如何从字符串文字的串联中形成C ++字符串？

#include <sstream>

std::stringstream s;
s << \"This value shoud be between \" << MIN_VALUE << \" and \" << MAX_VALUE;
message = s.str();

string message(string(\"That value should be between \") + MIN_VALUE + \" and \" + MAX_VALUE);

string()

string::operator+(const char*)

string

operator+

operator+

#include <sstream>
#include <string>

template <typename T>
std::string Str( const T & t ) {
     std::ostringstream os;
     os << t;
     return os.str();
}



std::string message = \"That value should be between \" + Str( MIN_VALUE ) 
                       + \" and \" + Str( MAX_VALUE );

std::stringstream msgstream;
msgstream << \"That value should be between \" << MIN_VALUE << \" and \" <<  MAX_VALUE;
std::string message(msgstream.c_str());