(原創) 如何将int,double转std::string? (C/C++) (template)
std::string为library type,而int、double为built-in type,两者无法互转,这里使用function template的方式将int转std::string,将double转std:string。
See Also
(原創) 如何将std::string转int,double? (C/C++) (template)
(原創) 如何將int轉string? (C/C++)
(筆記) 如何將int,double轉字串? (C/C++) (C)
Reference
Bertel Brander, Midgaard, http://home20.inet.tele.dk/midgaard/tipc20050107.html
1/*
2(C) OOMusou 2006 http://oomusou.cnblogs.com
3
4Filename : ArrayToVectorByConstructor.cpp
5Compiler : Visual C++ 8.0
6Description : Demo how to convert any type to string.
7Release : 11/18/2006
8*/
9#include <iostream>
10#include <sstream>
11#include <string>
12
13template <class T>
14std::string ConvertToString(T);
15
16int main() {
17 std::string s;
18
19 // Convert int to std::string
20 int i = 123;
21 s = ConvertToString(i);
22 std::cout << s << std::endl;
23
24 // Convert double to std::string
25 double d = 123.123;
26 s = ConvertToString(d);
27 std::cout << s << std::endl;
28
29 return 0;
30}
31
32template <class T>
33std::string ConvertToString(T value) {
34 std::stringstream ss;
35 ss << value;
36 return ss.str();
37}
2(C) OOMusou 2006 http://oomusou.cnblogs.com
3
4Filename : ArrayToVectorByConstructor.cpp
5Compiler : Visual C++ 8.0
6Description : Demo how to convert any type to string.
7Release : 11/18/2006
8*/
9#include <iostream>
10#include <sstream>
11#include <string>
12
13template <class T>
14std::string ConvertToString(T);
15
16int main() {
17 std::string s;
18
19 // Convert int to std::string
20 int i = 123;
21 s = ConvertToString(i);
22 std::cout << s << std::endl;
23
24 // Convert double to std::string
25 double d = 123.123;
26 s = ConvertToString(d);
27 std::cout << s << std::endl;
28
29 return 0;
30}
31
32template <class T>
33std::string ConvertToString(T value) {
34 std::stringstream ss;
35 ss << value;
36 return ss.str();
37}
See Also
(原創) 如何将std::string转int,double? (C/C++) (template)
(原創) 如何將int轉string? (C/C++)
(筆記) 如何將int,double轉字串? (C/C++) (C)
Reference
Bertel Brander, Midgaard, http://home20.inet.tele.dk/midgaard/tipc20050107.html