more about compiler warnings

[MK27]

If I get a warning that gives the output object file with a number (eg, a.out:3415) what does this number refer to?

[tabstop]

The line number.

[MK27]

The line number.

In the binary object? What's in there, asm?

[tabstop]

Sorry, I misread. The a.out file? It's still probably a location, but of course probably not a line number. Can you give more (as in any) context?

[MK27]

Sorry, I misread. The a.out file? It's still probably a location, but of course probably not a line number. Can you give more (as in any) context?

Gosh -- all this flipping terminal tabs -- perhaps it wasn't really from the compiler but at execution....if it happens again I will be the first one to tell you

[dwks]

The only thing that I can think of is that is must have been a linker error/warning, i.e.

$ cat undef.c
#include <stdio.h>

void function();

int main() {
    function();
    return 0;
}
$ gcc undef.c
/tmp/ccea6Yiz.o: In function `main':
undef.c:(.text+0xa): undefined reference to `function'
collect2: ld returned 1 exit status
$

Otherwise, for a compiler error, you would have gotten a reference to a source file, not an object file. But even then the source file is mentioned, and the name of the output executable is not.

Who knows.