Pagsasanay
Learning path
Use advance techniques in canvas apps to perform custom updates and optimization - Training
Use advance techniques in canvas apps to perform custom updates and optimization
Hindi na suportado ang browser na ito.
Mag-upgrade sa Microsoft Edge para samantalahin ang mga pinakabagong tampok, update sa seguridad, at teknikal na suporta.
Visual Studio 2022 brings many updates and fixes to the Microsoft C++ compiler and tools. The Visual Studio IDE also offers significant improvements in performance and productivity, and now runs natively as a 64-bit application.
Released February 2025
For more information about | See |
---|---|
What's new for C++ developers | What's New for C++ Developers in Visual Studio 2022 17.13 |
Standard Library (STL) merged C++26 and C++23 features, LWG issue resolutions, performance improvements, enhanced behavior, and fixed bugs | STL Changelog 17.13 |
New features in the IDE | Visual Studio 2022 version 17.13 Release Notes |
C++ language updates | MSVC compiler updates in Visual Studio 2022 17.13 |
C++ language conformance improvements | C++ Conformance improvements, behavior changes, and bug fixes in Visual Studio 2022 17.13 |
A quick highlight of some of the new features:
C++ language enhancements
Try out C++23 preview features by setting the C++ Language Standard to /std:c++23preview
. This setting enables the latest C++23 features and bug fixes. For more information, see /std (Specify Language Standard Version).
Support for C++23’s size_t
literal suffix, which helps avoid truncations or signed comparison mismatches--especially when writing loops. For example:
// Infinite loop if v.size > max unsigned int
for (auto i = 0u; i < v.size(); ++i)
{
...
}
// Fixed because of uz literal
for (auto i = 0uz; i < v.size(); ++i)
{
...
}
Support for vector lengths for code generation on x86 and x64. For more information, see /vlen.
Support for Intel Advanced Vector Extensions 10 version 1. For more information about /arch:AVX10.1
, see /arch (x64).
Standard Library enhancements
Standard library support for couroutines. In this example from P2502R2, the fib
function is a coroutine. When the co_yield
statement is executed, fib
is suspended and the value is returned to the caller. You can resume the fib
coroutine later to produce more values without requiring any manual state handling:
std::generator<int> fib()
{
auto a = 0, b = 1;
while (true)
{
co_yield std::exchange(a, std::exchange(b, a + b));
}
}
int answer_to_the_universe()
{
auto rng = fib() | std::views::drop(6) | std::views::take(3);
return std::ranges::fold_left(std::move(range), 0, std::plus{});
}
Moved system_clock
, high_resolution_clock
, and chrono_literals
from a commonly included internal header to <chrono>
. If you see compiler errors that types like system_clock
or user-defined literals like 1729ms
aren't recognized, include <chrono>
.
Improved the vectorized implementations of bitset
constructors from strings, basic_string::find_last_of()
, remove()
, ranges::remove
, and the minmax_element()
and minmax()
algorithm families.
Added vectorized implementations of:
find_end()
and ranges::find_end
for 1-byte and 2-byte elements.basic_string::find()
and basic_string::rfind()
for a substring.basic_string::rfind()
for a single character.Merged C++23 Defect Reports:
GitHub Copilot
GitHub Copilot Free is now available. Get 2,000 code completions and 50 chat requests per month at no cost.
GitHub Copilot code completions provide autocomplete suggestions inline as you code. To enhance the experience of C++ developers, GitHub Copilot includes other relevant files as context. This reduces hallucinations while offering more relevant and accurate suggestions.
You can now request a code review from GitHub Copilot from the Git Changes window:
The Git Changes window is open with the GitHub Copilot Review button highlighted.
GitHub Copilot looks for potential issues and creates comments for them:
GitHub Copilot found an issue with the line if ( is_enabled_) new_site.disable(). It says it may be a mistake and should likely be if ( is_enabled_) new_site.enable() because the intention seem to be enabling the new site if the breakpoint is enabled.
