A Pre-Processor Bug???

ecsed · 06-30-2005, 09:52 AM

Hy friends,

why do I get with Linux (gcc-Version 3.3.5 (Debian 1:3.3.5-8)):

#define CLOCAL 0004000
printf (" CLOCAL : O-%07o \n", CLOCAL);
printf (" 04000 : O-%07o \n", 04000);

two different outputs:

CLOCAL : O-0100000
04000 : O-0004000

Is the define statement really mis-interpreted as hex-value???

Thanks!
Regards
Egon

taylor_venable · 06-30-2005, 10:18 AM

I'm using gcc 4.0.0 with this code:

Code:

#include <stdio.h>
#define CLOCAL 0004000

int main(int argc, char** argv) {
    printf (" CLOCAL : O-%07o \n", CLOCAL);
    printf (" 04000 : O-%07o \n", 04000);
    return 0;
}

and I get this result:

Code:

 CLOCAL : O-0004000
 04000 : O-0004000

Looks like you could easily be looking at a bug there...