cout help!

This is a discussion on cout help! within the C++ Programming forums, part of the General Programming Boards category; Okay so I am new to c++ and have a quick question. After looking at the code below I don't ...

  1. #1
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    cout help!

    Okay so I am new to c++ and have a quick question. After looking at the code below I don't understand how to print x to 17.00. I know they are sticky flags I keep using them to demonstrate but why does the 2nd or 3rd line of code not produce 17.00 they produce the output below the code. HELP!!!!
    Code:
    #include <iostream>
    #include <iomanip>
    
    int main(void)
    {
    	double x = 17;
    
    	std::cout << x << std::endl;
    	std::cout << std::setprecision(2) << x << std::endl;
    	std::cout << std::showpoint << std::setprecision(2) << x << std::endl;
    	std::cout << std::noshowpoint << std::setprecision(2) << x << std::endl;
    
    	return 0;
    }
    Code:
    17
    17
    17.
    17
    Press any key to continue...

  2. #2
    Master Apprentice phantomotap's Avatar
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    You've only told it to use as much precision as it needs so long as it only needs two or less.

    If you want a fixed format you should probably read the documentation.

    Soma

  3. #3
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    Quote Originally Posted by phantomotap View Post
    You've only told it to use as much precision as it needs so long as it only needs two or less.

    If you want a fixed format you should probably read the documentation.

    Soma
    Thanks

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