Thread: Am I missing something? (2d arrays)

Hi, as part of a larger program I need to create a list of random words(user defined, both the number of words and the length of each word), display the list, and then write valid words to a file. I'm stuck at creating and displaying the list correctly. Here is the snippet of code that is troubling me:

Code:

void generate_words( unsigned long int words, int length ) {
	
	unsigned long int x;
	int y,r,i,j;
	
	srand( time(NULL) );
	
	x = (int) ( rand() / ( RAND_MAX / words + 1 )) + 1;
	y = (int) ( rand() / ( RAND_MAX / length + 1 )) + 1;

	char buffer[x][y];

////////////Problem begins here.///////////////////////

	for( i=0; i<x; i++ ) {

		for( j=0; j<y; j++ ) {
			r = rand()%25;
			buffer[i][j] = letters[r];
		}
		printf("i=%d, j=%d\n", i, j );

		buffer[i][j] = '\0';
	}
	int k;
	
        for( k=0; k<x; k++ ) {

		printf( "buffer[%d] = %s\n", k, buffer[k] );

	}
	
	for( i=0; i<x; i++ ) {
		for( j=0; j<=y; j++ ) {
			printf("buffer[%d][%d] = %c\n", i,j,buffer[i][j]);
		}
	}

	printf("x = %d, y = %d\n", x, y );
	
}

The problem is each randomly generated string isn't null terminated, so when I print the buffer array it prints every character. It looks to me like I'm null terminated in the line

Code:

buffer[i][j] = '\0';

But that obviously isn't what I need to be doing. Any help would be greatly appreciated.

Wow, I am an idiot....

thanks