Thread: Am I interpreting this correctly?

Hi folks,

I have an end of chapter question here, that I believe I have solved, but am not sure if I've understood the question correctly in the first place. What do you think this question is asking?

Devise a function chline(ch, i, j) that prints the requested character in columns i through j. Test it in a simple driver.

I interpreted that to mean the user inputting a character, and then the program makes two columns, printing the character i times in the first column & j times in the second column. I came up with this (tested and works a la my interpretation):

Code:

/* exercise 2 in chapter 9 */


#include <stdio.h>
void chline(char x, int y, int z);
char get_first(void);
int get_int(void);
int main(void)
{
    char x;
    int y, z;


    printf("\nPlease enter a character: ");    
    x = get_first();
    
    printf("\nNow please enter integer for column x: ");
    y = get_int();
    
    printf("\nNow please enter integer for column y: ");
    z = get_int();


    chline(x, y, z);


    return 0;
}


void chline(char x, int y, int z)
{
    int i;
    
    printf("\n\tx\t\ty\n");
    printf("\t\b---\t\t\b---\n");
    
    for(i = 0; (i < y) || (i < z); i++)
    {
        if((i < y) && (i < z))
            printf("\t%c\t\t%c\n", x, x);
        else if((i < y) && (i >= z))
            printf("\t%c\n",x);
        else
            printf("\t \t\t%c\n", x);
    }
}


char get_first(void)
{
        int ch;


        ch = getchar();
        while(getchar() != '\n')
                continue;


        return ch;
}


int get_int(void)
{
        int input;
        char ch;


        while (scanf("%d", &input) != 1)
        {
                while((ch = getchar()) != '\n')
                        printf("\n");
                        putchar(ch);
                printf(" is not an integer.\nPlease inter an ");
                printf("integer value, such as 25, -178 or 3:");
        }


        while(getchar() != '\n')
                continue;


        return input;
}

Do you think this is good or am I barkin' up the wrong tree?

Originally Posted by Adak

Yeah, Woof! Woof!

The statement refers to columns i through j, the parameter values for the function. Your program should print the user's char (ch), one time, in each column, i through j, inclusive. So if i was 2 and j was 4, and ch was X, it would look like:

Code:

columns 1 2 3 4 5 6 7
        ============
          X X X

Ohh, I see! That makes a lot more sense, thank you!