My guesses are:
sub thisoutine {
PRE_CODE();
thisroutine() and do {
CONTINUE();
};
}
or
sub thisroutine {
PRE_CODE();
unless (thatroutine()) {
CONTINUE();
}
}
However, with the latter one, you should be aware of a certain
optimization bug described in Re^3: A cleaner way of scoping variables (Update: fixed link)
which may cause that
the return value of thatroutine is not returned
it thatroutine() is a compile-time constant.
Also,
do not replace unless ( with
if (! or if (not, as those
would cause the subroutine to return the result of
!thatroutine() if thatroutine
returns true.
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