sandbox/bugs/defaultargs.c

Default arguments do not work for functions returning a pointer

When applying default arguments to a function that returns a pointer, the C compiler raises an error. This happens because qcc does not substitute the default argument values during the function call (from the inspection of the -source code).

int aglobal = 1;

int foo1 (int a = 2) {
  printf ("a = %d\n", a); 
  return aglobal;
}

int * foo2 (int a = 2) {
  printf ("a = %d\n", a); 
  return &aglobal;
}

int main() {
  foo1();

too few arguments to function ‘foo2’

  foo2();
}