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How to change the precision of STD to string?
In C++11, std:: to_string defaults to 6 decimal places when given an input value of type float or double. What is the recommended, or most elegant, method for changing this precision? This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.
Is there a way to change the precision of to _ string?
There is no way to change the precision via to_string () but the setprecision IO manipulator could be used instead: Nice, but it’d be great to be able to do this without creating a temp string. :/ Especially in a very, very tight inner loop. – 3Dave Feb 1 ’14 at 0:09 isn’t the inner string implicitly moved by being a returned rval?
How many decimal places does STD to string default to?
In C++11, std:: to_string defaults to 6 decimal places when given an input value of type float or double. What is the recommended, or most elegant, method for changing this precision?
What should precision be for double to string conversion?
For example, By default, precision is up to max 6 in stringstream’s double to string conversion. To convert Double to String with Custom Precision set precision in stringstream i.e. Let’s set precision to 2 i.e. If you didn’t find what you were looking, then do suggest us in the comments below. We will be more than happy to add that.
In C++11, std:: to_string defaults to 6 decimal places when given an input value of type float or double. What is the recommended, or most elegant, method for changing this precision? This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.
What does STD : : to _ string ( double ) do?
std::to_string (double) is defined by the standard to just return the same sequence of characters that would be generated by sprintf (buf, “%f”, value). No more, no less, especially no way to tweak the format specifier.
How to set precision to double in ostringstream?
It will force the ostringstream to convert double using fixed-point notation instead of scientific one. For example, By default, precision is up to max 6 in stringstream’s double to string conversion. To convert Double to String with Custom Precision set precision in stringstream i.e. Let’s set precision to 2 i.e.