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JotaKa

printf("%.2f); equivalent in C++

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if i wanted to display a float to two decimal places in C++ using cout, how would I go about doing that?

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#include <iostream>

int main()
{
float f = 1.23456;
std::cout.precision(2);
std::cout << f << std::endl;
};
Or
#include <iostream>
#include <iomanip>

int main()
{
float f = 1.23456;
std::cout << std::setprecision(2) << f << std::endl;
};


Note - this is a sticky setting.


“Debugging is twice as hard as writing the code in the first place. Therefore, if you write the code as cleverly as possible, you are, by definition, not smart enough to debug it.”
— Brian W. Kernighan (C programming language co-inventor)

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Isn''t ''double'' 2 behind the point?

Technology can either save us or destroy us. Me ... I say it will destroy us if Microsoft is the example.

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quote:
Original post by Xeneth
Isn''t ''double'' 2 behind the point?

Technology can either save us or destroy us. Me ... I say it will destroy us if Microsoft is the example.


what? perhaps in kentucky it is.

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