1 //===----------------------------------------------------------------------===//
2 //
3 // The LLVM Compiler Infrastructure
4 //
5 // This file is dual licensed under the MIT and the University of Illinois Open
6 // Source Licenses. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9
10 // <string>
11
12 // template<> struct char_traits<wchar_t>
13
14 // static char_type* copy(char_type* s1, const char_type* s2, size_t n);
15
16 #include <string>
17 #include <cassert>
18
main()19 int main()
20 {
21 wchar_t s1[] = {1, 2, 3};
22 wchar_t s2[3] = {0};
23 assert(std::char_traits<wchar_t>::copy(s2, s1, 3) == s2);
24 assert(s2[0] == wchar_t(1));
25 assert(s2[1] == wchar_t(2));
26 assert(s2[2] == wchar_t(3));
27 assert(std::char_traits<wchar_t>::copy(NULL, s1, 0) == NULL);
28 assert(std::char_traits<wchar_t>::copy(s1, NULL, 0) == s1);
29 }
30