in reply to anyway to abbreviate use strict; use warnings;

The easy portable way for "warnings" is
#!/usr/bin/perl -w
   # on the first line of file (*NIX or Windows).
   # on a Unix type system, you need all but the -w anyway.
   # a Windows box will see the -w and use it.
   # I always recommend the usage of:
   # use strict;

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"Strict" has a compile time penalty. "Warnings" has a run-time penalty (but not that much). Unless you are darn sure your program is working very well AND you need the extra performance, I would never turn "Warnings Off". Strict is a compile time option and very cheap. Always use that.

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Re^2: anyway to abbreviate use strict; use warnings;
by ikegami (Patriarch) on Jan 11, 2009 at 08:26 UTC

    I've seen a number of benchmarks for warnings, and there never was a run-time penalty. 

           Rate w=1 w=0
w=1 3003/ms  -- -1%
w=0 3032/ms  1%  --

       Rate w=1 w=0
w=1 3002/ms  -- -0%
w=0 3010/ms  0%  --

    [download]

    Benchmark code

    I'm curious as to why you said compile-time. Some strict checks are done at run-time. But again, there's no penalty for strict either. 

            Rate sr=0 sr=1
sr=0 2751/ms   --  -0%
sr=1 2759/ms   0%   --

        Rate sr=1 sr=0
sr=1 2735/ms   --  -1%
sr=0 2754/ms   1%   --

    [download]

    Benchmark code

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