Question

I found similar questions but I don’t think they applied to my specific problem, so I’m sorry if they do!

I’m learning C as a first year CS student and trying to make a quiz in C, but I can’t get anywhere because every time I try to compile to see if it’s working I get the message “warning: initialization makes pointer from integer without a cast.”

I’ve worked out all of the syntax errors (I think) but I just for the life of my can’t figure this out. I’ve gone through all of my lecture slides but none of them cover this.

#include <stdio.h>
#include <scc110.h>

int player1score, player2score;
char* answer1, answer11, answer111, answer2, answer22, answer222;

int geography()
{
  printf ("The first category is geography. Note: Player 1 always goes first.\n");

  char* answer1 = AskForStringAndWait("Player 1: What is the capital of India?");
  if (strcmp(answer1,"New Delhi")==0)
    player1score++;

  char* answer2 = AskForStringAndWait("Player 2: What is the capital of Iran?");
  if (strcmp(answer2,"Tehran")==0)
    player2score++;

  char* answer11 = AskForStringAndWait("Player 1: Name a country that borders France that  isn't Germany, Italy or Spain.");
  if (strcmp(answer11,"Luzembourgh")==0 ||
      strcmp(answer11,"Switzerland")==0 ||
      strcmp(answer11,"Belgium")==0)
    player1score++;

  char* answer22 = AskForStringAndWait("Player 2: Name one of the main British Channel Islands.");
  if (strcmp(answer22,"Guernsey")==0 ||
      strcmp(answer22,"Jersey")==0)
    player2score++;
}

Answer 1

You forgot to declare AskForStringAndWait function.

In modern C (past-C99) that would be an error, since C99 does not allow calling undeclared functions.

In C89/90 it is not an error. When an undeclared function is called, it is assumed that it returns an int value. So, your

char* answer1 = AskForStringAndWait("Player 1: What is the capital of India?");

is interpreted as an attempt to initialize a char * pointer with an int value. Hence the warning.