Help with functions!!!

**jhosie_g** · 11-16-2015

I'm having trouble returning a value from a function and passing it to another function!! I need to return n from cmat and pass it to printmat

Code:

void cmat(float mat[MAX_MAT_SIZE][MAX_MAT_SIZE]

Code:

{
  int i,j,n;
  printf("\nEnter the order of matrix: ");
  scanf("%d",&n);
  printf("\nEnter the elements of augmented matrix:\n\n");
  for(i=1; i<=n; i++)
  {
    for(j=1; j<=(n+1); j++)
    {
      printf("A[%d][%d] : ", i,j);
      scanf("%f",&mat[i][j]);
    }
  }
}

void printmat(float mat[MAX_MAT_SIZE][MAX_MAT_SIZE])
{
   inti,j,n;    for(i=0; i<n; i++)
  {
    for(j=0; j<(n+1); j++)
    {
      printf("%f : ", mat[i][j]);
      printf("\n");
}
  }}

}

**laserlight** · 11-16-2015

Well, if you want to return a value from cmat, you should declare cmat as having a return type corresponding to the type of the value that you want to return, and then have a return statement to return the value.

**jhosie_g** · 11-16-2015

would you please show me how to do that, I am super confused

**laserlight** · 11-16-2015

Here is an example program of a function foo that returns a value and a function print_foo that prints the value that foo returns:

Code:

#include <stdio.h>

int foo(void)
{
    return 123;
}

void print_foo(void)
{
    printf("%d\n", foo());
}

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

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