Thread: The last character of a string

  1. #1
    Registered User
    Join Date
    Nov 2020

    The last character of a string

    int main()
      int lastDigit;
      char num1[3] = "123";
      lastDigit = strlen(num1) - 1;
      printf("%c", num1[lastDigit]);
      return 0;
    Guys, any idea why this code doesnt work?
    I want to get the last character of the string. In that case its "3"
    Last edited by Salem; 11-06-2020 at 03:03 AM. Reason: Removed eye-bleed colour scheme

  2. #2
    and the hat of int overfl Salem's Avatar
    Join Date
    Aug 2001
    The edge of the known universe
    char num1[3] = "123";
    does NOT have a \0 at the end of it for strlen() to do it's thing properly.

    char num1[4] = "123";
    or better, let the compiler do the work
    char num1[] = "123";
    If you dance barefoot on the broken glass of undefined behaviour, you've got to expect the occasional cut.
    If at first you don't succeed, try writing your phone number on the exam paper.

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