How to get rid of this warning!

Question

Hi,

Can anyone show me how to get rid of this warning:

>c:\_flash\2_development\1_apps\bmc\bmc_project\bmc_176x186\bmc.cpp(186) : warning C4996: 'fopen': This function or variable may be unsafe. Consider using fopen_s instead. To disable deprecation, use _CRT_SECURE_NO_WARNINGS. See online help for details.

What is _CRT_SECURE_NO_WARNINGS and where can I find it?

Regards

Rob

 

Answer 1

>c:\_flash\2_development\1_apps\bmc\bmc_project\bmc_176x186\bmc.cpp(186) : warning C4996: 'fopen': This function or variable may be unsafe. Consider using fopen_s instead. To disable deprecation, use _CRT_SECURE_NO_WARNINGS. See online help for details.

I think when they said, "See online help for details.", they meant the MSDN Library , not these forums.
When they say define something you can use the #define directive in your source file, or you can use the project Properties -> Configuration Properties -> C/C++ -> Preprocessor -> Preprocessor Definitions (info here ).

Answer 2

Either add _CRT_SECURE_NO_WARNINGS per Fredrick's instructions or use fopen_s.  If you are writing code that must be portable, use _CRT_SECURE_NO_WARNINGS, as that is a Microsoft extension.