Reading a string from the input which length isn't known.

This is a discussion on Reading a string from the input which length isn't known. within the C Programming forums, part of the General Programming Boards category; Hi, I need to read a string from the input but I don't know the length of it. So I ...

  1. #1
    Registered User
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    Reading a string from the input which length isn't known.

    Hi,
    I need to read a string from the input but I don't know the length of it. So I would like to read for example first 100 chars, then next 100 chars and so on, till '\n'. I though about using scanf() in such a form: scanf("%100s", buf); but I don't know the condition to check if the line is over. I can't wait for EOF from scanf() because I have a few lines to read. I don't want to read this string char by char. Can anyone help me?
    --
    Regards,
    apacz

  2. #2
    Gawking at stupidity
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    A good one to use would be fgets(). If it read the whole string, the last character in the string will be a '\n' depending on what input you're using.
    If you understand what you're doing, you're not learning anything.

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