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[Bug c++/38986] comparing lengths of 2 strings reads through both strings completely
- From: "esigra at gmail dot com" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 30 Jan 2009 16:12:55 -0000
- Subject: [Bug c++/38986] comparing lengths of 2 strings reads through both strings completely
- References: <bug-38986-315@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #2 from esigra at gmail dot com 2009-01-30 16:12 -------
GCC already understands the semantics of strlen. If one of the operands to "<"
is a constant and the other is strlen, it is optimized (such as "strlen(str) >=
1). It just seems like the case with strlen on both sides is missing.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38986