Re: copying structs - PPC/Intel different results
Re: copying structs - PPC/Intel different results
- Subject: Re: copying structs - PPC/Intel different results
- From: Eric Albert <email@hidden>
- Date: Wed, 28 Jun 2006 09:32:14 -0700
On Jun 28, 2006, at 5:14 AM, Marc Poirier wrote:
Given this example:
struct Thingy {
int a;
int b;
int c;
};
const Thingy kFirstThingy = { 1, 2, 3 };
const Thingy kSecondThingy = kFirstThingy;
When compiling with GCC 4.0.1 for PPC code, the three values of
kSecondThingy are 1, 2, 3. But when compiling with GCC 4.0.1 for
Intel code, the three values of kSecondThingy are 0, 0, 0.
I'm unsure, is one of these a bug? If so, which? I would tend to
think the Intel results are wrong, though maybe I'm doing something
I shouldn't be doing, I'm not sure...
Can you show a complete example?
Erics-MacBook-Pro:~> cat test.c
#include <stdio.h>
struct Thingy {
int a;
int b;
int c;
};
int main(void) {
const struct Thingy kFirstThingy = { 1, 2, 3 };
const struct Thingy kSecondThingy = kFirstThingy;
printf("First a, b, c: %d, %d, %d\n", kFirstThingy.a,
kFirstThingy.b, kFirstThingy.c);
printf("Second a, b, c: %d, %d, %d\n", kSecondThingy.a,
kSecondThingy.b, kSecondThingy.c);
return 0;
}
Erics-MacBook-Pro:~> gcc -Wall -g -o test test.c
Erics-MacBook-Pro:~> ./test
First a, b, c: 1, 2, 3
Second a, b, c: 1, 2, 3
Erics-MacBook-Pro:~>
-Eric
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