C++double转化为string

C++ 将double转化为string

ostringstream sstr;
sstr << b->cost();
cout<<(b->getDescription()+ "$ "+ sstr.str());

// stringcast.h

#ifndef _H_STRING_CAST_

#define _H_STRING_CAST_

#include <string>

#include <sstream>

template <typename T>

std::string string_cast(const T& in)

{

static std::ostringstream stream;

stream.str("");

stream << in;

return stream.str();

}

template <typename T>

T string_cast(const std::string& in)

{

static T out;

std::istringstream s(in);

s >> out;

return out;

}

#endif

You can then just do:

std::string str = string_cast<int>(10);

EDIT. If you use boost, you can also use lexical_cast