Add mpfr_zero_p.

Add macros for mpfr_inf_p, mpfr_nan_p and mpfr_zero_p.
Add macro for mpfr_sgn.
Update doc.
Add new tests.


git-svn-id: svn://scm.gforge.inria.fr/svn/mpfr/trunk@2871 280ebfd0-de03-0410-8827-d642c229c3f4

1 files changed, 2 insertions, 2 deletions

diff --git a/isinf.c b/isinf.c
index 41b75034e..176bf2b0c 100644
--- a/isinf.c
+++ b/isinf.c
@@ -22,7 +22,7 @@ MA 02111-1307, USA. */
 #include "mpfr-impl.h"
 
 int
-mpfr_inf_p (mpfr_srcptr x)
+(mpfr_inf_p) (mpfr_srcptr x)
 {
-  return !MPFR_IS_NAN(x) && MPFR_IS_INF(x);
+  return MPFR_IS_INF(x);
 }