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 // <locale>
11
12 // template <> class codecvt<char16_t, char, mbstate_t>
13
14 // int length(stateT& state, const externT* from, const externT* from_end, size_t max) const;
15
16 #include <locale>
17 #include <cassert>
18
19 typedef std::codecvt<char16_t, char, std::mbstate_t> F;
20
main()21 int main()
22 {
23 std::locale l = std::locale::classic();
24 const F& f = std::use_facet<F>(l);
25 std::mbstate_t mbs = {0};
26 const char from[] = "some text";
27 assert(f.length(mbs, from, from+10, 0) == 0);
28 assert(f.length(mbs, from, from+10, 8) == 8);
29 assert(f.length(mbs, from, from+10, 9) == 9);
30 assert(f.length(mbs, from, from+10, 10) == 10);
31 assert(f.length(mbs, from, from+10, 100) == 10);
32 }
33