8viii.cpp

C/C++程序设计导论（第二版）》程序源文件

// CurrentlyTaking()  Test if newdrug is in the file "temp.txt"
// IN: contradrug is a drug the patient should not take.
int CurrentlyTaking (int contradrug)
{	int currently_taking, found = 0;
	ifstream fin ("temp.txt", ios::in);
	while (fin >> currently_taking && !found)
		if (currently_taking == contradrug)
			found = 1;
	fin.close();		// close so file might be re-opened in a subsequent call
	return (found);
}