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by yosh
5929 days ago
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Careful with casting strings to ints like that, it'll break on architectures that require aligned accesses, i.e. if you try to load a uint32, the address of the memory location must be a multiple of 4. x86 happens to be fine with non-aligned access, but many other architectures aren't. If you look at the nginx source, that #define is guarded under NGX_HAVE_NONALIGNED and there is a fallback that does straight byte by byte comparison. |
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That's not even funny anymore... I wonder how many iterations will it take, until they discover that strncmp compiles down to "repz cmpsb" (or equivalent) and you really cannot do better than that with if-s on each character.