Convert float to std::string in C++

Question

I have a float value that needs to be put into a std::string. How do I convert from float to string?

float val = 2.5;
std::string my_val = val;          


        

Answer 1

You can define a template which will work not only just with doubles, but with other types as well.

template  string tostr(const T& t) { 
   ostringstream os; 
   os<

Then you can use it for other types.

double x = 14.4;
int y = 21;

string sx = tostr(x);
string sy = tostr(y);