Reading a Whole Word in C

This is a discussion on Reading a Whole Word in C within the C Programming forums, part of the General Programming Boards category; SOLVED!! Hello, I cannot seem to find a way to get my program to read a WHOLE word and then ...

  1. #1
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    Reading a Whole Word in C

    SOLVED!!


    Hello, I cannot seem to find a way to get my program to read a WHOLE word and then so something according to that word.

    Basically, my program needs to ask the user about 3 options, to multiply, sum, or exit.

    I thought of doing something like this:

    Code:
    scanf("%c", &option);
    switch(option)
      {
             case 'm': printf("%f * %f = %f\n", a,b,c); break;
             ... .... ...
             default : printf("Error!\n); return 0;
      }
    But now, I want it to read the whole word, not the first character, I can't find my way around this, Help!
    Last edited by Chinfrim; 10-19-2008 at 01:55 PM.

  2. #2
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    To read an input string of characters option needs to be an array of characters for ex.
    Code:
    char option[100];
    scanf("%s", option);
    As you need to perform arithmetic operations on your input it's better to make option a variable of type int or float.

  3. #3
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    Quote Originally Posted by itCbitC View Post
    To read an input string of characters option needs to be an array of characters for ex.
    Code:
    char option[100];
    scanf("%s", option);
    As you need to perform arithmetic operations on your input it's better to make option a variable of type int or float.


    Oh.. Dumb Me..

    Thanks, it compiles now and all, had to use some strcmp's to get it working.

    Now to define the algorithm for factorial numbers. (n!)

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