C language pause program

Last edited by GReaper; at AM. Devoted my life to programming Re: system "pause". Originally Posted by GReaper.

Don't worry, with practice and experience you will understand how things work soon enough. If not, you're always welcome to ask, assuming you couldn't get your answer from some tutorial or article. It really depends on how you decide to run your program.

In the IDE. Most IDE's eg recent versions of code::blocks automatically hold the console window open when the process exits. Here you will find the extra 'press a key to continue' somewhat amusing since you'll get prompted twice. By double clicking on the. This is the only case where you have to worry about premature window closure.

Apparently the original author has never heard of an optimizing compiler Helpful 4 Not Helpful 1. If you are using the for-loop, the compiler may optimize the code, and, because the loop does nothing, remove it. This doesn't happen when using delay. Helpful 2 Not Helpful 0. Note that when using the for-loop technique, you might need a very big span for i, because an empty statement is executed very fast.

Such big numbers may not fit in an integer type. Helpful 3 Not Helpful 1. You Might Also Like How to. How to. Co-authors: Updated: August 11, Categories: C Programming Languages. Thanks to all authors for creating a page that has been read , times. Is this article up to date? Cookies make wikiHow better. By continuing to use our site, you agree to our cookie policy. About This Article.

Featured Articles How to. Trending Articles How to. New Pages How to. Watch Articles How to. This function also doesn't delete the buffers before closing the program neither does it clears the buffer. Now notice that the prototype of this statement is quiet different from the ones we saw recently.

So , whats the importance of the argument passed in the above function prototype and what exactly does that indicate? If system is called with a nullpointer,it will return non-zero if a command processor is present, and zero otherwise. In simple words it means we can pass the commands that can be passed using the terminal of Operating System and returns the command after the execution is done.

The getenv function returns a pointer to environmental information associated with the string pointed to by name in the implementation-defined environmental information table. The string returned must never be changed by the program. Return value when it gets successfully executed this function shall return a pointer to a string containing the value for the specified name.