VLA

#include <stdio.h>
void copy(int n, int m, double source[n][m]);
void print_array(int n, int m, double target[n][m]);

double array[3][5]={{1,2,3,4,5},{6,7,8,9,12},{15,16,17,18,19}};
double target[3][5];

int main(void){
    copy(3,5, array);
    print_array(3,5,target);
    return 0;
}

void copy(int n, int m, double source[n][m]){
    int rows, cols;
    for(rows=0; rows<n; rows++){
        for(cols=0; cols<m; cols++){
            target[rows][cols]=source[rows][cols];
        }
    }


}

void print_array(int n, int m, double target[n][m]){
    int rows, cols;
    for(rows=0; rows<n; rows++){
        for(cols=0; cols<m; cols++){
            printf("%.1f  ", target[rows][cols]);
        }
        printf("\n");
    }
}