To use this feature, ensure you have the following turned on:
GitHub Copilot Edits is a new feature that can make changes across multiple files in your project. To start a new Edits session, click Create new edit session at the top of the GitHub Copilot Chat window:
Describe the changes you want to make and Copilot will suggest the relevant edits. You can preview the edits one-by-one and accept the ones you want or make corrections:
GitHub Copilot is displaying a summary of the changes it made, such as 1. Create a new subclass range_breakpoint in include/libsdb/breakpoint.hpp" and 2. Implement the range_breakpoint class in src/breakpoint.cpp. An option to accept the changes is displayed.
For more information, see Iterate across multiple files more efficiently with GitHub Copilot Edits.
CMake
Released November 2024
For more information about | See |
---|---|
What's new for C++ developers | What's New for C++ Developers in Visual Studio 2022 17.12 |
Standard Library (STL) merged C++26 and C++23 features, LWG issue resolutions, performance improvements, enhanced behavior, and fixed bugs | STL Changelog 17.12 |
New features in the Visual Studio 17.12 IDE | Visual Studio 2022 version 17.12 Release Notes |
C++ language conformance improvements in Visual Studio 2022 17.12 | C++ Conformance improvements, behavior changes, and bug fixes in Visual Studio 2022 17.12 |
A quick highlight of some of the new features:
stack
, queue
, and priority_queue
.<mdspan>
. For example: print("m[{}, {}]: '{}'; ", i, j, m[i, j])
.
The code that caused this problem is: for (auto it = h.animals_.begin(); it <= h.animals_.end(); it++).
it
variable, it tells you why it is <NULL>
:
This error is inside a function defined as int calculate_number_of_cats(const house& h). The GitHub Copilot message says: "The value of the expression it is NULL, which means that the iterator is not pointing to any valid element in the vector animals_. In the context of your program, it is supposed to iterate over the animals_ vector in the house object to count the number of cat objects. Why it is null. Based on the locals and call stack context: the house object h has an empty animals_ vector (size=0). The loop condition it <= h.animals_.end() is incorrect. It should be it != h.animals_.end()."
The Ask Copilot icon is highlighted next to an error that unique_ptr is attempting to reference a deleted function.
The Copilot message says: "The error occurs because the range-based for loop was attempting to copy std::unique_ptr objects, which is not allowed since std::unique_ptr cannot be copied. To fix this, I changed the loop to use a reference to avoid copying the std::unique_ptr objects. This way, the loop iterates over references to the std::unique_ptr objects, which is allowed."
mutex
, recursive_mutex
, and move_iterator
.Released August 2024
For more information about | See |
---|---|
What's new for C++ developers | What's New for C++ Developers in Visual Studio 2022 17.11 |
Standard Library (STL) merged C++26 and C++23 features, C++20 defect reports, LWG issue resolutions, performance improvements, enhanced behavior, and fixed bugs | STL Changelog 17.11 |
New features in the Visual Studio 17.11 IDE | Visual Studio 2022 version 17.11 Release Notes |
C++ language conformance improvements in Visual Studio 2022 17.11 | C++ Conformance improvements, behavior changes, and bug fixes in Visual Studio 2022 17.11 |
A partial list of new features:
Standard Library Enhancements
std::range_formatter
and formatters for std::pair
and std::tuple
.std::println()
with no arguments. This prints a blank line as proposed in P3142R0.replace_copy()
, replace_copy_if()
, ranges::replace_copy
, ranges::replace_copy_if
, find_first_of()
and ranges::find_first_of
, for 8-bit and 16-bit elements, mismatch()
, ranges::mismatch
, count()
ranges::count
, find()
, ranges::find
, ranges::find_last
, and ranges::iota
.Game development in C++
The Included Files view has a new column for the project. The Project column is selected and projects such as (Select All), CompilerIdC, OpenAL, common, and so on, are selected. The included files are listed by relative path and file name and grouped together.
