Thread: Help again

Here I have already written the code which prints the rightmost integer of a float number, however when I run the program and put in a number, the program closes immediately. Can anyone help me fix this problem?

Code:

#include <stdio.h>
int main (void)
{
    // Local Declarations
    int fltNum;
    int oneDigit;
    
    // Statements
    printf("Please enter in a float number: ");
    (float)fltNum;
    scanf("%d", &fltNum);
    
    oneDigit = fltNum % 10;
    printf("\nThe right digit is: %d", oneDigit);
    scanf("%d", &oneDigit);
    int temp;

    printf("Enter an integer and press Enter to exit the program: ");

    scanf("%d", &temp);
    
    return 0;
    
}

Code:

(float)fltNum;

This statement has no effect. It doesn't magically turn fltNum into a float, just casts it, but you don't do anything with the value after casting it. Get rid of it.

Code:

scanf("%d", &oneDigit);

Read the scanf documentation, I feel you are greatly misunderstanding it's use (cf you previous post). The above line scans the input stream for an integer, and stop when it finds some non-integer characters. If you type 123.45, all it grabs is 123. You then have ".45" left in the input buffer. When you do the following scanf("%d", temp), scanf skips the . and reads 45 as an int, puts it in temp and exits your program.

Also, you can use fgets in combination with sscanf to avoid some of these problems.

I keep getting errors. The only problem is that the program closes immediately and I did remove the scanf("%d",temp)

Did you read the docs? I didn't say to remove the scanf("%d", &temp), I implied that the "%d" isn't doing what you think it's doing, i.e. it's not scanning for a float. Here's the man page for scanf, so you can understand the different format string specifiers.