glibc/sysdeps/powerpc/powerpc32/fpu/s_lrint.c

54 lines
1.5 KiB
C

/* Round floating-point to integer. PowerPC version.
Copyright (C) 1997,2002 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
/* Kludge to avoid decls that will confuse strong_alias below. */
#define __lrintf XXX__lrintf
#define __lrintl XXX__lrintl
#define lrintf XXXlrintf
#define lrintl XXXlrintl
#include "math.h"
#undef __lrintf
#undef __lrintl
#undef lrintf
#undef lrintl
long int
__lrint (double x)
{
union
{
double d;
int ll[2];
} u;
asm ("fctiw %0,%1" : "=f"(u.d) : "f"(x));
return u.ll[1];
}
weak_alias (__lrint, lrint)
strong_alias (__lrint, __lrintf)
weak_alias (__lrint, lrintf)
#ifdef NO_LONG_DOUBLE
strong_alias (__lrint, __lrintl)
weak_alias (__lrint, lrintl)
#endif