fputs

This is a discussion on fputs within the C Programming forums, part of the General Programming Boards category; I understand that fgets is the best for user input, comparing with scanf and gets. What is going on with ...

  1. #1
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    fputs

    I understand that fgets is the best for user input, comparing with scanf and gets. What is going on with the output? Is puts safe to use, and how much data this function can handle? If you use fputs the output is redirected only to the file, or you can redirect it to somewhere else? This is a lot of questions I apologize.

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    fputs() is certainly safe to use and is actually faster than fprintf(). There's no limit to how much data it can handle. The second argument to fputs() is the stream you want to write to, so if you do fputs("This is text.", stdout); it will send it to the screen, which is the same thing as just calling puts(). Anyway, fputs() can write to any stream.

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    I understand that fgets is the best for user input, comparing with scanf and gets.
    Well it depends what input you are reading in..
    if your reading a line of input that has spaces and stuff then fgets is pretty good...
    but if your reading in one string, then i prefer scanf because it doesnt keep the trailing '\n' wehre fgets does...

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    Quote Originally Posted by paperbox005
    Well it depends what input you are reading in..
    if your reading a line of input that has spaces and stuff then fgets is pretty good...
    but if your reading in one string, then i prefer scanf because it doesnt keep the trailing '\n' wehre fgets does...
    It may not pull the \n off the input buffer, but a lot of times you have to remove it from the input buffer after the scanf() call.

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    yeah it might stick inthe input buffer, but it aint in the string.

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    Quote Originally Posted by itsme86
    The second argument to fputs() is the stream you want to write to, so if you do fputs("This is text.", stdout); it will send it to the screen, which is the same thing as just calling puts().
    There is a diffference. puts() adds a trailing '\n', while fputs() does not.
    Emmanuel Delahaye

    "C is a sharp tool"

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    As far as the program is concerned, there is no problem with using puts() or fputs()

    The only real problem is filling up the file system if you write a lot of data, but that is true no matter what file writing functions you call.

    If you try and write binary data to stdout, you could probably lock up your terminal session if it understands ANSI escape sequences. That doesn't affect your program, only your ability to control it.

    > and how much data this function can handle?
    Both stop at the first \0 in the buffer you supply.
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