/* wrapper fmodf */
float
__fmodf (float x, float y)
{
if (__builtin_expect (__isinf_nsf (x) || y == 0.0f, 0)
&& _LIB_VERSION != _IEEE_ && !__isnanf (y) && !__isnanf (x))
/* fmod(+-Inf,y) or fmod(x,0) */
return __kernel_standard_f (x, y, 127);
return __ieee754_fmodf (x, y);
}
float
__ieee754_remainderf(float x, float p)
{
int32_t hx,hp;
u_int32_t sx;
float p_half;
GET_FLOAT_WORD(hx,x);
GET_FLOAT_WORD(hp,p);
sx = hx&0x80000000;
hp &= 0x7fffffff;
hx &= 0x7fffffff;
/* purge off exception values */
if((hp==0)|| /* p = 0 */
(hx>=0x7f800000)|| /* x not finite */
((hp>0x7f800000))) /* p is NaN */
return nan_mix_op(x, p, *)/nan_mix_op(x, p, *);
if (hp<=0x7effffff) x = __ieee754_fmodf(x,p+p); /* now x < 2p */
if ((hx-hp)==0) return zero*x;
x = fabsf(x);
p = fabsf(p);
if (hp<0x01000000) {
if(x+x>p) {
x-=p;
if(x+x>=p) x -= p;
}
} else {
p_half = (float)0.5*p;
if(x>p_half) {
x-=p;
if(x>=p_half) x -= p;
}
}
GET_FLOAT_WORD(hx,x);
if ((hx&0x7fffffff)==0) hx = 0;
SET_FLOAT_WORD(x,hx^sx);
return x;
}
float
__remquof (float x, float y, int *quo)
{
int32_t hx,hy;
u_int32_t sx;
int cquo, qs;
GET_FLOAT_WORD (hx, x);
GET_FLOAT_WORD (hy, y);
sx = hx & 0x80000000;
qs = sx ^ (hy & 0x80000000);
hy &= 0x7fffffff;
hx &= 0x7fffffff;
/* Purge off exception values. */
if (hy == 0)
return (x * y) / (x * y); /* y = 0 */
if ((hx >= 0x7f800000) /* x not finite */
|| (hy > 0x7f800000)) /* y is NaN */
return (x * y) / (x * y);
if (hy <= 0x7dffffff)
x = __ieee754_fmodf (x, 8 * y); /* now x < 8y */
if ((hx - hy) == 0)
{
*quo = qs ? -1 : 1;
return zero * x;
}
x = fabsf (x);
y = fabsf (y);
cquo = 0;
if (x >= 4 * y)
{
x -= 4 * y;
cquo += 4;
}
if (x >= 2 * y)
{
x -= 2 * y;
cquo += 2;
}
if (hy < 0x01000000)
{
if (x + x > y)
{
x -= y;
++cquo;
if (x + x >= y)
{
x -= y;
++cquo;
}
}
}
else
{
float y_half = 0.5 * y;
if (x > y_half)
{
x -= y;
++cquo;
if (x >= y_half)
{
x -= y;
++cquo;
}
}
}
*quo = qs ? -cquo : cquo;
if (sx)
x = -x;
return x;
}