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benstiglitz/gist:1927376

Created February 27, 2012 21:59
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gistfile1.c
#define is_signed(T) ({ intmax_t __s = -1; T __t = (T)__s; __t < 0; })
#define maxofint(T) (is_signed(T) == 0 ? \
((uintmax_t)1 << (sizeof(T) * 8)) - 1 : \
((uintmax_t)1 << (sizeof(T) * 8 - 1)))
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