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JensAyton/gist:3855499

Created October 8, 2012 23:00
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Some of the macros in NSObjCRuntime.h just aren’t ugly enough.
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gistfile1.m
#undef MIN
#define MIN__(A,B,C) ({ __typeof__(A) __a##C = (A); __typeof__(B) __b##C = (B); __a##C < __b##C ? __a##C : __b##C; })
#define MIN_(A,B,C) MIN__(A,B,C)
#define MIN(A,B) MIN_(A,B,__COUNTER__)
#undef MAX
#define MAX__(A,B,C) ({ __typeof__(A) __a##C = (A); __typeof__(B) __b##C = (B); __a##C < __b##C ? __b##C : __a##C; })
#define MAX_(A,B,C) MAX__(A,B,C)
#define MAX(A,B) MAX_(A,B,__COUNTER__)
#undef ABS
#define ABS__(A,C) ({ __typeof__(A) __a##C = (A); __a##C < 0 ? -__a##C : __a##C; })
#define ABS_(A,C) ABS__(A,C)
#define ABS(A) ABS_(A,__COUNTER__)
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