.

Aviso	Mensagem
C4301	'type': overriding virtual function only differs from 'declaration' by const/volatile qualifier
C4316	'type': object allocated on the heap may not be aligned number
C4380	'type': A default constructor cannot be deprecated
C4388	'token': signed/unsigned mismatch
C4423	'std::bad_alloc': will be caught by class ('type') on line number
C4424	catch for 'type' preceded by 'type' on line number; unpredictable behavior may result if 'std::bad_alloc' is thrown
C4425	A SAL annotation cannot be applied to '...'
C4464	relative include path contains '..'
C4575	'__vectorcall' incompatible with the '/clr' option: converting to '__stdcall'
C4609	'type' derives from default interface 'type' on type 'type'. Use a different default interface for 'type', or break the base/derived relationship.
C4754	Conversion rules for arithmetic operations in the comparison at description(number) mean that one branch cannot be executed. Cast 'type' to 'type' (or similar type of number bytes).
C4755	Conversion rules for arithmetic operations in the comparison at description(number) mean that one branch cannot be executed in an inlined function. Cast 'type' to 'type' (or similar type of number bytes).
C4767	section name 'name' is longer than 8 characters and will be truncated by the linker
C4770	partially validated enum 'name' used as index
C4827	A public 'ToString' method with 0 parameters should be marked as virtual and override
C4882	passing functors with non-const call operators to concurrency::parallel_for_each is deprecated
C4973	'type': marked as deprecated
C4974	'type': marked as deprecated
C4981	Warbird: function 'declaration' marked as __forceinline not inlined because it contains exception semantics
C4990	Warbird: message
C4991	Warbird: function 'declaration' marked as __forceinline not inlined because protection level of inlinee is greater than the parent
C4992	Warbird: function 'declaration' marked as __forceinline not inlined because it contains inline assembly which cannot be protected

Avisos introduzidos no Visual Studio 2012 (versão 17.00.51106.1 do compilador)

Esses avisos e todos os avisos em versões posteriores, serão suprimidos com o uso da opção do compilador /Wv:16.

Aviso	Mensagem
C4330	attribute 'attribute' for section 'section' ignored
C4415	duplicate __declspec(code_seg('name'))
C4416	__declspec(code_seg(...)) contains empty string: ignored
C4417	an explicit template instantiation cannot have __declspec(code_seg(...)): ignored
C4418	__declspec(code_seg(...)) ignored on an enum
C4419	'name' has no effect when applied to private ref class 'type'.
C4435	'type': Object layout under /vd2 will change due to virtual base 'type'
C4436	dynamic_cast from virtual base 'type' to 'type' in constructor or destructor could fail with partially-constructed object
C4437	dynamic_cast from virtual base 'type' to 'type' could fail in some contexts
C4443	expected pragma parameter to be '0', '1', or '2'
C4446	'type': cannot map member 'name' into this type, due to conflict with the type name. The method was renamed to 'name'
C4447	'main' signature found without threading model. Consider using 'int main(Platform::Array<Platform::String^>^ args)'.
C4448	'type' does not have a default interface specified in metadata. Picking: 'type', which may fail at runtime.
C4449	'type' an unsealed type should be marked as '[WebHostHidden]'
C4450	'type' should be marked as '[WebHostHidden]' because it derives from 'type'
C4451	'type': Usage of ref class 'type' inside this context can lead to invalid marshaling of object across contexts
C4452	'type': public type cannot be at global scope. It must be in a namespace that is a child of the name of the output .winmd file.
C4453	'type': A '[WebHostHidden]' type should not be used on the published surface of a public type that is not '[WebHostHidden]'
C4454	'type' is overloaded by more than the number of input parameters without having [DefaultOverload] specified. Picking 'declaration' as the default overload
C4471	'name': a forward declaration of an unscoped enumeration must have an underlying type (int assumed)
C4472	'name' is a native enum: add an access specifier (private/public) to declare a managed/WinRT enum
C4492	'type': matches base ref class method 'type', but is not marked 'override'
C4493	delete expression has no effect as the destructor of 'type' does not have 'public' accessibility
C4585	'type': A WinRT 'public ref class' must either be sealed or derive from an existing unsealed class
C4586	'type': A public type cannot be declared in a top-level namespace called 'Windows'
C4695	#pragma execution_character_set: 'argument' is not a supported argument: currently only 'UTF-8' is supported
C4703	potentially uninitialized local pointer variable 'name' used
C4728	/Yl- option ignored because PCH reference is required
C4745	volatile access of 'name' cannot be honored due to its size
C4746	volatile access of 'name' is subject to /volatile:<iso | ms> setting; consider using __iso_volatile_load/store intrinsic functions
C4872	floating point division by zero detected when compiling the call graph for the concurrency::parallel_for_each at: 'description'
C4880	casting from 'type' to 'type': casting away constness from a pointer or reference may result in undefined behavior in an amp restricted function
C4881	the constructor and/or the destructor will not be invoked for tile_static variable 'type'
C4966	'description' has __code_seg annotation with unsupported segment name, annotation ignored
C4988	'type': variable declared outside class/function scope
C4989	'description': type has conflicting definitions.

