Really quick question

This is a discussion on Really quick question within the C Programming forums, part of the General Programming Boards category; When you use fseek() and ftell(), I'm wondering when you read a line into a buffer (eg. getline, fgets), when ...

  1. #1
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    Really quick question

    When you use fseek() and ftell(), I'm wondering when you read a line into a buffer (eg. getline, fgets), when you use ftell, does it read the position as the beginning of that line even after called after getline?

  2. #2
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    Oh, and does strstr advance the position in the stream?

    Sorry that these are noobish question, but it's a really hard thing to google for.

  3. #3
    Woof, woof! zacs7's Avatar
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    No and no.

    ftell() will tell you how many bytes you are into the stream, there is really no concept of lines. If you read a "line" with fgets() then ftell() would give you the position after what you just read, ie the file-pointer has moved forward (since you read bytes). strstr() has nothing to do with file streams etc, I assume you mean calling strstr() on a buffer read from a file?

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    yeah, thanks very much for the reply. that's exactly what I was looking for. I wasn't sure

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