Formatting fprintf

This is a discussion on Formatting fprintf within the C Programming forums, part of the General Programming Boards category; Hello, Let me first say I did search the forum as well as google and could not find exactly what ...

  1. #1
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    Formatting fprintf

    Hello,
    Let me first say I did search the forum as well as google and could not find exactly what I wanted to know.

    What I want to do is say I have the string "Hello World". How would I say use fprintf to just output "World", or even "ello Wor" to the file I am writing to?

    Also is there a way to compare parts of a string such as if I have two strings in an array like "Hello World" "Hello Earth" and I only wanted to fprintf the strings that ended with "Earth". Thank you.

  2. #2
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    You should look at the functions available in string.h (The C Standard Library - a good reference). You should use them to edit the string however you want, and then output the new string with fprintf.

    For instance, you could use strtok() to break it up into words.

  3. #3
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    The problem I feel i'll run into with tokenizing is that I need to compare a list of last names and if the name is one I am looking for I need to print the first name and date of birth that go with it. The input file is separated by spaces so names such as "Van Wilder" will go into multiple tokens.

    The input file will look like:

    John Doe May 30 1977
    Chris Van Wilder June 07 2008

    THanks

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