Dev c++ beta 5

[MysticVegeta]

Hi I have just started C++ and i am having a problem with the dev c++ beta 5. When i try to compile and run this code, The DOS window opens up and closes immediately

EDIT: Oh nvm i think it works

[wtd]

That's normal behavior. That window is created specifically to display output from your program. Your program runs very quickly, then quits, and once it's over, the window no longer has a reason to be open.

Now, if you were waiting for the user to do something, like hit enter, it would stay open.

[MysticVegeta]

Yep. i got that thanks!
Oh and by the ways, how do skip a line, like in turing we can

code:

put " "

i tried

code:

cout<<"";

Doesn't work

[Mazer]

In your case, you'd want either:

code:

cout << "[Sometexthere]\n";

OR

code:

cout << "blah blah blah" << endl;

[MysticVegeta]

thanks

[wtd]

You can also always:

c++:

std::cout << std::endl;

There's nothing special about:

code:

<< std::endl

std::endl is just another variable.

[jamonathin]

Yeah the \n works, and as I saw in zylum's maze proggy, and \n skips a line in Turing as well

[wtd]

Yes, because \n is the newline character. However, using std::endl is the more idiomatically correct C++ approach.

[MysticVegeta]

Wow \n works for turing? whew i didnt know that! cool 8)

Anyways what does std:: mean?

[wtd]

MysticVegeta wrote:

Anyways what does std:: mean?

"std" is the name of the standard namespace in C++. The "::" is the namespace resolution operator. It's C++'s way of saying "the variable (or function, or class, or whatever) named endl in the std namespace".

You can see this in action by creating your own namespace.

c++:

#include <iostream> #include <string> namespace foo {    std::string bar("Hello world"); } int main() {    std::cout << foo::bar << std::endl;    return 0; }