Author: Bruce Moreland
Date: 17:50:32 01/01/03
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On January 01, 2003 at 19:28:01, Uri Blass wrote: >I agree. > >I think that in cases that you care about speed then it is more important to >care first about speed of the logic and not about speed of C. > >It means that if you have a condition A&&B and it is usually wrong because of B >then it may be better to change it to B&&A. > >It is something that the compiler cannot do by itself because the compiler is >not going to take the risk that B can cause a crash when A is false and the >compiler has no way to know that B cannot cause a crash. C is defined such that if you have (A && B), A will be evaluated first always. The case where you get undefined execution order is this one: func(A(), B()); The order in which A() and B() are called is undefined. bruce
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