是否有预处理器宏可跨平台检测C99? [英] Is there a preprocessor macro to detect C99 across platforms?

问题描述

C ++具有__cplusplus预处理程序定义，可用于检测版本. C有类似的东西吗?

最好我希望它可以在XCode，GCC和Visual Studio版本之间移植.

解决方案

根据Wikipedia上 C99 上的文章

A standard macro __STDC_VERSION__ is defined with value 199901L to indicate that C99 support is available

#if __STDC_VERSION__ >= 199901L
   /*C99*/
#else
  /*Not C99*/
#endif

C++ has a __cplusplus preprocessor define that lets you detect the version. Is there anything similar for C?

Preferably I'd like it to be portable across XCode, GCC, and Visual Studio versions.

解决方案

As per article on Wikipedia on C99

A standard macro __STDC_VERSION__ is defined with value 199901L to indicate that C99 support is available

#if __STDC_VERSION__ >= 199901L
   /*C99*/
#else
  /*Not C99*/
#endif

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