diff options
| author | vlefevre <vlefevre@280ebfd0-de03-0410-8827-d642c229c3f4> | 2005-10-31 21:27:08 +0000 |
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| committer | vlefevre <vlefevre@280ebfd0-de03-0410-8827-d642c229c3f4> | 2005-10-31 21:27:08 +0000 |
| commit | 958dd6249f3937a5458c3ce76e8bc5a7bca5bdc6 (patch) | |
| tree | c502fe39c4e25dba098adf8aa083c41a97f3677a /int_ceil_log2.c | |
| parent | 36e2f086f1e4e2cc7dfc9c92d3fa24d8f9ca1ddf (diff) | |
| download | mpfr-958dd6249f3937a5458c3ce76e8bc5a7bca5bdc6.tar.gz | |
Added an MPFR_UNLIKELY (suggested by Patrick) and an MPFR_ASSERTN.
git-svn-id: svn://scm.gforge.inria.fr/svn/mpfr/trunk@3918 280ebfd0-de03-0410-8827-d642c229c3f4
Diffstat (limited to 'int_ceil_log2.c')
| -rw-r--r-- | int_ceil_log2.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/int_ceil_log2.c b/int_ceil_log2.c index e0524ce1f..a917cc5b4 100644 --- a/int_ceil_log2.c +++ b/int_ceil_log2.c @@ -25,13 +25,15 @@ MA 02110-1301, USA. */ int __gmpfr_int_ceil_log2 (unsigned long n) { - if (n == 1) + if (MPFR_UNLIKELY (n == 1)) return 0; else { int b; - mp_limb_t limb = n - 1; + mp_limb_t limb; + MPFR_ASSERTN (n > 1); + limb = n - 1; MPFR_ASSERTN (limb == n - 1); count_leading_zeros (b, limb); return BITS_PER_MP_LIMB - b; |