Thread: Compling errors

Hello, here is my code below... I'm getting compiling errors as below. What is wrong?

Code:

cc1: warnings being treated as errors
q1.c: In function 'GRAPHinit':
q1.c:49: error: implicit declaration of function 'MATRIXint'
q1.c:49: error: assignment makes pointer from integer without a cast

Code:

#include <stdio.h>
#include <stdlib.h>

#define maxV 10

int visited[maxV];

typedef struct { int v; int w; } Edge;
struct graph { int V; int E; int **adj; }; // adj [][] is a matrix.
typedef struct graph *Graph;

Graph GRAPHinit(int V);
int **MATRIXinit(int r, int c, int val);
int GRAPHpath(Graph G, int v, int w);
int pathR(Graph G, int v, int w);

int main(int argc, char *argv[]) {



   return 0;
}

int GRAPHpath(Graph G, int v, int w) {
   int t;

   for (t = 0; t < G -> V; t++) visited[t] = 0;

   return pathR(G, v, w);
}

int pathR(Graph G, int v, int w) {
   int t;

   if (v == w) return 1;

   visited[v] = 1;

   for (t = 0; t < G ->V; t++)
      if (G ->adj[v][t] == 1)
         if (visited[t] == 0)
            if (pathR(G, t, w)) return 1;
   return 0; //We will not come back to v. So, we will leave v as visited.
}

Graph GRAPHinit(int V) {
   Graph G = malloc(sizeof *G);
   G ->V = V; G->E = 0;
   G->adj = MATRIXint(V, V, 0);
   return G;
}

int **MATRIXinit(int r, int c, int val){
   int i, j;
   int **t = malloc( r * sizeof(int *) );
   for (i = 0; i < r; i++)
      t[i] = malloc(c * sizeof(int));
   for (i = 0; i < r; i++)
      for (j = 0; j < c; j++)
         t[i][j] = val;
   return t;
}

Thanks