Avisos introduzidos no Visual Studio 2010 (versão 16.00.40219.01 do compilador)

Esses avisos e todos os avisos em versões posteriores, serão suprimidos com o uso da opção do compilador /Wv:15.

Aviso	Mensagem
C4352	'name': intrinsic function already defined
C4573	the usage of 'type' requires the compiler to capture 'this' but the current default capture mode does not allow it
C4574	'name' is defined to be '0': did you mean to use '#if name'?
C4689	'character': unsupported character in #pragma detect_mismatch; #pragma ignored
C4751	/arch AVX flag does not apply to Intel(R) Streaming SIMD Extensions that are within inline ASM
C4752	found Intel(R) Advanced Vector Extensions; consider using the appropriate /arch AVX flag
C4837	trigraph detected: '??character' replaced by 'character'
C4986	'declaration': exception specification does not match previous declaration
C4987	nonstandard extension used: 'throw (...)'

Avisos introduzidos no Visual Studio 2008 (versão 15.00.21022.08 do compilador)

Esses avisos e todos os avisos em versões posteriores, serão suprimidos com o uso da opção do compilador /Wv:14.

Aviso	Mensagem
C4396	'type': the inline specifier cannot be used when a friend declaration refers to a specialization of a function template
C4413	'declaration': reference member is initialized to a temporary that doesn't persist after the constructor exits
C4491	'description': has an illegal IDL version format
C4603	'name': macro is not defined or definition is different after precompiled header use
C4627	'description': skipped when looking for precompiled header use
C4750	'description': function with _alloca() inlined into a loop
C4910	'type': '__declspec(dllexport)' and 'extern' are incompatible on an explicit instantiation
C4985	'declaration': attributes not present on previous declaration.

Avisos introduzidos no Visual Studio 2005 (versão 14.00.50727.762 do compilador)

Esses avisos e todos os avisos em versões posteriores, serão suprimidos com o uso da opção do compilador /Wv:13.

