modf.c: take care of user exponent range (possible underflow/overflow)

git-svn-id: svn://scm.gforge.inria.fr/svn/mpfr/trunk@4846 280ebfd0-de03-0410-8827-d642c229c3f4

1 files changed, 5 insertions, 0 deletions

diff --git a/tests/tmodf.c b/tests/tmodf.c
index f873e53e5..c278c38ca 100644
--- a/tests/tmodf.c
+++ b/tests/tmodf.c
@@ -110,6 +110,11 @@ main (int argc, char *argv[])
   check ("61680","3.52935791015625e-1", "61680.352935791015625", 53, 53, 53, 0, GMP_RNDZ);
   check ("-53968","-3.529052734375e-1", "-53970.352935791015625", 13, 13, 53, 2, GMP_RNDZ);
   check ("61632","3.525390625e-1",      "61648.352935791015625", 10, 10, 53, -2, GMP_RNDZ);
+  check ("61680", "0", "61680",  53, 53, 53, 0, GMP_RNDZ);
+  check ("-53968","0", "-53970", 13, 13, 53, 1, GMP_RNDZ);
+  check ("-43392","0", "-43399", 13, 13, 53, 1, GMP_RNDU);
+  check ("-52720","0", "-52719", 13, 13, 53, -1, GMP_RNDD);
+  check ("61632", "0", "61648",  10, 10, 53, -1, GMP_RNDZ);
  
   tests_end_mpfr ();
   return 0;