CMake debugging
CMakeLists.txt
files in the Visual Studio debugger for CMake projects that target Linux via Windows Subsystem for Linux (WSL) or SSH. To start a CMake debugging session in Visual Studio, set a breakpoint in your CMakeLists.txt
file and then navigate to Project > Configure Cache with CMake Debugging.GitHub Copilot
The Quick Info window is shown above a function. The Tell me more link is highlighted.
The Rename dialog has a New name field with a dropdown list that shows these choices: text_color, font_color, display_color, console_color, and menu_text_color.
You need an active GitHub Copilot subscription. Right-click the variable you wish to rename, and choose Rename (Ctrl+R
, Ctrl+R
). Select the GitHub Copilot sparkle icon to generate naming suggestions.
Debugging
Diagnostics improvements
std::get<T>
on a std::tuple
that has multiple instances of T
in its template arguments. MSVC used to report:error C2338: static_assert failed: 'duplicate type T in get<T>(tuple)'
.error C2338: static_assert failed: 'get<T>(tuple<Types...>&) requires T to occur exactly once in Types.(N4971 [tuple.elemm]/5)'
std::ranges::to
is unable to construct the requested result. MSVC used to report:error C2338: static_assert failed: 'the program is ill-formed per N4950 [range.utility.conv.to]/2.3'
error C2338: static_assert failed: 'ranges::to requires the result to be constructible from the source range, either by using a suitable constructor, or by inserting each element of the range into the default-constructed object. (N4981 [range.utility.conv.to]/2.1.5)'
Released May 2024
For more information about | See |
---|---|
What's new for C++ developers | What's new for C++ Developers in Visual Studio 2022 17.10 |
Standard Library (STL) merged C++26 and C++23 features, C++20 defect reports, LWG issue resolutions, performance improvements, enhanced behavior, and fixed bugs | STL Changelog 17.10 |
New features in the Visual Studio 17.10 IDE | Visual Studio 2022 version 17.10 Release Notes |
C++ language conformance improvements in Visual Studio 2022 17.10 | C++ Conformance improvements, behavior changes, and bug fixes in Visual Studio 2022 17.10 |
A partial list of new features:
std::format
more in line with those that already exist for integers. Improved the vectorized implementations of std::min_element
, std::ranges::min
, and friends.
The mouse is hovering over the line std::filesystem::path vs_logo_path = "../images/vs_logo.png". Underneath appears a preview of the Visual Studio logo and the information that it's 251 x 500 pixels and 13.65 KB in size.
The GitHub Copilot button is shown in the top-right corner of Visual Studio. It has options to open a chat window, GitHub Copilot settings, learn more, and manage copilot subscription.
Released Feb 2024
For more information about | See |
---|---|
What's new for C++ developers | What's new for C++ Developers in Visual Studio 2022 17.9 |
Standard Library (STL) merged C++23 features, performance improvements, enhanced behavior, LWG issue resolutions, and fixed bugs | STL Changelog 17.9 |
New features in the Visual Studio 17.9 IDE | Visual Studio 2022 version 17.9 Release Notes |
C++ language conformance improvements in Visual Studio 2022 17.9 | C++ Conformance improvements, behavior changes, and bug fixes in Visual Studio 2022 |
Summary of C++ backend updates | MSVC Backend updates since Visual Studio 2022 version 17.3 |
A partial list of new features:
#include
diagnostics, which provides a detailed analysis of your #include
directives. Activate this feature by right-clicking an #include
and choosing #include directives > Turn #include directive diagnostics on. Above each #include
is the number of times your code references that #include
file. Click the reference link to navigate to where your code uses something from that header file. To view the build time of your #include
directives, run Build Insights by navigating to Build > Run Build Insights on Solution > Build.
Above the # include is a **reference** link and many of the references to this # include file (in this case 1). The build time is also listed (in this case less than 1/2 a second).
The memory layout window shows the contents of the Snake class. It shows the memory offsets of the various fields of the class such as Point classes for the location of the head and body, the score, and so on.
The CMake options dialog with the "Enable custom CMake executable" option and "CMake Executable Directory" field highlighted.
std::format
and std::span
formattable
, range_format
, format_kind
, and set_debug_format()
as part of P2286R8 Formatting Ranges
<mdspan>
per P0009R18 and subsequent wording changes that were applied to the C++23 Standard.
