CODE:

#define _CRT_SECURE_NO_DEPRECATE

#include "connect.h"

int main(){
	int inum = 2525;
	float fnum = 2525;
	double dnum = 2525.2525;

	printf(cnct()

using namespace std;

#ifndef _FTOS_
#define _FTOS_
string ftos(double num){
	char media[33];
	sprintf(media, "%f", num);
	string str = media;
	return str;
}
#endif

#ifndef _ITOS_
#define _ITOS_
string itos(int val, int radix = 10){
	char recep[33];
	string output = _itoa(val, recep, radix);
	return output;
}
#endif

#ifndef _CONNECT_
#define _CONNECT_

class forCNCTclass{
	string mystr;

public:

	string & content(){ return mystr; }

	forCNCTclass & operator<< (int rnum){
		mystr.append(itos(rnum) );
		return *this;
	}
	forCNCTclass & operator<< (double rnum){
		mystr.append(ftos(rnum) );
		return *this;
	}
	forCNCTclass & operator<< (string &str){
		mystr.append(str);
		return *this;
	}
	forCNCTclass & operator<< (const char *str){
		mystr.append(str);
		return *this;
	}
	forCNCTclass & operator<< (forCNCTclass &fcc){
		mystr.append(fcc.content() );
		return *this;
	}

	const char * operator<<= (int rnum){
		mystr.append(itos(rnum) );
		return mystr.c_str();
	}
	const char * operator<<= (double rnum){
		mystr.append(ftos(rnum) );
		return mystr.c_str();
	}
	const char * operator<<= (string &str){
		mystr.append(str);
		return mystr.c_str();
	}
	const char * operator<<= (const char *str){
		mystr.append(str);
		return mystr.c_str();
	}
	const char * operator<<= (forCNCTclass &fcc){
		mystr.append(fcc.content() );
		return mystr.c_str();
	}

	const char * operator< (int rnum){
		mystr.append(itos(rnum) );
		return mystr.c_str();
	}
	const char * operator< (double rnum){
		mystr.append(ftos(rnum) );
		return mystr.c_str();
	}
	const char * operator< (string &str){
		mystr.append(str);
		return mystr.c_str();
	}
	const char * operator< (const char *str){
		mystr.append(str);
		return mystr.c_str();
	}
	const char * operator< (forCNCTclass &fcc){
		mystr.append(fcc.content() );
		return mystr.c_str();
	}
};

forCNCTclass cnct(){
	forCNCTclass fcc;
	return fcc;
}

#endif

CODE:

operator “型名” ();

CODE:

#include 

class TempObjTest
{
public:
	TempObjTest(int i) : i(i)
	{
		std::cout << "constructor" << i << std::endl;
	}
	~TempObjTest()
	{
		std::cout << "destructor" << i << std::endl;
	}
private:
	int i;
};

int main()
{
	std::cout << "[test1]" << std::endl;
	// 生成されてすぐ破棄される
	TempObjTest(1);
	
	std::cout << "[test2]" << std::endl;
	// 一時オブジェクトを束縛
	const TempObjTest &temp1 = TempObjTest(2);

	// C++11対応なら
	//std::cout << "[test3]" << std::endl;
	//TempObjTest &&temp2 = TempObjTest(3);

	std::cout << "[test4]" << std::endl;
	// 2よりも先に破棄される
	TempObjTest(4);

	return 0;
}