Update IO-Compress to CPAN version 2.040

[perl5.git] / pod / perldata.pod

diff --git a/pod/perldata.pod b/pod/perldata.pod
index 6d0fa0b..7899e39 100644 (file)
--- a/pod/perldata.pod
+++ b/pod/perldata.pod
@@ -179,8 +179,9 @@ are considered pretty much the same thing for nearly all purposes,
 references are strongly-typed, uncastable pointers with builtin
 reference-counting and destructor invocation.
 
-A scalar value is interpreted as TRUE in the Boolean sense if it is not
-the null string or the number 0 (or its string equivalent, "0").  The
+A scalar value is interpreted as FALSE in the Boolean sense
+if it is undefined, the null string or the number 0 (or its
+string equivalent, "0"), and TRUE if it is anything else.  The
 Boolean context is just a special kind of scalar context where no 
 conversion to a string or a number is ever performed.
 X<boolean> X<bool> X<true> X<false> X<truth>
@@ -294,7 +295,9 @@ integer formats:
     0b011011            # binary
 
 You are allowed to use underscores (underbars) in numeric literals
-between digits for legibility.  You could, for example, group binary
+between digits for legibility (but not multiple underscores in a row:
+C<23__500> is not legal; C<23_500> is).
+You could, for example, group binary
 digits by threes (as for a Unix-style mode argument such as 0b110_100_100)
 or by fours (to represent nibbles, as in 0b1010_0110) or in other groups.
 X<number, literal>