On Wed, 2002-07-17 at 08:44, Ryan Bloom wrote: > While errno is not a simple variable, compilers are smart enough to > treat it as if it is a simple variable, so just 'return errno' works > everywhere.
Wrong. errno is in fact on most systems a hidden function call and the C language does not have any provisions to say that a function call can be eliminated because it always returns the same value and has no side effects. We have such a feature in gcc but it's not evailable everywhere. And the fact that you don't make copies in APR anywhere does not mean anything. -- ---------------. ,-. 1325 Chesapeake Terrace Ulrich Drepper \ ,-------------------' \ Sunnyvale, CA 94089 USA Red Hat `--' drepper at redhat.com `------------------------
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