[WTF] Unexpected behavior in C, prints full matrix, no warnings

print_matrix.c

/*
WTF behavior in C. At least not what I expected.
Prints full matrix with just one call to the index
*/

#include "stdio.h"
#include "stdlib.h"

void print_square_matrix(int* matrix, int size);

int main(int argc, char const *argv[])
{
    printf("Matrix \n");
    int SIZE = 50;

    // Allocate space for the matrix
    int** matrix;
    matrix = (int **) malloc (sizeof(int*) * SIZE);
    int i;
    for (i = 0; i < SIZE; ++i)
    {
        matrix[i] = (int*) calloc (0, sizeof(int) * SIZE);
    }

    printf("printing matrix \n");
    print_square_matrix(&matrix[0][0], SIZE);

    return 0;
}

void print_square_matrix(int* matrix, int size){
    int i;
    int j;
    for (i = 0; i < size; ++i)
    {
        for (j = 0; j < size; ++j)
        {
            printf("%d", matrix[i]);
        }
        printf("\n");
    }
}