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| author | Gurusamy Sarathy <gsar@cpan.org> | 1999-12-02 04:30:22 +0000 |
|---|---|---|
| committer | Gurusamy Sarathy <gsar@cpan.org> | 1999-12-02 04:30:22 +0000 |
| commit | 3ce0d27165e3cb29a307d40968a8000b48bea3eb (patch) | |
| tree | caa8cc89dfd0952783106715ae8284c4e1067e00 | |
| parent | 220398a0501cffd114fa4441a4a685dc486ed3d8 (diff) | |
| download | perl-3ce0d27165e3cb29a307d40968a8000b48bea3eb.tar.gz | |
various documentation tweaks suggested by M. J. T. Guy
p4raw-id: //depot/perl@4616
| -rw-r--r-- | INSTALL | 6 | ||||
| -rw-r--r-- | lib/strict.pm | 3 | ||||
| -rw-r--r-- | pod/perlfunc.pod | 4 | ||||
| -rw-r--r-- | pod/perlsyn.pod | 2 |
4 files changed, 11 insertions, 4 deletions
@@ -4,6 +4,10 @@ Install - Build and Installation guide for perl5. =head1 SYNOPSIS +First, make sure you are installing an up-to-date version of Perl. If +you didn't get your Perl source from CPAN, check the latest version at +<URL:http://www.perl.com/CPAN/src/>. + The basic steps to build and install perl5 on a Unix system are: rm -f config.sh Policy.sh @@ -28,8 +32,6 @@ on the platform. If that's not okay with you, use make test make install -Full configuration instructions can be found in the INSTALL file. - For information on non-Unix systems, see the section on L<"Porting information"> below. diff --git a/lib/strict.pm b/lib/strict.pm index 940e8bf7ff..99ed01d583 100644 --- a/lib/strict.pm +++ b/lib/strict.pm @@ -56,6 +56,9 @@ L<perlfunc/local>. The local() generated a compile-time error because you just touched a global name without fully qualifying it. +Because of their special use by sort(), the variables $a and $b are +exempted from this check. + =item C<strict subs> This disables the poetry optimization, generating a compile-time error if diff --git a/pod/perlfunc.pod b/pod/perlfunc.pod index 7cf4d3fd0a..a68c7a0836 100644 --- a/pod/perlfunc.pod +++ b/pod/perlfunc.pod @@ -1199,8 +1199,8 @@ C<eof> without the parentheses to test I<each> file in a while } Practical hint: you almost never need to use C<eof> in Perl, because the -input operators return false values when they run out of data, or if there -was an error. +input operators typically return C<undef> when they run out of data, or if +there was an error. =item eval EXPR diff --git a/pod/perlsyn.pod b/pod/perlsyn.pod index 0dd842d2a2..1f3ae50f2d 100644 --- a/pod/perlsyn.pod +++ b/pod/perlsyn.pod @@ -163,6 +163,8 @@ If the LABEL is omitted, the loop control statement refers to the innermost enclosing loop. This may include dynamically looking back your call-stack at run time to find the LABEL. Such desperate behavior triggers a warning if you use the B<-w> flag. +Unlike a C<foreach> statement, a C<while> statement never implicitly +localises any variables. If there is a C<continue> BLOCK, it is always executed just before the conditional is about to be evaluated again, just like the third part of a |