diff options
| author | vlefevre <vlefevre@280ebfd0-de03-0410-8827-d642c229c3f4> | 2018-08-28 17:39:32 +0000 |
|---|---|---|
| committer | vlefevre <vlefevre@280ebfd0-de03-0410-8827-d642c229c3f4> | 2018-08-28 17:39:32 +0000 |
| commit | fed4ea96210e5c39b6660afc185a18066d7fad6c (patch) | |
| tree | d4d96ba617098321664b35b6c4f0be6fbb5cb24a /src/sub_ui.c | |
| parent | bef5b39b4aee607d8417e0034b64f6a858d0085f (diff) | |
| download | mpfr-fed4ea96210e5c39b6660afc185a18066d7fad6c.tar.gz | |
[src/sub_ui.c] Extend the exponent range early enough.
git-svn-id: svn://scm.gforge.inria.fr/svn/mpfr/trunk@13062 280ebfd0-de03-0410-8827-d642c229c3f4
Diffstat (limited to 'src/sub_ui.c')
| -rw-r--r-- | src/sub_ui.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/src/sub_ui.c b/src/sub_ui.c index bab44cff0..51a236147 100644 --- a/src/sub_ui.c +++ b/src/sub_ui.c @@ -62,6 +62,10 @@ mpfr_sub_ui (mpfr_ptr y, mpfr_srcptr x, unsigned long int u, mpfr_rnd_t rnd_mode int inex; MPFR_SAVE_EXPO_DECL (expo); + /* Optimization note: Exponent save/restore operations may be + removed if mpfr_sub works even when uu is out-of-range. */ + MPFR_SAVE_EXPO_MARK (expo); + #ifdef MPFR_LONG_WITHIN_LIMB MPFR_TMP_INIT1 (up, uu, GMP_NUMB_BITS); /* So, u fits in a mp_limb_t, which justifies the casts below. */ @@ -73,9 +77,6 @@ mpfr_sub_ui (mpfr_ptr y, mpfr_srcptr x, unsigned long int u, mpfr_rnd_t rnd_mode mpfr_set_ui (uu, u, MPFR_RNDZ); #endif - /* Optimization note: Exponent save/restore operations may be - removed if mpfr_sub works even when uu is out-of-range. */ - MPFR_SAVE_EXPO_MARK (expo); MPFR_SET_EXP (uu, GMP_NUMB_BITS - cnt); inex = mpfr_sub (y, x, uu, rnd_mode); #ifndef MPFR_LONG_WITHIN_LIMB |