Also, format()
can format pointers per P2510R3.Released Nov 2023
For more information about | See |
---|---|
What's new for C++ developers | What's new for C++ Developers in Visual Studio 2022 17.8 |
Standard Library (STL) merged C++26, C++23 features, C++20 extensions, LWG issue resolutions, performance improvements, enhanced behavior, and fixed bugs | STL Changelog 17.8 |
New features in the Visual Studio 17.8 IDE | Visual Studio 2022 version 17.8 Release Notes |
C++ language conformance improvements in Visual Studio 2022 17.8 | C++ Conformance improvements, behavior changes, and bug fixes in Visual Studio 2022 |
An overview of C++ improvements in Visual Studio, VS Code, and vcpkg during 2023 | A year of C++ improvements |
A partial list of new features:
const
because they don't modify the object's state. Hover over a member function and click the light bulb icon to mark the function as const
.#include
directives for entities that are indirectly included via other headers. For more information, see Clean up C/C++ includes in Visual Studio.Released Aug 2023
For more information about | See |
---|---|
What's new for C++ developers | What's new for C++ Developers in Visual Studio 2022 17.7 |
New C++ features specific to game development | Unleashing the Power of Visual Studio 2022 for C++ Game Development |
Standard Library (STL) merged C++23 features, LWG issue resolutions, performance improvements, enhanced behavior, and fixed bugs | STL Changelog 17.7 |
New features in the Visual Studio 17.7 IDE | Visual Studio 2022 version 17.7 Release Notes |
C++ language conformance improvements in Visual Studio 2022 17.7 | C++ Conformance improvements, behavior changes, and bug fixes in Visual Studio 2022 |
A partial list of new features:
/std:clatest
for the C compiler.Released May 2023
For more information about | See |
---|---|
What's new for C++ developers | What's New for C++ Developers in Visual Studio 2022 17.6 |
Standard Library (STL) merged C++23 features, LWG issue resolutions, performance improvements, enhanced behavior, and fixed bugs | STL Changelog 17.6 |
New features in the Visual Studio 17.6 IDE | Visual Studio 2022 version 17.6 Release Notes |
C++ language conformance improvements in Visual Studio 2022 17.6 | C++ Conformance improvements, behavior changes, and bug fixes in Visual Studio 2022 |
A partial list of new features includes:
Released Feb 2023
For more information about | See |
---|---|
What's new for C++ developers | What's New for C++ Developers in Visual Studio 2022 17.5 |
Standard Library (STL) merged C++23 features, LWG issue resolutions, performance improvements, enhanced behavior, and fixed bugs | STL Changelog 17.5 |
New features in the Visual Studio 17.5 IDE | Visual Studio 2022 version 17.5 Release Notes |
A partial list of new features includes:
std::move
, std::forward
, std::move_if_noexcept
, and std::forward_like
now don't produce function calls in generated code, even in debug mode. This change avoids named casts causing unnecessary overhead in debug builds. /permissive-
(or an option that implies it, such as /std:c++20
or std:c++latest
) is required.
Added [[msvc::intrinsic]]
. You can apply this attribute to nonrecursive functions consisting of a single cast, which take only one parameter.
Added support for Linux Console in the Integrated Terminal, which allows for terminal I/O.
Added initial experimental support for C11 atomic primitives (<stdatomic.h>
). You can enable this experimental feature with the /experimental:c11atomics
option in /std:c11
mode or later.
Added a new set of experimental high-confidence checks to the Lifetime Checker for reduced noise.
A new preview feature, Remote File Explorer, lets you view the file directory on your remote machines within VS, and upload and download files to it.
Changed versioning of CMake executables shipped with Visual Studio to match Kitware versions.
Added support for Hot Reload to the CMake Project template.
Go To Definition for C++ now uses a more subtle indicator of the operation taking more time, replacing the modal dialog from previous versions.
