System() question

[Laxman_Cit]

Is there any method to find what is the error while Executing System() function?

[thelamb]

This is a typical answer that can be found through 2 seconds of googling.

http://www.cplusplus.com/reference/clibrary/cstdlib/system/

Though I generally think calling system() is a bad design, the overhead is massive and mostly there are much better alternatives.

[pspwxp fan]

Be that as it may, sometimes I find it necessary to call system(). Especially when you need to clear the screen.

[thelamb]

Application that use system() to clear the screen are a downright pain in the ass, excuse my language.

As a user of the application, I might have some 'important' information on the console before running the application, if the application 'clears' the screen with system() all of this is gone.

[pspwxp fan]

Application that use system() to clear the screen are a downright pain in the ass, excuse my language.

As a user of the application, I might have some 'important' information on the console before running the application, if the application 'clears' the screen with system() all of this is gone.

Err, and why would you be using system() if you didn't need it?
I said its useful when you need the screen to be cleared. For example, a two player game of hangman, IE:

Player 1 enters the word to be guessed by Player 2,
System("cls"),
Player 2 guesses the word .

;-)

But yeah, i know its a big pain for the processer.

[thelamb]

A lot of people use it, for example to 'pause' the application, or they clear the screen on startup which most of the time gives the problem I stated in my last post.

So all I say is that mostly the use of system() is wrong, except in special cases.