mirror of
https://sourceware.org/git/glibc.git
synced 2025-11-03 20:53:13 +03:00
24 lines
458 B
C
24 lines
458 B
C
/*
|
|
* wrapper exp2(x)
|
|
*/
|
|
|
|
#include <math.h>
|
|
#include <math_private.h>
|
|
|
|
double
|
|
__exp2 (double x)
|
|
{
|
|
double z = __ieee754_exp2 (x);
|
|
if (__builtin_expect (!__finite (z), 0)
|
|
&& __finite (x) && _LIB_VERSION != _IEEE_)
|
|
/* exp2 overflow: 44, exp2 underflow: 45 */
|
|
return __kernel_standard (x, x, 44 + !!__signbit (x));
|
|
|
|
return z;
|
|
}
|
|
weak_alias (__exp2, exp2)
|
|
#ifdef NO_LONG_DOUBLE
|
|
strong_alias (__exp2, __exp2l)
|
|
weak_alias (__exp2, exp2l)
|
|
#endif
|