[thirdparty/glibc.git] / math / w_exp2f_compat.c

/*
 * wrapper exp2f(x)
 */

#include <math.h>
#include <math_private.h>
#include <math-svid-compat.h>

#if LIBM_SVID_COMPAT && SHLIB_COMPAT (libm, GLIBC_2_1, GLIBC_2_27)
float
__exp2f_compat (float x)
{
  float z = __ieee754_exp2f (x);
  if (__builtin_expect (!isfinite (z) || z == 0, 0)
      && isfinite (x) && _LIB_VERSION != _IEEE_)
    /* exp2 overflow: 144, exp2 underflow: 145 */
    return __kernel_standard_f (x, x, 144 + !!signbit (x));

  return z;
}
compat_symbol (libm, __exp2f_compat, exp2f, GLIBC_2_1);
#endif
Commit	Line	Data
650425ce UD	1	/*
	2	* wrapper exp2f(x)
	3	*/
	4
9d13fb24	5	#include <math.h>
9277c064	6	#include <math_private.h>
813378e9	7	#include <math-svid-compat.h>
650425ce	8
f5f0f526	9	#if LIBM_SVID_COMPAT && SHLIB_COMPAT (libm, GLIBC_2_1, GLIBC_2_27)
650425ce	10	float
f5f0f526	11	__exp2f_compat (float x)
650425ce	12	{
0cb7efc5	13	float z = __ieee754_exp2f (x);
d81f90cc WD	14	if (__builtin_expect (!isfinite (z) \|\| z == 0, 0)
d81f90cc WD	15	&& isfinite (x) && _LIB_VERSION != _IEEE_)
0ac5ae23	16	/* exp2 overflow: 144, exp2 underflow: 145 */
d81f90cc	17	return __kernel_standard_f (x, x, 144 + !!signbit (x));
0ac5ae23	18
0cb7efc5	19	return z;
650425ce	20	}
f5f0f526	21	compat_symbol (libm, __exp2f_compat, exp2f, GLIBC_2_1);
4f3647e4	22	#endif