While loop

This is a discussion on While loop within the C++ Programming forums, part of the General Programming Boards category; A while loop will only execute while the condition/expression evaluates to true. Is it True?...

  1. #1
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    While loop

    A while loop will only execute while the condition/expression evaluates to true. Is it True?

  2. #2
    Dae
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    What the...

    Yeah, but the condition is only checked each time it loops around.
    Warning: Have doubt in anything I post.

    GCC 4.5, Boost 1.40, Code::Blocks 8.02, Ubuntu 9.10 010001000110000101100101

  3. #3
    and the hat of wrongness Salem's Avatar
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    Code:
    #include <stdio.h>
    int main ( ) {
      while ( 0 ) printf("No it's not\n" );
      return 0;
    }

  4. #4
    Frequently Quite Prolix dwks's Avatar
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    Or, rather:
    Code:
    #include <iostream>
    
    int main(void) {
        while(0) std::cout << "No it's not\n";
    
        return 0;
    }
    dwk

    Seek and ye shall find. quaere et invenies.

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    "Testing can only prove the presence of bugs, not their absence." -- Edsger Dijkstra
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  5. #5
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    you can do
    while(1)
    while(true)
    while(0)
    while(false)
    all mean the same thing basically,
    think you can even do
    while(10000000000000) //just as long as its higher than 1

  6. #6
    Frequently Quite Prolix dwks's Avatar
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    while(1)
    while(true)
    while(0)
    while(false)
    all mean the same thing basically,
    Equal but opposite.
    think you can even do
    while(10000000000000) //just as long as its higher than 1
    You might get something like "number is so long that it is unsigned".

    The question has nothing to do with 10000000000000.
    dwk

    Seek and ye shall find. quaere et invenies.

    "Simplicity does not precede complexity, but follows it." -- Alan Perlis
    "Testing can only prove the presence of bugs, not their absence." -- Edsger Dijkstra
    "The only real mistake is the one from which we learn nothing." -- John Powell


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