C
The library defines three classes: IstringStream, OstringStream, and Stringstream, which are used to perform stream input, output, and input and output operations. With these three types of input, the output operation can be easily converted to data types.
Use the input operation to change the data type IstringStream Stream; string result = "123456"; int N = 0; stream << result; // Enter stream >> n; // output to INTN from the string is equal to 123456
You can use a template to make it more calls universal
Template
DataType CEXP (Const Char * LPSZ) {DATATYPE RET; Assert (LPSZ! = Null); const st: string str (lps); std :: istringstream istr (STR); istr >> Ret; Return Ret;}
Use the output operation to convert various types to String the following is the implementation template template
String CSTR (Const Dattype & Data) {std :: ostringstream ostr; ostr.str ();}
Use example: int i = 0; i = CEXP
("1234"); cout << "i ==" << i << endl;
String strconv; strConv = cstr (1234);
