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| | #include "libm.h"
#if LDBL_MANT_DIG == 53 && LDBL_MAX_EXP == 1024
long double frexpl(long double x, int *e)
{
return frexp(x, e);
}
#elif (LDBL_MANT_DIG == 64 || LDBL_MANT_DIG == 113) && LDBL_MAX_EXP == 16384
long double frexpl(long double x, int *e)
{
union ldshape u = {x};
int ee = u.i.se & 0x7fff;
if (!ee) {
if (x) {
x = frexpl(x*0x1p120, e);
*e -= 120;
} else *e = 0;
return x;
} else if (ee == 0x7fff) {
return x;
}
*e = ee - 0x3ffe;
u.i.se &= 0x8000;
u.i.se |= 0x3ffe;
return u.f;
}
#endif
|