int matrix with pointers in C - memory allocation confusion

Question

I\'m having some issues with producing an int matrix without creating memory leaks. I want to be able to make a given (global) matrix into any size dynamically via read_matr

Answer 1

You only freed the first row (or column) of first_matrix. Write another function like this:

void free_matrix(int **matrix, int rows)
{
    int i;
    for(i=0; i<rows; i++)
    {
        free(matrix[i]);
    }
    free(matrix);
}

You might want to make the matrix into a struct to store it's row and column count.