How to use _WIN32 and _CYGWIN_ macros

Question

I was trying to detect target operating system using c macros _WIN32 and _ CYGWIN_ but it shows error that _ CYGWIN_ is undeclared. How to use these macros to find target operating system

score 2 · Answer 1 · edited May 23 '17 at 12:13

2

gcc on cygwin defines the macro __CYGWIN32__.

Take a look at GCC dump preprocessor defines to find all the macros defined by the preprocessor.

edited May 23 '17 at 12:13

Community

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answered May 08 '14 at 20:46

R Sahu

204,454
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score 2 · Accepted Answer · answered May 08 '14 at 20:48

2

Try using #ifdef. For example:

#ifdef __CYGWIN__
  // Cygwin specific code
#else
  // Other code
#endif

answered May 08 '14 at 20:48

David S.

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How to use _WIN32 and _CYGWIN_ macros

2 Answers2