Thread: Passing 2D arrays?

#include "theworld"

Why is this illegal and what is the appropriate way to do this?

void try1(char test[][])
{
char c[10][10];
for(int i = 0; i < 10; i++)
strcpy(c[i], test[i]);
}
for(i = 0; i < 10; i++)
cout<<c[i]<<endl;

}
void main()
{
char c[10][10];

for(int i = 0; i < 10; i++)
{
strcpy(c[i], "TEST");
}
try1(c);

}

I know the sample code is not following any standard, please forgive me.

The easiest way is to follow the way the array is declared

Given
char c[10][20];

The function prototype would be
void try1( char array[10][20] );

Code:

void try1(char test[10][10]) 
{ 
    char c[10][10]; 
    for(int i = 0; i < 10; i++) 
        strcpy(c[i], test[i]); 
    } 
    for(i = 0; i < 10; i++) 
        cout<<c[i]<<endl; 
} 

int main() // always int, never void
{ 
    char c[10][10]; 

    for(int i = 0; i < 10; i++) 
    { 
        strcpy(c[i], "TEST"); 
    } 
    try1(c); 
    return 0;
}