I am trying to NOT use constant. use if eval { require mod; 1 }, qw' constant haveMod 1 '; can't get very complicated, cosmetically, For example, during running/compiling of the require of a use for a PM, probing the capabilities of the current OS/perl installation, including, calling XSUBs, setting the constant subs, then defining the subs that rely on those constant subs and having the perl compiler delete the subroutine branches for never to be used code path.

I looked through the source of constant.pm, its doing something black magic, "mro::method_changed_in($classname)" and Internals::SvREADONLY to make its constant subs. Not the public Constant Functions way.

In reply to Re^2: constants wont optimize by patcat88
in thread constants wont optimize by patcat88

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