Re: Pointers to functions in structures trubble!

addinall@xxxxxxxxxxxx wrote:
Ian Collins wrote:

addinall@xxxxxxxxxxxx wrote:

Ian Collins wrote:


What's the prototype for __life? Generally not a good idea to use '__'
at the beginning of a function name.


Yeah. I thought an earlier prblem may have been name duplication
so.....

I got it to compile by...


<snipped code>

new_heartbeat->life = &__life ;

The & isn't requited and you realy should remove the double underscore
from your names. All identifiers starting with double underscore are
reserved.

So... it compiles and links without errors just on a simple

cc t.c -o t

Try to run it

../t
Segmentation fault.

Something is stuffed and I think it may be me! ;-)

Star with a simple test case, like

#include <stdio.h>

void f() { puts("hello\n"); }

struct X
{
void (*fn)();
};

int
main()
{
struct X x;

x.fn = f;

x.fn();
}

--
Ian Collins.
.

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