int_t.h File Reference

#include <stdint.h>
#include <limits.h>

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Classes
union	twords
union	utwords
union	udwords
union	double_bits

Typedefs
typedef __int128	ti_int

Functions
__int128	__clzti2 (__int128 a)

Typedef Documentation

ti_int

typedef __int128 ti_int

Definition at line 43 of file int_t.h.

Function Documentation

__clzti2()

__int128 __clzti2 ( __int128 a )

inline

Definition at line 45 of file int_t.h.

{
    twords x;
    x.all = a;
    const int64_t f = -(x.s.high == 0);
    return __builtin_clzll((x.s.high & ~f) | (x.s.low & f)) +
           ((int32_t)f & ((int32_t)(sizeof(int64_t) * CHAR_BIT)));
}

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