c++ - Optimizer Bug - bug.cpp
- John Jameson <John_member pathlink.com> Nov 01 2005
- "Walter Bright" <newshound digitalmars.com> Nov 01 2005
Hi Walter
Looks like we've finally managed to break DMC 8.45 (100,000's lines of code have
been OK so far!)
Attached is bug.cpp containing:
#include <stdio.h>
int w[16];
void main (void)
{ char buffer[1024], *ptr=buffer;
for (int i=0; i<8; ++i)
ptr += sprintf (ptr, "W%-2d=0x%04X ", i, w[i]);
printf ("buffer is '%s'\n", buffer);
}
Compile as sc -mn bug.cpp and then again with -o+time and get different results.
We haven't looked at exactly, what the compiler is doing.
Cheers
John
Nov 01 2005








"Walter Bright" <newshound digitalmars.com>