#include "fdlibm.h"
#ifdef __STDC__
static const float
#else
static float
#endif
TWO23[2]={
8.3886080000e+06,
-8.3886080000e+06,
};
#ifdef __STDC__
float rintf(float x)
#else
float rintf(x)
float x;
#endif
{
int32_t i0,j0,sx;
uint32_t i,i1;
float w,t;
GET_FLOAT_WORD(i0,x);
sx = (i0>>31)&1;
j0 = ((i0>>23)&0xff)-0x7f;
if(j0<23) {
if(j0<0) {
if((i0&0x7fffffff)==0) return x;
i1 = (i0&0x07fffff);
i0 &= 0xfff00000;
i0 |= ((i1|-i1)>>9)&0x400000;
SET_FLOAT_WORD(x,i0);
w = TWO23[sx]+x;
t = w-TWO23[sx];
GET_FLOAT_WORD(i0,t);
SET_FLOAT_WORD(t,(i0&0x7fffffff)|(sx<<31));
return t;
} else {
i = (0x007fffff)>>j0;
if((i0&i)==0) return x;
i>>=1;
if((i0&i)!=0) i0 = (i0&(~i))|((0x100000)>>j0);
}
} else {
if(j0==0x80) return x+x;
else return x;
}
SET_FLOAT_WORD(x,i0);
w = TWO23[sx]+x;
return w-TWO23[sx];
}
#ifdef _DOUBLE_IS_32BITS
#ifdef __STDC__
double rint(double x)
#else
double rint(x)
double x;
#endif
{
return (double) rintf((float) x);
}
#endif