[Bug c/81777] Compiler doesn't detect wrong function declaration

[jsiebert at poczta dot wp.pl]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81777

--- Comment #1 from jsiebert at poczta dot wp.pl ---
file test.c:
#include "testarg.h"

int main(void)
{
testarg();
return 0;
}

[Bug c/81777] New: Compiler doesn't detect wrong function declaration

[jsiebert at poczta dot wp.pl]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81777

Bug ID: 81777
   Summary: Compiler doesn't detect wrong function declaration
   Product: gcc
   Version: unknown
Status: UNCONFIRMED
  Severity: normal
  Priority: P3
 Component: c
  Assignee: unassigned at gcc dot gnu.org
  Reporter: jsiebert at poczta dot wp.pl
  Target Milestone: ---

Is it possible to miss wrong declaration of function in seperate include file.

An example:

file testarg.c:
#include 

typedef struct  {
int c;
} test_t;

void testarg(test_t *t)
{
printf("c = %d\n", t->c);
return;
}

file testarg.h:
void testarg(void);

file test.c:
#include "testarg.h"

int main(void)
{
gcc test.c testarg.c -o test
testarg();
return 0;
}

compilation with:
gcc -Wall -Werror -pedantic-errors test.c testarg.c -o test

gives no warning or error about wrong testarg() usage.