| /* Software floating-point emulation. |
| frexpl(x, exp) |
| Copyright (C) 1999 Free Software Foundation, Inc. |
| This file is part of the GNU C Library. |
| Contributed by Jakub Jelinek (jj@ultra.linux.cz). |
| |
| 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. */ |
| |
| /* |
| * for non-zero x |
| * x = frexpl(arg,&exp); |
| * return a long double fp quantity x such that 0.5 <= |x| <1.0 |
| * and the corresponding binary exponent "exp". That is |
| * arg = x*2^exp. |
| * If arg is inf, 0.0, or NaN, then frexpl(arg,&exp) returns arg |
| * with *exp=0. |
| */ |
| |
| #include "soft-fp.h" |
| #include "quad.h" |
| |
| long double __frexpl(long double arg, int *exp) |
| { |
| FP_DECL_EX; |
| FP_DECL_Q(A); |
| long double r; |
| |
| *exp = 0; |
| FP_UNPACK_Q(A, arg); |
| if (A_c != FP_CLS_NORMAL) |
| return arg; |
| *exp = A_e + 1; |
| A_e = -1; |
| FP_PACK_Q(r, A); |
| |
| return r; |
| } |
| |
| weak_alias (__frexpl, frexpl) |