Aviso	Mensagem
C4272	'type': is marked __declspec(dllimport); must specify native calling convention when importing a function.
C4333	'expression': right shift by too large amount, data loss
C4334	'expression': result of 32-bit shift implicitly converted to 64 bits (was 64-bit shift intended?)
C4335	Mac file format detected: please convert the source file to either DOS or UNIX format
C4342	behavior change: 'type' called, but a member operator was called in previous versions
C4350	behavior change: 'declaration' called instead of 'declaration'
C4357	param array argument found in formal argument list for delegate 'declaration' ignored when generating 'type'
C4358	'expression': return type of combined delegates is not 'void'; returned value is undefined
C4359	'type': Alignment specifier is less than actual alignment (number), and will be ignored.
C4362	'type': alignment greater than 8 bytes is not supported by CLR
C4364	#using for assembly 'name' previously seen at description(number) without as_friend attribute; as_friend not applied
C4365	'expression': conversion from 'type' to 'type', signed/unsigned mismatch
C4366	The result of the unary 'operator' operator may be unaligned
C4367	Conversion from 'type' to 'type' may cause datatype misalignment exception
C4368	cannot define 'name' as a member of managed 'type': mixed types are not supported
C4369	'type': enumerator value 'number' cannot be represented as 'type', value is 'number'
C4374	'declaration': interface method will not be implemented by non-virtual method 'declaration'
C4375	non-public method 'declaration' does not override 'declaration'
C4376	access specifier 'specifier:' is no longer supported: please use 'specifier:' instead
C4377	native types are private by default; -d1PrivateNativeTypes is deprecated
C4378	Must obtain function pointers to run initializers; consider System::ModuleHandle::ResolveMethodHandle
C4379	Version version of the common language runtime is not supported by this compiler. Using this version may cause unexpected results
C4381	'declaration': interface method will not be implemented by non-public method 'declaration'
C4382	throwing 'type': a type with __clrcall destructor or copy constructor can only be caught in /clr:pure module
C4383	'type': the meaning of dereferencing a handle can change, when a user-defined 'operator' operator exists; write the operator as a static function to be explicit about the operand
C4384	#pragma 'directive' should only be used at global scope
C4393	'type': const has no effect on description data member; ignored
C4394	'type': per-appdomain symbol should not be marked with __declspec(value)
C4395	'type': member function will be invoked on a copy of the initonly data member 'type'
C4397	DefaultCharSetAttribute is ignored
C4398	'type': per-process global object might not work correctly with multiple appdomains; consider using __declspec(appdomain)
C4399	'type': per-process symbol should not be marked with __declspec(value) when compiled with /clr:pure
C4400	'type': const/volatile qualifiers on this type are not supported
C4412	'declaration': function signature contains type 'type'; C++ objects are unsafe to pass between pure code and mixed or native.
C4429	possible incomplete or improperly formed universal-character-name
C4430	missing type specifier - int assumed. Note: C++ does not support default-int
C4431	missing type specifier - int assumed. Note: C no longer supports default-int
C4434	a static constructor must have private accessibility; changing to private access
C4439	'type': function definition with a managed type in the signature must have a __clrcall calling convention
C4441	calling convention of 'convention' ignored; 'convention' used instead
C4445	'declaration': in a managed/WinRT type a virtual method cannot be private
C4460	CLR/WinRT operator 'type', has parameter passed by reference. CLR/WinRT operator 'operator' has different semantics from C++ operator 'operator', did you intend to pass by value?
C4461	'type': this class has a finalizer '!type' but no destructor '~type'
C4470	floating-point control pragmas ignored under /clr
C4480	nonstandard extension used: specifying underlying type for enum 'type'
C4481	nonstandard extension used: override specifier 'specifier'
C4482	nonstandard extension used: enum 'type' used in qualified name
C4483	syntax error: expected C++ keyword
C4484	'type': matches base ref class method 'type', but is not marked 'virtual', 'new' or 'override'; 'new' (and not 'virtual') is assumed
C4485	'type': matches base ref class method 'type', but is not marked 'new' or 'override'; 'new' (and 'virtual') is assumed
C4486	'type': a private virtual method of a ref class or value class should be marked 'sealed'
C4487	'type': matches inherited non-virtual method 'type' but is not explicitly marked 'new'
C4488	'type': requires 'keyword' keyword to implement the interface method 'type'
C4489	'keyword': not allowed on interface method 'name'; override specifiers are only allowed on ref class and value class methods
C4490	'keyword': incorrect use of override specifier; 'type' does not match a base ref class method
C4538	'type': const/volatile qualifiers on this type are not supported
C4559	'type': redefinition; the function gains __declspec(value)
C4565	'type': redefinition; the symbol was previously declared with __declspec(value)
C4566	character represented by universal-character-name 'character' cannot be represented in the current code page (number)
C4568	'type': no members match the signature of the explicit override
C4569	'type': no members match the signature of the explicit override
C4570	'type': is not explicitly declared as abstract but has abstract functions
C4571	Informational: catch(...) semantics changed since Visual C++ 7.1; structured exceptions (SEH) are no longer caught
