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| author | vlefevre <vlefevre@280ebfd0-de03-0410-8827-d642c229c3f4> | 2003-05-22 21:39:40 +0000 |
|---|---|---|
| committer | vlefevre <vlefevre@280ebfd0-de03-0410-8827-d642c229c3f4> | 2003-05-22 21:39:40 +0000 |
| commit | 44b4dd94bb98c8d9e7850ae401232bd1b2ea3028 (patch) | |
| tree | 9670f0ef8017d42ad2a2062dc08c63c022e450c8 /mul_ui.c | |
| parent | 2f3cb289a102043a22bd32c5950db37199fb3fd2 (diff) | |
| download | mpfr-44b4dd94bb98c8d9e7850ae401232bd1b2ea3028.tar.gz | |
Macros MPFR_EXP_INVALID (invalid exponent value) and MPFR_EXP_CHECK
added. Code update to use MPFR_GET_EXP and MPFR_SET_EXP instead of
MPFR_EXP to allow more bug detection related to special values.
Macros MPFR_SET_NAN, MPFR_SET_INF, MPFR_SET_ZERO and MPFR_INIT set
the exponent of the number to MPFR_EXP_INVALID if MPFR_EXP_CHECK
is defined. Compile with -DMPFR_EXP_CHECK and make check to see
the potential problems; currently, 40 of 76 tests fail.
git-svn-id: svn://scm.gforge.inria.fr/svn/mpfr/trunk@2301 280ebfd0-de03-0410-8827-d642c229c3f4
Diffstat (limited to 'mul_ui.c')
| -rw-r--r-- | mul_ui.c | 7 |
1 files changed, 4 insertions, 3 deletions
@@ -1,6 +1,6 @@ /* mpfr_mul_ui -- multiply a floating-point number by a machine integer -Copyright 1999, 2000, 2001, 2002 Free Software Foundation, Inc. +Copyright 1999, 2000, 2001, 2002, 2003 Free Software Foundation, Inc. This file is part of the MPFR Library. @@ -112,10 +112,11 @@ mpfr_mul_ui (mpfr_ptr y, mpfr_srcptr x, unsigned long int u, mp_rnd_t rnd_mode) TMP_FREE(marker); - if (__gmpfr_emax < MPFR_EMAX_MIN + cnt || MPFR_EXP(x) > __gmpfr_emax - cnt) + if (__gmpfr_emax < MPFR_EMAX_MIN + cnt || + MPFR_GET_EXP (x) > __gmpfr_emax - cnt) return mpfr_set_overflow(y, rnd_mode, MPFR_SIGN(x)); - MPFR_EXP(y) = MPFR_EXP(x) + cnt; + MPFR_SET_EXP (y, MPFR_GET_EXP (x) + cnt); MPFR_SET_SAME_SIGN(y, x); return inexact; |