(__floor): Copy commentary from bits/mathinclude.h. Kill unused defines.

This commit is contained in:
Ulrich Drepper 1999-01-29 16:55:14 +00:00
parent f8aa498753
commit 92a38c359c

View File

@ -17,18 +17,17 @@
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#ifndef __USE_EXTERN_INLINES
#define __USE_EXTERN_INLINES
#endif
#define __floor __i_floor
#include <math.h>
#undef __floor
/* Use the -inf rounding mode conversion instructions to implement
floor. We note when the exponent is large enough that the value
must be integral, as this avoids unpleasant integer overflows. */
double
__floor (double x)
{
/* Check not zero since floor(-0) == -0. */
if (x != 0 && fabs (x) < 9007199254740992.0) /* 1 << DBL_MANT_DIG */
{
double __tmp1;