Using Checks in C - Help!

This is a discussion on Using Checks in C - Help! within the C Programming forums, part of the General Programming Boards category; hi, friend of mine did coding for checks because i had to submit project yesterday but today when i was ...

  1. #1
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    Using Checks in C - Help!

    hi,

    friend of mine did coding for checks because i had to submit project yesterday but today when i was check how he did it i am unable to understand

    also what is isdigit


    here is the code:

    Code:
    int checkNumber(char [], int);
    int checkLetters(char []);
    
    ----------------------
    
    int checkNumber(char number[], int allowDots) {
        
        for (int i = 0; i < strlen(number); i++) {    
        
            if (!allowDots)
        
            if (!isdigit(number[i]))
        
            return 0;
        
        }
        
        return 1;
    
    }
    
    int checkLetters(char string[]) {
        
        for (int i = 0; i < strlen(string); i++) {    
              
               if (isdigit(string[i]))
              
                  return 0;
        
        }
        
        return 1;
    
    }

  2. #2
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  3. #3
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    deadplanet, yes i know how while and loop statement works.

  4. #4
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    Then use some sample input and go through it on pen and paper, writing down the new values of the variables at each line.

  5. #5
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    rather than ask 'what is 'isdigit' here' and hope for a reply, why not google isdigit and find the answer in about 5 seconds with no waiting

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