matrix.c

#include "matrix.h"

int main(int argc, char *argv[])
{
        int size;
        int i, j, row;

        if (argc < 2)
        {
                printf("usage: ./matrix <size>\n");
                return 1;
        }

	size = atoi(argv[1]);

        int **matrix;

        matrix = malloc(sizeof(int *) * size);

        if (matrix == NULL)
                return (400);

        for (row = 0; row < size; row++)
        {
                matrix[row] = malloc(sizeof(int) * size);

                if (matrix[row] == NULL)
                        return (400);
        }

        printf("Enter a %d x %d matrix.\nIn this format: ", size, size);

        for (i = 0; i < size; i++)
        {
                for(j = 0; j < size; j++)
                        printf(" %d", rand() % 10);

		if (i < size - 1)
			printf(",");
        }
        printf("\n");

        for (i = 0; i < size; i++)
        {
                for(j = 0; j < size; j++)
			scanf("%d%*c", &matrix[i][j]);
        }

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

        for (row = 0; row < size; row++)
                free(matrix[row]);

        free(matrix);

        return (0);
}