how to format it for scientific number output?

[kathy]

I have code:

std::stringstream sStream;
double pi = 3.14159;

....
sStream << pi; //?????????????
std::str = sStream.str(); //I want str show the scientific format.

 

[Victor Bazarov]

I have code:

std::stringstream sStream;
double pi = 3.14159;

...
sStream << pi; //?????????????
std::str = sStream.str(); //I want str show the scientific format.

See <ios> and 'std::scientific'.

V