Casting to std::string

[moetman]

Hi all,
I want to concatenate strings ans doubles into one string How do I cast a double to std::string ? Is there any way to use std::strings like osstringstream ? In the same way as os<<aDouble ?

Regards

 

[uolj]

You don't cast doubles to strings, you convert them using a stringstream and then copy the contents of the stringstream to the string:

double d = 3.3;
std::ostringstream os;
os << d;
std::string s = os.str();

 

[moetman]

Thanks uolj

 

[timmay3141]

You may also find it useful to use sprintf:

char buf[128];
double d = 3.3;
sprintf(buf, "%g", d);

string str = buf;