Public bug reported:
Binary package hint: gcc-4.2
This is bizarre... gcc-4.2.3 for Hardy on ia32 compiles the code below
into a program that prints 1. The correct answer is 0, and this is what
all other compilers (including gcc-4.1 and gcc-3.4 on Hardy/ia32)
return.
Furthermore, FSF gcc-4.2.3 also gives the correct answer!
Probably someone should look into this as comparison errors like this
could easily have security implications.
#include <stdio.h>
int func_1 (void)
{
signed char l_11 = 1;
unsigned char l_12 = -1;
return (l_11 > l_12);
}
int main (void)
{
printf ("%d\n", func_1());
return 0;
}
** Affects: gcc-4.2 (Ubuntu)
Importance: Undecided
Status: New
--
gcc-4.2.3 on Hardy/ia32 miscompiles simple code
https://bugs.launchpad.net/bugs/256797
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