Started rollout of an experiment providing more smart results in the C++ autocompletion and member list. This functionality was previously known as Predictive IntelliSense but now uses a new presentation method.
We now ship a native Arm64 Clang toolset with our LLVM workload, allowing native compilation on Arm64 machines.
Added localization to the Image Watch Extension (This extension is available in the Marketplace, and isn't bundled through the Visual Studio Installer).
Added support for opening a Terminal window into the currently running Developer Container.
Made several improvements to IntelliSense macro expansion. Notably, we enabled recursive expansion in more contexts, and we added options to the pop up to copy the expansion to the clipboard or expand the macro inline.
Concurrent monitoring is now supported in the Serial Monitor. Concurrent monitoring allows you to monitor multiple ports at the same time side by side. Press the plus button to open another Serial Monitor and get started.
You can now view properties from base classes modified in an Unreal Blueprint asset without leaving Visual Studio. Double-click in a Blueprint reference for a C++ class or property to open the UE Asset Inspector in Visual Studio.
Enabled running DevContainers on a remote Linux machine.
Enabled selection of multiple targets to build in the CMake Targets view.
Added support for CMakePresets.json version 5. See the CMake documentation for information of new features.
Enabled Test Explorer to build and test multiple CMake targets in parallel.
Added "Open container in terminal" option to Dev Containers.
Implemented standard library features:
Released Nov 2022
For more information about | See |
---|---|
What's new for C++ developers | What's New for C++ Developers in Visual Studio 2022 17.4 |
Standard Library (STL) merged C++23 features, LWG issue resolutions, performance improvements, enhanced behavior, and fixed bugs | STL Changelog 17.4 |
New features in the Visual Studio 17.4 IDE | Visual Studio 2022 version 17.4 Release Notes |
C++ language conformance improvements in Visual Studio 2022 17.4 | C++ Conformance improvements, behavior changes, and bug fixes in Visual Studio 2022 |
A partial list of new features in 17.4:
Improved compiler error messages to provide more correct and useful information, especially for concepts.
Added experimental MSVC option /experimental:log<directory>
to output structured SARIF diagnostics to the specified directory.
Added support for C23 attributes to IntelliSense and continued progress in C++20 modules support.
Improved indexing performance when opening a new solution. Large projects could see a 20-35% improvement from 17.3.
Improved Named Return Value Optimization (NRVO):
/Od
if the user passes the /Zc:nrvo
option, or /std:c++20
or later, or /permissive-
./Zc:nrvo-
option.Upgraded the version of LLVM shipped with Visual Studio to 15.0.1. For more information on what is available, see the LLVM and Clang release notes.
Added support to Visual Studio for vcpkg artifacts with CMake projects. For projects that include a vcpkg manifest, the environment is activated automatically on project open. Learn more about this feature in the vcpkg environment activation in Visual Studio blog post.
You can now use Dev Containers for your C++ projects. Learn more about this feature in our Dev Containers for C++ blog post.
IntelliSense now respects the order of preincluded headers when one of them is a PCH. Previously, when a PCH was used via /Yu
and force-included via /FI
, IntelliSense would always process it first, before any other headers included via /FI
. This behavior didn't match the build behavior. With this change, /FI
headers are processed in the order they're specified.
Removed internal prefixes from CTest names in Test Explorer.
Updated the version of CMake shipped with Visual Studio to version 3.24.1. For details of what is available, see the CMake release notes.
Android SDK update:
Added vectorized implementations of ranges::min_element()
, ranges::max_element()
, and ranges::minmax_element()
We continue to track the latest developments in C++ standardization. Support for these C++23 features is available by including /std:c++latest
in your compiler options:
P2302R4 ranges::contains
, ranges::contains_subrange
P2499R0 string_view
Range Constructor Should Be explicit
P0849R8 auto(x)
: decay-copy In The Language
(The compiler part isn't implemented yet. The library part was implemented in C++20 mode when Ranges support was initially implemented.)
