General question

This is a discussion on General question within the C Programming forums, part of the General Programming Boards category; I have a teacher, he does not know what he's doing. so I have a question for you. when you ...

  1. #1
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    Question General question

    I have a teacher, he does not know what he's doing.

    so I have a question for you.

    when you use switch statements.

    sometimes you need to write like this code before you start write the cases.

    I haven't used it, I try to avoid it in my programs.

    Code:
    switch ( x /= 200)
    or
    switch ( x % 200)
    can I ask you guys, is there any website or a thread on this forum tell me how I can use ( % ) or ( /=) , etc.

    thanks

  2. #2
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    x /= 200 will change x to x / 200, and then switch on that value.

    x % 200 calculates the remainder of x divided by 200.

    --
    Mats
    Compilers can produce warnings - make the compiler programmers happy: Use them!
    Please don't PM me for help - and no, I don't do help over instant messengers.

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    Thanks
    Is there any condition I have to know?

  4. #4
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    Quote Originally Posted by saudi-vip View Post
    Thanks
    Is there any condition I have to know?
    Condition for what?

    --
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    Compilers can produce warnings - make the compiler programmers happy: Use them!
    Please don't PM me for help - and no, I don't do help over instant messengers.

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    I mean ( /= and % )
    i know these two is there any

  6. #6
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    Compilers can produce warnings - make the compiler programmers happy: Use them!
    Please don't PM me for help - and no, I don't do help over instant messengers.

  7. #7
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    yes.
    I have problem with names too.
    this is the first semester for me studying C.
    so, I don't know what you called them.

  8. #8
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    thanks Mats

  9. #9
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    Maybe you should also find a better teacher if he can't even answer a simple question like that.
    "I am probably the laziest programmer on the planet, a fact with which anyone who has ever seen my code will agree." - esbo, 11/15/2008

    "the internet is a scary place to be thats why i dont use it much." - billet, 03/17/2010

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    I don't trust him,
    so I would like to ask you guys before doing something stupid ,

  11. #11
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    switch ( x /= 200) != switch(x / 200)

    I think the left-most one will get your code doing crazy crap that you didn't want. Though I can't pretend like I know that for sure.

  12. #12
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    that's right.
    C programming drives me crazy with its crazy crap.

    thanks

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