On Wed, Feb 08, 2012 at 03:06:46PM +0100, Adam Borowski wrote: > gzip's output is likely to change: > * on a different architecture > * with different optimizations If either of these are the case (assuming a valid, deterministic, non-arch-specific implementation) then this violates C's as-if rule. The compiled version has to act as if it did exactly what the C said. Optimizations or other transformations that cause the compiled code to violate this are a bug in the compiler. -- brian m. carlson / brian with sandals: Houston, Texas, US +1 832 623 2791 | http://www.crustytoothpaste.net/~bmc | My opinion only OpenPGP: RSA v4 4096b: 88AC E9B2 9196 305B A994 7552 F1BA 225C 0223 B187
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