Fix Math::BigFloat->numify().

Math::BigFloat->numify() shall, according to the documentation and to be
consistent with Math::BigInt->numify() and Math::BigRat->numify(),
return a Perl scalar number, not a string.

- dist/Math-BigInt/lib/Math/BigFloat.pm:
  - Fix objectify().
- dist/Math-BigInt/t/bigfltpm.inc:
   - Remove no longer relevant tests.
   - Modify existing tests and add new tests to verify correct behaviour.

This fix closes RT #66732.

1 files changed, 3 insertions, 3 deletions

diff --git a/dist/Math-BigInt/lib/Math/BigFloat.pm b/dist/Math-BigInt/lib/Math/BigFloat.pm
index 06a6e48417..40881038d5 100644
--- a/dist/Math-BigInt/lib/Math/BigFloat.pm
+++ b/dist/Math-BigInt/lib/Math/BigFloat.pm
@@ -437,10 +437,10 @@ sub bsstr
     
 sub numify 
   {
-  # Make a number from a BigFloat object
-  # simple return a string and let Perl's atoi()/atof() handle the rest
+  # Convert a Perl scalar number from a BigFloat object.
+  # Create a string and let Perl's atoi()/atof() handle the rest.
   my ($self,$x) = ref($_[0]) ? (undef,$_[0]) : objectify(1,@_);
-  $x->bsstr(); 
+  return 0 + $x->bsstr(); 
   }
 
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