X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=lib%2Fbigfloat.pl;h=8c28abdcd1d2eb4e0090e3d6718e5676f59c14f6;hb=7eb7d786de9bebe120f2143ce65237684a3a5d80;hp=032dfe6fb52b3227e05bd7f2cf3bdf2e4fd4b278;hpb=5d7098d560a042a848a6e60f96567ce4b694c6c7;p=p5sagit%2Fp5-mst-13.2.git

diff --git a/lib/bigfloat.pl b/lib/bigfloat.pl
index 032dfe6..8c28abd 100644
--- a/lib/bigfloat.pl
+++ b/lib/bigfloat.pl
@@ -1,5 +1,14 @@
 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.
+#
+# In particular, this should not be used as an example of modern Perl
+# programming techniques.
+#
+# Suggested alternative: Math::BigFloat
+#
 # Arbitrary length float math package
 #
 # by Mark Biggar
@@ -70,7 +79,12 @@ 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/;
+    }
     $_;
 }