P0881R7 <stacktrace>
P2301R1 Add A pmr
Alias For std::stacktrace
P1328R1 constexpr type_info::operator==()
P2440R1 ranges::iota
, ranges::shift_left
, ranges::shift_right
P2441R2 views::join_with
Added an option "Navigation after Create Declaration/Definition" to allow you to choose the navigation behavior of the Create Declaration/Definition feature. You can select between peeking (the default) or opening the document, or no navigation.
Arm64 builds of Visual Studio now bundle Arm64 versions of CMake and Ninja.
Added support for CMake Presets version 4. For details of what is available, see the CMake release notes.
Remote system connections using the Connection Manager now support SSH ProxyJump. ProxyJump is used to access an SSH host via another SSH host (for example, to access a host behind a firewall).
Released Aug 2022
For more information about | See |
---|---|
What's new for C++ developers | C++ improvements in 17.3 |
Standard Library (STL) merged C++23 features, LWG issue resolutions, performance improvements, enhanced behavior, and fixed bugs | STL Changelog 17.3 |
New features in the Visual Studio 17.3 IDE | Visual Studio 2022 version 17.3 Release Notes |
C++ language conformance improvements in Visual Studio 2022 17.3 | C++ Conformance improvements, behavior changes, and bug fixes in Visual Studio 2022 |
A partial list of new features in 17.3:
enum
type completion (for example, assignments to enum
variables, case labels, returning enum
type, and so on), the autocompletion list is now filtered to just the matching enumerators and related constructs.Released May 2022
For more information about | See |
---|---|
What's new for C++ developers | Visual Studio 2022 17.2 is now available |
Standard Library (STL) merged C++20 defect reports, C++23 features, LWG issue resolutions, performance improvements, enhanced behavior, and fixed bugs | STL Changelog 17.2 |
New features in the Visual Studio 17.2 IDE | Visual Studio 2022 version 17.2 Release Notes |
C++ language conformance improvements in Visual Studio 2022 17.2 | C++ Conformance improvements, behavior changes, and bug fixes in Visual Studio 2022 |
A partial list of new features in 17.2:
this
, available under the /std:c++latest
option.this
and if consteval
./std:c++20
option. For more information about the implemented backports, see the VS 2022 Changelog in the Microsoft/STL GitHub repository and the MSVC's STL Completes /std:c++20
blog post./std:c++latest
option. For more information about the new features, see the STL Repo changelog.Released Feb 2022
For more information about | See |
---|---|
What's new for C++ developers | Visual Studio 2022 17.1 is now available! |
Standard Library (STL) merged C++23 features, LWG issue resolutions, performance improvements, enhanced behavior, and fixed bugs | STL Changelog 17.1 |
New features in the Visual Studio 17.1 IDE | Visual Studio 2022 version 17.1 Release Notes |
C++ language conformance improvements in Visual Studio 2022 17.1 | C++ Conformance improvements, behavior changes, and bug fixes in Visual Studio 2022 |
A partial list of new features in 17.1:
CMakePresets.json
. You can also launch CMake targets on a remote macOS system, and then debug remotely in the Visual Studio debugger backed by GDB or LLDB.Clang
and LLVM
shipped with Visual Studio are upgraded to v13.CMakeLists.txt
is identified at the root of the open workspace. If a CMakeLists.txt
is identified at another level of the workspace, then you're prompted to activate Visual Studio's CMake integration with a notification.Released Nov 2021
For more information about | See |
---|---|
New features in the Visual Studio 17.0 IDE | Visual Studio 2022 version 17.0 Release Notes |
Standard Library (STL) merged C++23 and C++26 features, C++20 defect reports, LWG issue resolutions, performance improvements, enhanced behavior, and fixed bugs | STL Changelog 17.0 |
C++ language conformance improvements in Visual Studio 2022 17.0 | C++ Conformance improvements, behavior changes, and bug fixes in Visual Studio 2022 17.10 |
An overview of some of the new features in Visual Studio 2022 version 17.0:
devenv.exe
, is now a native 64-bit application.In Visual Studio 2022, when you start your app in the debugger, you can use the Hot Reload button to modify your application while it's still running. This experience is powered by native Edit and Continue. For more information about supported edits, see Edit and Continue (C++).
