_SCL_SECURE_NO_WARNINGS
Visual C++ in Visual Studio 2015
The latest version of this topic can be found at _SCL_SECURE_NO_WARNINGS.
Calling any one of the potentially unsafe methods in the Standard C++ Library will result in Compiler Warning (level 3) C4996. To disable this warning, define the macro _SCL_SECURE_NO_WARNINGS in your code:
#define _SCL_SECURE_NO_WARNINGS
Remarks
Other ways to disable warning C4996 include:
- Using the /D (Preprocessor Definitions) compiler option:
cl /D_SCL_SECURE_NO_WARNINGS [other compiler options] myfile.cpp
- Using the /w compiler option:
cl /wd4996 [other compiler options] myfile.cpp
- Using the #pragma warning directive:
#pragma warning
(disable:4996)
Also, you can manually change the level of warning C4996 with the /w<l><n> compiler option. For example, to set warning C4996 to level 4:
cl /w44996 [other compiler options] myfile.cpp
For more information, see /w, /W0, /W1, /W2, /W3, /W4, /w1, /w2, /w3, /w4, /Wall, /wd, /we, /wo, /Wv, /WX (Warning Level).