C4572	[ParamArray] attribute is deprecated under /clr, use '...' instead
C4580	[attribute] is deprecated; instead specify specifiedAttribute as a base class
C4581	deprecated behavior: '"name"' replaced with 'name' to process attribute
C4606	#pragma warning: 'number' ignored; Code Analysis warnings are not associated with warning levels
C4631	MSXML or XPath unavailable, XML document comments will not be processed. description
C4632	XML document comment: description - access denied: description
C4633	XML document comment description: error: description
C4634	XML document comment description: cannot be applied: description
C4635	XML document comment description: badly-formed XML: description
C4636	XML document comment description: tag requires non-empty 'description' attribute.
C4637	XML document comment description: <include> tag discarded. description
C4638	XML document comment description: reference to unknown symbol 'description'.
C4639	MSXML error, XML document comments will not be processed. description
C4641	XML document comment has an ambiguous cross reference:
C4678	base class 'declaration' is less accessible than 'name'
C4679	'description': could not import member
C4687	'type': a sealed abstract class cannot implement an interface 'type'
C4688	'name': constraint list contains assembly private type 'declaration'
C4690	[ emitidl( pop ) ]: more pops than pushes
C4691	'type': type referenced was expected in unreferenced module 'description', type defined in current translation unit used instead
C4692	'name': signature of non-private member contains assembly private native type 'declaration'
C4693	'type': a sealed abstract class cannot have any instance members 'name'
C4694	'type': a sealed abstract class cannot have a base-class 'type'
C4720	in-line assembler reports: 'description'
C4721	'description': not available as an intrinsic
C4722	'description': destructor never returns, potential memory leak
C4726	ARM arch4/4T supports only '<cpsr_f> or <spsr_f>' with immediate value
C4727	PCH named name with same timestamp found in name and name. Using first PCH.
C4729	function too big for flow graph based warnings
C4730	'description': mixing _m64 and floating point expressions may result in incorrect code
C4731	'description': frame pointer register 'register' modified by inline assembly code
C4732	intrinsic 'intrinsic' is not supported in this architecture
C4733	Inline asm assigning to 'FS:0': handler not registered as safe handler
C4734	More than 64k line numbers in a COFF debug info section; stop emitting COFF debug line numbers for module 'module'
C4738	storing 32-bit float result in memory, possible loss of performance
C4739	reference to variable 'variable' exceeds its storage space
C4740	flow in or out of inline asm code suppresses global optimization
C4742	'variable' has different alignment in 'location' and 'location': number and number
C4743	'name' has different size in 'location' and 'location': number and number bytes
C4744	'name' has different type in 'location' and 'location': 'type' and 'type'
C4747	Calling managed 'type': Managed code may not be run under loader lock, including the DLL entrypoint and calls reached from the DLL entrypoint
C4761	integral size mismatch in argument; conversion supplied
C4764	Cannot align catch objects to greater than 16 bytes
C4788	'identifier': identifier was truncated to 'number' characters
C4789	buffer 'name' of size number bytes will be overrun; number bytes will be written starting at offset number
C4801	Return by reference is not verifiable: description
C4819	The file contains a character that cannot be represented in the current code page (number). Save the file in Unicode format to prevent data loss
C4826	Conversion from 'type' to 'type' is sign-extended. This may cause unexpected runtime behavior.
C4829	Possibly incorrect parameters to function main. Consider 'int main(Platform::Array<Platform::String^>^ argv)'
C4835	'type': the initializer for exported data will not be run until managed code is first executed in the host assembly
C4867	'type': non-standard syntax; use '&' to create a pointer to member
C4936	this __declspec is supported only when compiled with /clr or /clr:pure
C4937	'name' and 'name' are indistinguishable as arguments to 'option'
C4938	'type': Floating point reduction variable may cause inconsistent results under /fp:strict or #pragma fenv_access
C4939	#pragma vtordisp is deprecated and will be removed in a future release of Visual C++
C4947	'type': marked as obsolete
C4949	pragmas 'managed' and 'unmanaged' are meaningful only when compiled with '/clr[:option]'
C4950	'type': marked as obsolete
C4955	'description': import ignored; already imported from 'source'
C4956	'type': this type is not verifiable
C4957	'expression': explicit cast from 'type' to 'type' is not verifiable
C4958	'expression': pointer arithmetic is not verifiable
C4959	cannot define unmanaged class 'type' in /clr:safe because accessing its members yields unverifiable code
C4960	'description' is too big to be profiled
C4961	No profile data was merged into 'location', profile-guided optimizations disabled
C4962	'description': Profile-guided optimizations disabled because optimizations caused profile data to become inconsistent
C4963	'description': no profile data found; different compiler options were used in instrumented build
C4964	No optimization options were specified; profile info will not be collected
C4965	implicit box of integer 0; use nullptr or explicit cast
C4970	delegate constructor: target object ignored since 'declaration' is static
C4971	Argument order: <target object>, <target function> for delegate constructor is deprecated, use <target function>, <target object>
C4972	Directly modifying or treating the result of an unbox operation as an lvalue is unverifiable

