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author | hanrot <hanrot@280ebfd0-de03-0410-8827-d642c229c3f4> | 2000-12-13 14:50:13 +0000 |
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committer | hanrot <hanrot@280ebfd0-de03-0410-8827-d642c229c3f4> | 2000-12-13 14:50:13 +0000 |
commit | 3035f62d87667e08ac5370bca1e47fe8f683c2e8 (patch) | |
tree | c92b2c9b03671e77b17f5ca89f731e53cdfaa1ce /ui_div.c | |
parent | ee574c97721b76618933ca6d5738f948e7abe1ec (diff) | |
download | mpfr-3035f62d87667e08ac5370bca1e47fe8f683c2e8.tar.gz |
Take into account Inf, Nans ; clear the flags of the return variable
in most function calls.
git-svn-id: svn://scm.gforge.inria.fr/svn/mpfr/trunk@851 280ebfd0-de03-0410-8827-d642c229c3f4
Diffstat (limited to 'ui_div.c')
-rw-r--r-- | ui_div.c | 13 |
1 files changed, 12 insertions, 1 deletions
@@ -43,6 +43,14 @@ mpfr_ui_div(y, u, x, rnd_mode) unsigned long cnt; TMP_DECL(marker); + if (MPFR_IS_NAN(x)) { MPFR_SET_NAN(y); return; } + if (MPFR_IS_INF(y)) + { + MPFR_SET_ZERO(x); + if (MPFR_SIGN(x) != MPFR_SIGN(y)) { MPFR_CHANGE_SIGN(y); } + return; + } + if (u) { TMP_MARK(marker); MON_INIT(up, uu, BITS_PER_MP_LIMB, 1); @@ -54,5 +62,8 @@ mpfr_ui_div(y, u, x, rnd_mode) TMP_FREE(marker); } - else MPFR_SET_ZERO(y); /* if u=0, then set y to 0 */ + else { + if (MPFR_IS_ZERO(x)) { MPFR_SET_NAN(y); } + else MPFR_SET_ZERO(y); /* if u=0, then set y to 0 */ + } } |