Simple question with scanf()

This is a discussion on Simple question with scanf() within the C Programming forums, part of the General Programming Boards category; Let's say that I want scanf to process the following text balance = 100 How do I skip over the ...

  1. #1
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    Simple question with scanf()

    Let's say that I want scanf to process the following text

    balance = 100

    How do I skip over the word balance and the equal sign and capture only 100 and place it into an integer variable x?

    Thanks.

    Pier.

  2. #2
    and the Hat of Clumsiness GanglyLamb's Avatar
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    i should read the whole thing with fgets and then convert the string with sscanf (+check for succesfull conversion)

  3. #3
    Registered User Cela's Avatar
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    >>Let's say that I want scanf to process the following text
    You'll have fewer headaches if you don't consider using scanf, ever. Reading the whole line with fgets and then breaking it up with sscanf is much nicer. :-)
    Code:
    #include <stdio.h>
    
    int main(void)
    {
      int num;
      char string[100];
    
      /* Assume :string:ws:char:ws:number: */
      if (fgets(string, 100, stdin) == 0)
      {
        return 1;
      }
      else if (sscanf(string, "%*s %*c %d", &num) == 1)
      {
        printf("Num -- %d\n", num);
      }
    
      return 0;
    }
    But if you really have to do it the ugly way, it's not much different.
    Code:
    #include <stdio.h>
    
    int main(void)
    {
      int num;
    
      /* Assume :string:ws:char:ws:number: */
      if (scanf("%*s %*c %d", &num) == 1)
      {
        printf("Num -- %d\n", num);
      }
    
      return 0;
    }
    *Cela*

  4. #4
    Registered User
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    Thanks a lot guys

    Pier.

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