Avisos introduzidos no Visual Studio 2003 (versão 13.10.3077 do compilador)

Esses avisos e todos os avisos em versões posteriores, serão suprimidos com o uso da opção do compilador /Wv:13.00.9466.

Aviso	Mensagem
C4343	#pragma optimize(description,off) overrides /Og option
C4344	behavior change: use of explicit template arguments results in call to 'declaration'
C4346	'type': dependent name is not a type
C4348	'declaration': redefinition of default parameter: parameter number
C4356	'type': static data member cannot be initialized via derived class
C4408	anonymous struct did not declare any data members
C4544	'declaration': default template argument ignored on this template declaration
C4545	expression before comma evaluates to a function which is missing an argument list
C4546	function call before comma missing argument list
C4547	'expression': operator before comma has no effect; expected operator with side-effect
C4548	expression before comma has no effect; expected expression with side-effect
C4549	'expression': operator before comma has no effect; did you intend 'expression'?
C4628	digraphs not supported with -Ze. Character sequence 'sequence' not interpreted as alternate token for 'token'
C4629	digraph used, character sequence 'sequence' interpreted as token 'token' (insert a space between the two characters if this is not what you intended)
C4671	'description': the copy constructor is inaccessible
C4676	'description': the destructor is inaccessible
C4677	'name': signature of non-private member contains assembly private type 'declaration'
C4686	'type': possible change in behavior, change in UDT return calling convention
C4812	obsolete declaration style: please use 'type::name' instead
C4813	'type': a friend function of a local class must have been previously declared
C4821	Unable to determine Unicode encoding type, please save the file with signature (BOM)
C4822	'type': local class member function does not have a body
C4823	'type': uses pinning pointers but unwind semantics are not enabled. Consider using /EHa
C4913	user defined binary operator ',' exists but no overload could convert all operands, default built-in binary operator ',' used
C4948	return type of 'declaration' does not match the last parameter type of the corresponding setter
C4951	'description' has been edited since profile data was collected, function profile data not used
C4952	'description': no profile data found in program database 'description'
C4953	Inlinee 'description' has been edited since profile data was collected, profile data not used
C4954	'description': not profiled (contains __int64 switch expression)

Avisos introduzidos no Visual Studio 2002 (versão 13.00.9466 do compilador)

Esses avisos e todos os avisos em versões posteriores, serão suprimidos com o uso da opção do compilador /Wv:12.