Upgraded the version of CMake shipped with Visual Studio to version 3.21. For more information on what's available in this version, see the CMake 3.21 release notes.
CMake Overview Pages are updated to support CMakePresets.json
.
You can now configure and build your CMake projects with CMake 3.21 and CMakePresets.json
v3.
Visual Studio now supports the buildPresets.targets
option in CMakePresets.json
. This option allows you to build a subset of targets in your CMake project.
The Project menu in CMake projects is streamlined and exposes options to "Delete Cache and Reconfigure" and "View Cache."
Implemented the /scanDependencies
compiler option to list C++20 module dependencies for CMake projects, as described in P1689R5. It's a step towards support for building modules-based projects with CMake and we're working on completing this support in later releases.
Select Standard Library (STL) improvements are highlighted here. For a comprehensive list of new functionality, changes, bug fixes, and performance improvements, see the STL team's Changelog.
source_location
, bind_front()
, u8string
(and its iterators), default_sentinel_t
, unreachable_sentinel_t
, ranges::empty_view
, ranges::single_view
, ranges::iota_view
(and its iterator/sentinel), ranges::ref_view
, thread
, thread::id
, jthread
, and filesystem::path
[[nodiscard]]
to the stoi()
family of functions in <string>
and to various functions in <locale>
such as the collate
member functions, has_facet()
, and the isalnum()
and tolower()
families.std::string
constexpr
in VS 2019 16.10. Now supported for Clang.std::vector
constexpr
in VS 2019 16.10. Now supported for Clang.Highlighted C++23 features
is_scoped_enum
, a new trait for the C++ Standard library, which detects whether a type is a scoped enumeration.out_ptr()
, inout_ptr()
contains()
For basic_string
and basic_string_view
to_underlying()
for enumerationsstd::variant
basic_string
and basic_string_view
from nullptr
. This change is a source-breaking change. Code that previously had undefined behavior at runtime is now rejected with compiler errors.declare_reachable
, undeclare_reachable
, declare_no_pointers
, undeclare_no_pointers
, get_pointer_safety
. Previously, these functions had no effect.Highlighted performance improvements
<format>
now detects when it's writing to a back_insert_iterator
for a basic_string
or a vector
, and makes a faster call to insert()
at the end()
of the container.std::find()
and std::count()
for vector<bool>
19x and 26x (times, not percent).std::count()
for vector<bool>
std::byte
now has the same performance as unsigned char
in reverse()
and variant::swap()
LLVM tools shipped with Visual Studio are upgraded to LLVM 12. For more information, see the LLVM release notes.
Clang-cl support was updated to LLVM 12.
You can now debug processes running on a remote system from Visual Studio by using LLDB.
<amp.h>
in a C++ project generates build errors. To silence the errors, define _SILENCE_AMP_DEPRECATION_WARNINGS
. For more information, see our AMP Deprecation links._Check_return_
or _Must_inspect_result_
must be checked.gsl::not_null
to code analysis./fsanitize=fuzzer
compiler option.Release notes for older C++ versions are also available:
C++ IntelliSense
For more information on other open issues and available workarounds for C++ in Visual Studio 2022, see the C++ Developer Community issues list.
We'd love to hear from you! You can Report a Problem or Suggest a Feature by using the Send Feedback icon in the upper right-hand corner of either the installer or the Visual Studio IDE, or from Help > Send Feedback. You can track your issues by using Visual Studio Developer Community, where you add comments or find solutions. You can also get free installation help through our Live Chat support.
Take advantage of the insights and recommendations available in the Microsoft Developer Blogs site to stay up to date on all new releases. The blogs include deep dive posts on a broad range of features. The C++ Team Blog and the Visual Studio Blog are of particular interest.
Pagsasanay
Learning path
Use advance techniques in canvas apps to perform custom updates and optimization - Training
Use advance techniques in canvas apps to perform custom updates and optimization