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Add the MIN and MAX macros for platforms that lack them

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This commit is contained in:
Nick Mathewson 2010-02-25 16:48:26 -05:00
parent eb10d441b6
commit f0b5f87eab
1 changed files with 13 additions and 0 deletions
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13
src/common/compat.h
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@ -553,6 +553,19 @@ void tor_cond_signal_all(tor_cond_t *cond);
#endif #endif
#endif #endif
/** Macros for MIN/MAX. Never use these when the arguments could have
* side-effects.
* {With GCC extensions we could probably define a safer MIN/MAX. But
* depending on that safety would be dangerous, since not every platform
* has it.}
**/
#ifndef MAX
#define MAX(a,b) ( ((a)<(b)) ? (b) : (a) )
#endif
#ifndef MIN
#define MIN(a,b) ( ((a)>(b)) ? (b) : (a) )
#endif
/* Platform-specific helpers. */ /* Platform-specific helpers. */
#ifdef MS_WINDOWS #ifdef MS_WINDOWS
char *format_win32_error(DWORD err); char *format_win32_error(DWORD err);