Computer Science Canada Can't use "cout" in seperate functions |
| Author: | sheepo39 [ Fri Dec 11, 2009 5:15 pm ] |
| Post subject: | Can't use "cout" in seperate functions |
I'm a beginning C++ programmer, and I'm reading a book on it and I'm at the part with declaring functions. I understand the whole concept of it and all, but I don't understand why you can't use "cout" instead of "return" to output a value. Like float bodyTempC() { float temperature = 37.0 ; return temperature ; } void bodyTempF() { float temperature = 98.6 ; cout << temperature ; } instead of float bodyTempC() { float temperature = 37.0 ; return temperature ; } float bodyTempF() { float temperature = 98.6 ; return temperature ; } Doing the first will return an error, and won't compile, why is this, I'm fairly confused. |
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| Author: | Tony [ Fri Dec 11, 2009 5:19 pm ] |
| Post subject: | RE:Can\'t use "cout" in seperate functions |
Your compiler will tell you why it doesn't compile. Probably because there is no cout. Did you mean std::cout ? |
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| Author: | HRI [ Wed May 05, 2010 7:50 pm ] |
| Post subject: | Re: Can't use "cout" in seperate functions |
Be sure to put in '#include <iostream>' at the start of the file. Also, the way you're using it, 'using std::cout;' would be a logical statement after the first. That way, you need only type cout rather than std::cout. |
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