Error messages.

Question

I'm getting the following message 'StrType3\StrType3.cpp(19,5): error C4996: 'strcpy': This function or variable may be unsafe. Consider using strcpy_s instead. To disable deprecation, use _CRT_SECURE_NO_WARNINGS. See online help for details.' And with 'strcat'. I have the following includes in the program <string> & <cstring>. I've entered this program from a book - 'C++ Primer Plus, 6th edition.'

Thank you.

Answer 1

Hi,

I suggest you could refer to the Doc: Compiler Warning (level 3) C4996

To fix a C4996 issue, we usually recommend you change your code. Use the suggested functions and global variables instead. If you need to use the existing functions or variables for portability reasons, you can turn off the warning.

According to the error message, I suggest you could try to use strcpy_s instead of strcpy.

You could also try to turn off deprecation warnings for these functions in the CRT via define _CRT_SECURE_NO_WARNINGS.

For more details I suggest you could refer to the link: https://learn.microsoft.com/en-us/cpp/error-messages/compiler-warnings/compiler-warning-level-3-c4996?view=msvc-160#unsafe-crt-library-functions

Best Regards,

Jeanine

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Answer 2

Well, the error message gave you the solution. Insert #define _CRT_SECURE_NO_WARNINGS in your source file prior to including any header files.

Answer 3

Thanks for your help.