Question

    char *test = "hello";

    test = change_test("world");

    printf("%s",test);

char* change_test(char *n){
    printf("change: %s",n);

    return n;
}

im trying to pass a ‘string’ back to a char pointer using a function but get the following error:

assignment makes pointer from integer without a cast

what am i doing wrong?

Answer 1

A function used without forward declaration will be considered having signature int (...). You should either forward-declare it:

char* change_test(char*);
...
  char* test = "hello";
  // etc.

or just move the definition change_test before where you call it.