Author: Tony Werten
Date: 23:08:36 04/09/03
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On April 09, 2003 at 11:11:01, Uri Blass wrote: >Supppose file1 and file2 are numbers between 0 and 7. > >Am I correct to assume that in general it is better to not to use > >int A[8]; >If (file1<=file2) x+=A[file2-file1]; Most modern compilers will do better with: bonus=0; if (file1>file2) bonus=A[file2-file1]; x+=bonus; The 2nd line basicly forces the compiler to use a CMOV. It might also work with less forcing, but this way you are sure. Tony > > >but instead of it something like > >int PADDED_A[15]; >int * const A = PADDED_A+7; >x+=A[file2-file1]; > >\\A[x]=0 for x=-1,x=-2,...x=-7 > > >Uri
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