c 2b 2b cout iostream

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Clara
21 Oct 2017
1#include <iostream> // for std::cout
2
3//std::cout outputs Strings, numbers and variables to the commandline
4int main()
5{
6  	int x = 1
7    std::cout << "Hello" << " world!\n" << x; 
8  	/* 	outputs: Hello world!
9		1 						*/
10////////////////////////////////////////////////////////////////////////////////////  	
11  	// cout does not make a new line for each call
12  	std::cout << "The answere: ";
13  	std::cout << 42;
14  	/* 	outputs: The answere: 42 */
15///////////////////////////////////////////////////////////////////////////////////  
16  	// std::endl and \n are both newlines
17  	// std::endl adds a newline and makes sure the text gets displayed immediately
18  	// "\n" adds a newline.(cout makes it display immediately by default)
19   	std::cout << "step1" << std::endl
20      		  << "step2" << '\n'
21      		  << "end";
22	/*	outputs: step1
23    			 step2
24                 end */
25//////////////////////////////////////////////////////////////////////////////////
26    return 0;
27}
28
29//The operator << gets overloaded by iostream to change its usage to what you see above