Re: [PATCH] a more efficient BUG() macro

[Andrew Morton <andrewm@uow.edu.au>]

Keith Owens wrote:
> 
> But ....
> 
> a.h
> static inline void hello(void) { printf("%d at %s\n",__LINE__,__FILE__); }
> 
> a.c
> #include <stdio.h>
> #include "a.h"
> 
> int main()
> {
>     hello();
>     hello();
>     return 0;
> }
> 
> # ./a
> 1 at a.h
> 1 at a.h
> 

__BASE_FILE__ does this.  It expands to the thing which you
typed on the `gcc' command line.

bix:/home/morton> cat a.h
static inline void hello(void)
{
        printf("%d at %s\n",__LINE__,__BASE_FILE__);
}
bix:/home/morton> cat a.c
#include <stdio.h>
#include "a.h"

int main()
{
        hello();
        hello();
        return 0;
}

bix:/home/morton> gcc -O a.c
bix:/home/morton> ./a.out
3 at a.c
3 at a.c