more regex folding tests

[p5sagit/p5-mst-13.2.git] / lib / bigfloat.pl

diff --git a/lib/bigfloat.pl b/lib/bigfloat.pl
index 032dfe6..9f94e84 100644 (file)
--- a/lib/bigfloat.pl
+++ b/lib/bigfloat.pl
@@ -1,5 +1,20 @@
 package bigfloat;
 require "bigint.pl";
+#
+# This library is no longer being maintained, and is included for backward
+# compatibility with Perl 4 programs which may require it.
+# This legacy library is deprecated and will be removed in a future
+# release of perl.
+#
+# In particular, this should not be used as an example of modern Perl
+# programming techniques.
+#
+# Suggested alternative: Math::BigFloat
+
+warn( "The 'bigfloat.pl' legacy library is deprecated and will be"
+      . " removed in the next major release of perl. Please use the"
+      . " Math::BigFloat module instead." );
+
 # Arbitrary length float math package
 #
 # by Mark Biggar
@@ -70,7 +85,12 @@ sub norm { #(mantissa, exponent) return fnum_str
 sub main'fneg { #(fnum_str) return fnum_str
     local($_) = &'fnorm($_[$[]);
     vec($_,0,8) ^= ord('+') ^ ord('-') unless $_ eq '+0E+0'; # flip sign
-    s/^H/N/;
+    if ( ord("\t") == 9 ) { # ascii
+        s/^H/N/;
+    }
+    else { # ebcdic character set
+        s/\373/N/;
+    }
     $_;
 }