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  2. Difference between "while" loop and "do while" loop

    stackoverflow.com/questions/3625759

    0. The most important difference between while and do-while loop is that in do-while, the block of code is executed at least once, even though the condition given is false. To put it in a different way : While- your condition is at the begin of the loop block, and makes possible to never enter the loop.

  3. Read the Structured Program Theorem. A do {} while () can always be rewritten to while () do {}. Sequence, selection, and iteration are all that's ever needed. Since whatever is contained in the loop body can always be encapsulated into a routine, the dirtiness of having to use while () do {} need never get worse than.

  4. In the for loop, you have no idea. The loop counter i may be changed in the loop. A break may be hidden inside as well. By shirking this break statement and embedding the logic in shouldDispenseGas, you immediately understand the conditions under which the loop will continue, and end.

  5. c++ - Do if(){ } while() statement - Stack Overflow

    stackoverflow.com/questions/31697968

    According to C++14 standard, §6.5 Iteration statements: do statement while ( expression ); Where statement can be:

  6. Endless loop in C/C++ - Stack Overflow

    stackoverflow.com/questions/20186809

    The idiom designed into the C language (and inherited into C++) for infinite looping is for(;;): the omission of a test form. The do/while and while loops do not have this special feature; their test expressions are mandatory. for(;;) does not express "loop while some condition is true that happens to always be true".

  7. The "do {} while (false)" with a "break" can be used to skip to the end of the code block should something that would normally warrant an exception be encountered in the loop. I have also sen this construct used in shops where the "single return per function" ideology is enforced.

  8. C++ do while loop - Stack Overflow

    stackoverflow.com/questions/16022402

    The logic of the code works well in my head - but debugging the code the object just gets stuck in the loop, and stay in the same position. 'A' is supposed to move about the screen, but it stays still! When I comment out the Do while loop, and move the 'MoveObject()' Function up the code works perfectly the 'A's are moving about the screen.

  9. How does reading file with while loops work in C++?

    stackoverflow.com/questions/14009737

    Why is it possible to read a file using a while loop such as while (file >> variable) Or while (getline(xx, yy)) Do the >> and getline functions return boolean values ?

  10. Your while( n >= 4 || n <= 10) condition will always be true. You should go with while (n <= 4 || n >= 10). There are a few ways to solve your problem, like it was already posted here. I would go with a continue statement, like slacker said, but be sure to change your while condition, otherwise it won`t work. It would be something like this:

  11. Assuming choice isn't 99 entering the loop -- which seems to be a possibility here -- the while loop could be simplified to "while(true)" – Drew Dormann Commented May 17, 2009 at 20:47