Help on printing a 8x8 grid in C

I need help printing a 8x8 grid in C.

A typical 1x1 grid is supposed to look like this:

+----+
|    |
|    | 
|    |
+----+

But I'm not getting that even though I checked everything that would be causing the problem.

Could you guys look over the code and tell me what the problem is?

        int main() {

    row_count = 2;
    col_count = 2;

    strcpy(row0NoX, "-----+");
    strcpy(row1NoX, "     |");
    strcpy(row2NoX, "     |");
    strcpy(row3NoX, "     |");
    strcpy(开发者_如何学编程row4NoX, "-----+");

    printf("Welcome to the Checkerboard program!\n");

    for (row = 0; row < row_count; row++) {

        for (tiny_row = 1; tiny_row < N_ROWS; tiny_row++) {

            printf("%c", row0NoX[strlen(row0NoX)-1]);
            printf("%c", row1NoX[strlen(row1NoX)-1]);
            printf("%c", row2NoX[strlen(row2NoX)-1]);
            printf("%c", row3NoX[strlen(row3NoX)-1]);
            printf("%c", row4NoX[strlen(row4NoX)-1]);


            for (col = 0; col < col_count; col++) {

                switch (checkerboard[row][col]) {
                    case 0:
                        switch (tiny_row) {
                            case 1:
                                printf("%s", row0NoX);
                                break;
                            case 2:
                                printf("%s", row1NoX);
                                break;
                            case 3:
                                printf("%s", row2NoX);
                                break;
                            case 4:
                                printf("%s", row3NoX);
                                break;
                            case 5:                             
                                printf("%s", row4NoX);
                                break;
                            default:
                                printf("Error");
                                break;
                        }                       
                        break;  
                }               
            }
            printf("\n");           
        }       
    }   
    //printf("Enter a command: ");  
    return (0);
}

The output is close but somehow I'm missing the |s and the +----+ at the end.

Output for 2x2:

+|||+-----+-----+
+|||+     |     |
+|||+     |     |
+|||+     |     |
+|||+-----+-----+
+|||+-----+-----+
+|||+     |     |
+|||+     |     |
+|||+     |     |
+|||+-----+-----+

---

Something like this?

#define BLOCK_SIZE_X 5
#define BLOCK_SIZE_Y 4

void draw_box(int w, int h) {
    int x, y;
    for (y = 0; y <= h * BLOCK_SIZE_Y; y++) {
        int on_horizontal = !(y % BLOCK_SIZE_Y);
        for(x = 0; x <= w * BLOCK_SIZE_X; x++) {
            int on_vertical = !(x % BLOCK_SIZE_X);
            if (on_horizontal && on_vertical) {
                printf("+");
            } else if (on_horizontal) {
                printf("-");
            } else if (on_vertical) {
                printf("|");
            } else printf(" ");
         }
         printf("\n");
    }
}

---

You forgot to print newlines between rows:

        for (tiny_row = 1; tiny_row < N_ROWS; tiny_row++) {

            printf("%c", row0NoX[strlen(row0NoX)-1]);

            for (col = 0; col < 8; col++) {

                switch (checkerboard[row][col]) {
                    case 0:
                        switch (tiny_row) {
                            case 1:
                                printf("%s", row0NoX);
                                break;
                            case 2:
                            printf("%s", row1NoX);
                            break;
                        case 3:
                            printf("%s", row2NoX);
                            break;
                        case 4:
                            printf("%s", row3NoX);
                            break;
                        case 5:
                            printf("%s", row4NoX);
                            break;
                        default:
                            printf("Error");
                            break;
                    }
                    break;
                }
                // printf("\n"); <-- Not here
            }
            printf("\n") // <-- Here
        }

Also, you forgot to print the line of -'s at the bottom.

---

I think your new problem is in this line:

for (tiny_row = 1; tiny_row < N_ROWS; tiny_row++) {

I'm guessing N_ROWS is initialized to 5.

row4NoX is the line initialized to all ----, but since it is never printed, I'm guessing that tiny_row is never equal to 5, and that for loop sure looks funny.

(I'll never get used to 1-initialized loops in C, but when I see one used with a < test, I assume it is a bug. It might not be the most accurate heuristic in the world, but it's worked well for me so far. :)

The small bit of preachy advice: don't mix variable names and indexes with different numbering schemes. Stick with either 0-indexed or 1-indexed (if you're moving from FORTRAN code :) names, when you try to mix them you often wind up making more mental hurdles than already exist in trying to write reliable software.