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<char32_t>
13
14 // static char_type* move(char_type* s1, const char_type* s2, size_t n);
15
16 #include <string>
17 #include <cassert>
18
main()19 int main()
20 {
21 #ifndef _LIBCPP_HAS_NO_UNICODE_CHARS
22 char32_t s1[] = {1, 2, 3};
23 assert(std::char_traits<char32_t>::move(s1, s1+1, 2) == s1);
24 assert(s1[0] == char32_t(2));
25 assert(s1[1] == char32_t(3));
26 assert(s1[2] == char32_t(3));
27 s1[2] = char32_t(0);
28 assert(std::char_traits<char32_t>::move(s1+1, s1, 2) == s1+1);
29 assert(s1[0] == char32_t(2));
30 assert(s1[1] == char32_t(2));
31 assert(s1[2] == char32_t(3));
32 assert(std::char_traits<char32_t>::move(NULL, s1, 0) == NULL);
33 assert(std::char_traits<char32_t>::move(s1, NULL, 0) == s1);
34 #endif // _LIBCPP_HAS_NO_UNICODE_CHARS
35 }
36