return something in a void

vrkiller · 02-10-2009, 05:33 PM

well my question is:

if i want to return something from a void how do i do that like:

Code:

void calculater()
{
cout << "5+5=";
return 10;
}
int main()
{
int number=calculater();
cout <<number;
getchar();
}

how?

m37h0d · 02-10-2009, 05:42 PM

you don't. you change the return type

vrkiller · 02-10-2009, 05:46 PM

how cna you give me a clue?

m37h0d · 02-10-2009, 05:49 PM

Code:

int calculator()
{
//...
}

QuestionKing · 02-10-2009, 05:50 PM

You can not do that.

void specifically means no return

if you wan't to return an integer, just declare your function to return an integer:

Code:

int MyFunction()
{
    cout << "My Statement";
    return 10;
}

Also please indent code when you post it.

vrkiller · 02-10-2009, 05:52 PM

oh thx you, can you return a string to?`;D

**sean** · 02-10-2009, 06:00 PM

You can return a pointer to a char, or you could accept a pointer as an argument and manipulate that string.

cpjust · 02-10-2009, 06:21 PM

Quote:

Originally Posted by vrkiller

oh thx you, can you return a string to?`;D

Yes:

Code:

std::string MyFunction()
{
    return "Some String";
}

vrkiller · 02-10-2009, 06:24 PM

ok well then how do i recieve my things i have returned?

man i maybe like this forum

matsp · 02-10-2009, 06:26 PM

Quote:

Originally Posted by vrkiller

ok well then how do i recieve my things i have returned?

man i maybe like this forum

x = function().

As long as x is of the same type as what function returns, or it is something that can be automatically converted (e.g. int to float, float to int, char * to string) it shouldn't cause any problem.

--
Mats

vrkiller · 02-10-2009, 06:35 PM

thx ;D. Thread complete and closed

m37h0d · 02-10-2009, 07:25 PM

you should really do the tutorials.

02-10-2009, 05:33 PM	#1
vrkiller Registered User Join Date: Feb 2009 Posts: 22	return something in a void well my question is: if i want to return something from a void how do i do that like: Code: void calculater() { cout << "5+5="; return 10; } int main() { int number=calculater(); cout <<number; getchar(); } how?
vrkiller is offline

02-10-2009, 05:42 PM	#2
m37h0d 3735928559 Join Date: Mar 2008 Posts: 662	you don't. you change the return type
m37h0d is offline

02-10-2009, 05:46 PM	#3
vrkiller Registered User Join Date: Feb 2009 Posts: 22	how cna you give me a clue?
vrkiller is offline

02-10-2009, 05:49 PM	#4
m37h0d 3735928559 Join Date: Mar 2008 Posts: 662	Code: int calculator() { //... }
m37h0d is offline

02-10-2009, 05:50 PM	#5
QuestionKing Registered User Join Date: Jan 2009 Posts: 27	You can not do that. void specifically means no return if you wan't to return an integer, just declare your function to return an integer: Code: int MyFunction() { cout << "My Statement"; return 10; } Also please indent code when you post it.
QuestionKing is offline

02-10-2009, 05:52 PM	#6
vrkiller Registered User Join Date: Feb 2009 Posts: 22	oh thx you, can you return a string to?`;D
vrkiller is offline

02-10-2009, 06:00 PM	#7
sean Super Moderator Join Date: Sep 2001 Posts: 4,680	You can return a pointer to a char, or you could accept a pointer as an argument and manipulate that string.
sean is offline

02-10-2009, 06:24 PM	#9
vrkiller Registered User Join Date: Feb 2009 Posts: 22	ok well then how do i recieve my things i have returned? man i maybe like this forum
vrkiller is offline

02-10-2009, 06:35 PM	#11
vrkiller Registered User Join Date: Feb 2009 Posts: 22	thx ;D. Thread complete and closed
vrkiller is offline

02-10-2009, 07:25 PM	#12
m37h0d 3735928559 Join Date: Mar 2008 Posts: 662	you should really do the tutorials.
m37h0d is offline

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