Aviso	Mensagem
C4096	'type': interface is not a COM interface; will not be emitted to IDL
C4097	expected pragma parameter to be 'restore' or 'off'
C4165	'HRESULT' is being converted to 'bool'; are you sure this is what you want?
C4183	'name': missing return type; assumed to be a member function returning 'int'
C4199	description
C4255	'name': no function prototype given: converting '()' to '(void)'
C4256	'declaration': constructor for class with virtual bases has '...'; calls may not be compatible with older versions of Visual C++
C4258	'name': definition from the for loop is ignored; the definition from the enclosing scope is used
C4263	'declaration': member function does not override any base class virtual member function
C4264	'declaration': no override available for virtual member function from base 'class'; function is hidden
C4265	'type': class has virtual functions, but destructor is not virtual instances of this class may not be destructed correctly
C4266	'declaration': no override available for virtual member function from base 'class'; function is hidden
C4267	'expression': conversion from 'size_t' to 'type', possible loss of data
C4274	#ident ignored; see documentation for #pragma comment(exestr, 'string')
C4277	imported item 'type::name' exists as both data member and function member; data member ignored
C4278	'name': identifier in type library 'description' is already a macro; use the 'rename' qualifier
C4279	'name': identifier in type library 'description' is a keyword; use the 'rename' qualifier
C4287	'expression': unsigned/negative constant mismatch
C4288	nonstandard extension used: 'name': loop control variable declared in the for-loop is used outside the for-loop scope; it conflicts with the declaration in the outer scope
C4289	nonstandard extension used: 'name': loop control variable declared in the for-loop is used outside the for-loop scope
C4293	'expression': shift count negative or too big, undefined behavior
C4295	'type': array is too small to include a terminating null character
C4296	'expression': expression is always value
C4297	'type': function assumed not to throw an exception but does
C4298	'name': identifier in type library 'description' is already a macro; renaming to '__name'
C4299	'name': identifier in type library 'description' is a keyword; renaming to '__name'
C4302	'expression': truncation from 'type' to 'type'
C4303	conversion from 'type' to 'type' is deprecated, use static_cast, __try_cast or dynamic_cast
C4314	expected pragma parameter to be '32' or '64'
C4315	'type': 'this' pointer for member 'type' may not be aligned number as expected by the constructor
C4318	passing constant zero as the length to memset
C4319	'expression': zero extending 'type' to 'type' of greater size
C4321	automatically generating an IID for interface 'type'
C4322	automatically generating a CLSID for class 'type'
C4323	re-using registered CLSID for class 'type'
C4324	'type': structure was padded due to alignment specifier
C4325	attributes for standard section 'description' ignored
C4326	return type of 'name' should be 'type' instead of 'type'
C4327	'expression': indirection alignment of LHS (number) is greater than RHS (number)
C4328	'description': indirection alignment of formal parameter number (number) is greater than the actual argument alignment (number)
C4329	alignment specifier is ignored on enum
C4336	import cross-referenced type library 'library' before importing 'description'
C4337	cross-referenced type library 'library' in 'description' is being automatically imported
C4338	#pragma description: standard section 'section' is used
C4339	'type': use of undefined type detected in CLR/WinRT meta-data - use of this type may lead to a runtime exception
C4353	nonstandard extension used: constant 0 as function expression. Use '__noop' function intrinsic instead
C4370	'declaration': layout of class has changed from a previous version of the compiler due to better packing
C4371	'declaration': layout of class may have changed from a previous version of the compiler due to better packing of member 'member'
C4373	'type': virtual function overrides 'declaration', previous versions of the compiler did not override when parameters only differed by const/volatile qualifiers
C4387	'description': was considered
C4389	'expression': signed/unsigned mismatch
C4391	'declaration': incorrect return type for intrinsic function, expected 'type'
C4392	'declaration': incorrect number of arguments for intrinsic function, expected 'number' arguments
C4407	cast between different pointer to member representations, compiler may generate incorrect code
C4420	'name': operator not available, using 'name' instead; run-time checking may be compromised
C4440	calling convention redefinition from 'description' to 'description' ignored
C4442	embedded null terminator in __annotation argument. Value will be truncated.
C4444	'name': top level '__unaligned' is not implemented in this context
C4526	'type': static member function cannot override virtual function 'declaration' override ignored, virtual function will be hidden
C4531	C++ exception handling not available on Windows CE. Use Structured Exception Handling
C4532	'description': jump out of finally block has undefined behavior during termination handling
C4533	initialization of 'declaration' is skipped by 'goto declaration'
C4534	'declaration' will not be a default constructor for class 'type' due to the default argument
C4535	calling _set_se_translator() requires /EHa
C4536	'description': type-name exceeds meta-data limit of 'number' characters
C4537	'declaration': '.' applied to non-UDT type
C4542	Skipping generation of merged injected text file, cannot write type file: 'filename': error
