3 #if LDBL_MANT_DIG == 53 && LDBL_MAX_EXP == 1024
4 long double truncl(long double x)
8 #elif (LDBL_MANT_DIG == 64 || LDBL_MANT_DIG == 113) && LDBL_MAX_EXP == 16384
9 #if LDBL_MANT_DIG == 64
11 #elif LDBL_MANT_DIG == 113
14 long double truncl(long double x)
16 union ldshape u = {x};
17 int e = u.i.se & 0x7fff;
21 if (e >= 0x3fff+LDBL_MANT_DIG-1)
24 FORCE_EVAL(x + 0x1p120f);
27 /* y = int(|x|) - |x|, where int(|x|) is an integer neighbor of |x| */
30 y = x + TOINT - TOINT - x;