[Bug c++/69641] New: invalid int32 comparison
vvsed at hotmail dot com
gcc-bugzilla@gcc.gnu.org
Tue Feb 2 22:53:00 GMT 2016
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69641
Bug ID: 69641
Summary: invalid int32 comparison
Product: gcc
Version: 5.1.0
Status: UNCONFIRMED
Severity: major
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: vvsed at hotmail dot com
Target Milestone: ---
The program prints 0 1 instead of 1 1.
Same behavior with gcc 4.8 and 5.1, with both -m64 and -m32.
/*
D:\Tools\MinGW64\bin\g++.exe -m64 -O2 -Wall -save-temps gcerr.cpp -ovx_class_gc
Compiler: http://tdm-gcc.tdragon.net/about
invalid int32 comparison
*/
#include <stdio.h>
int main(int argc, const char *argv[])
{
int i = 0x7F800000;
fprintf(stdout, "%d \n", 0 > (int)(i + 0x00800000));
fprintf(stdout, "%d \n", 0 > (int)0x80000000);
fprintf(stdout, "press Enter");
getc(stdin);
return 0;
}
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