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ctypedef

Is there a way to typedef a function to modify argument in C?

I have code that needs to call sleep for both windows and linux.

In an attempt to avoid placing ifdefs everywhere there is a Sleep I did the following

typedef Sleep sleep

The issue with this is windows takes Sleep in microseconds and linux takes sleep in seconds. Is there a way to do something like this pseudo-code.

typedef Sleep(x) sleep(x/1000)
Solution

  • No, you cannot use a typedef for this purpose.

    However, you can write the following preprocessor macro:

    #if defined( _WIN32 ) || defined( _WIN64 )
#define MY_SLEEP_MACRO( x ) Sleep(x)
#else
#define MY_SLEEP_MACRO( x ) sleep((x)/1000)
#endif

    Now, in your code, you can simply call MY_SLEEP_MACRO( 5000 ); in order to wait 5 seconds on both platforms.