C4543	Injected text suppressed by attribute 'no_injected_text'
C4555	expression has no effect; expected expression with side-effect
C4557	'__assume' contains effect 'effect'
C4558	value of operand 'number' is out of range 'number - number'
C4561	'__fastcall' incompatible with the '/clr' option: converting to '__stdcall'
C4562	fully prototyped functions are required with the '/clr' option: converting '()' to '(void)'
C4564	method 'name' of class 'type' defines unsupported default parameter 'parameter'
C4584	'type': base-class 'declaration' is already a base-class of 'declaration'
C4608	Initializing multiple members of union: 'type' and 'type'
C4619	#pragma warning: there is no warning number 'number'
C4623	'type': default constructor was implicitly defined as deleted
C4624	'type': destructor was implicitly defined as deleted
C4625	'type': copy constructor was implicitly defined as deleted
C4626	'type': assignment operator was implicitly defined as deleted
C4645	function declared with 'noreturn' has a return statement
C4646	function declared with 'noreturn' has non-void return type
C4659	#pragma 'description': use of reserved segment 'name' has undefined behavior, use #pragma comment(linker, ...)
C4667	'declaration': no function template defined that matches forced instantiation
C4668	'name' is not defined as a preprocessor macro, replacing with '0' for 'value'
C4669	'expression': unsafe conversion: 'type' is a managed/WinRT type object
C4674	'name' should be declared 'static' and have exactly one parameter
C4680	'type': coclass does not specify a default interface
C4681	'type': coclass does not specify a default interface that is an event source
C4682	'type': no directional parameter attribute specified, defaulting to [in]
C4683	'declaration': event source has an 'out'-parameter; exercise caution when hooking multiple event handlers
C4684	'description': WARNING!! attribute may cause invalid code generation: use with caution
C4685	expecting '> >' found '>>' when parsing template parameters
C4700	uninitialized local variable 'name' used
C4701	potentially uninitialized local variable 'name' used
C4702	unreachable code
C4711	function 'name' selected for automatic inline expansion
C4714	function 'declaration' marked as __forceinline not inlined
C4715	'function': not all control paths return a value
C4716	'function': must return a value
C4717	'function': recursive on all control paths, function will cause runtime stack overflow
C4718	'function': recursive call has no side effects, deleting
C4719	Double constant found when Qfast specified - use 'f' as a suffix to indicate single precision
C4723	potential divide by 0
C4724	potential mod by 0
C4725	instruction may be inaccurate on some Pentiums
C4757	subscript is a large unsigned value, did you intend a negative constant?
C4772	#import referenced a type from a missing type library; 'description' used as a placeholder
C4792	function 'function' declared using sysimport and referenced from native code; import library required to link
C4794	segment of thread local storage variable 'name' changed from 'segment' to 'segment'
C4798	native code generated for p-code function 'name' with exception handler or unwind semantics
C4799	function 'name' has no EMMS instruction
C4803	'declaration': the raise method has a different storage class from that of the event, 'declaration'
C4810	value of pragma pack(show) == number
C4811	value of pragma conform(forScope, show) == value
C4820	'type': 'number' bytes padding added after type 'type'
C4905	wide string literal cast to 'type'
C4906	string literal cast to 'type'
C4912	'attribute': attribute has undefined behavior on a nested UDT
C4916	in order to have a dispid, 'type': must be introduced by an interface
C4917	'type': a GUID can only be associated with a class, interface or namespace
C4918	'character': invalid character in pragma optimization list
C4920	enum name member name=number already seen in enum name as name=number
C4921	'name': attribute value 'value' should not be multiply specified
C4925	'declaration': dispinterface method cannot be called from script
C4926	'declaration': symbol is already defined: attributes ignored
C4927	illegal conversion; more than one user-defined conversion has been implicitly applied
C4928	illegal copy-initialization; more than one user-defined conversion has been implicitly applied
C4929	'description': typelibrary contains a union; ignoring the 'embedded_idl' qualifier
C4930	'declaration': prototyped function not called (was a variable definition intended?)
C4931	we are assuming the type library was built for number-bit pointers
C4932	__identifier(description) and __identifier(description) are indistinguishable
C4934	'__delegate(multicast)' is deprecated, use '__delegate' instead
C4935	assembly access specifier modified from 'description'
C4944	'name': cannot import symbol from 'source': as 'declaration' already exists in the current scope
C4945	'name': cannot import symbol from 'source': as 'declaration' has already been imported from another assembly 'source'
C4946	reinterpret_cast used between related classes: 'declaration' and 'declaration'
C4995	'name': name was marked as #pragma deprecated
C4996	'deprecated declaration': deprecation message (or "was declared deprecated")
C4997	'type': coclass does not implement a COM interface or pseudo-interface
C4998	EXPECTATION FAILED: description(number)

Confira também

Compilador C/C++ e erros e avisos de ferramentas de compilação
Avisos do Compilador C4000 - C5999
Opção do compilador /Wv
Avisos de compilador desativados por padrão
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