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<wchar_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<wchar_t, char, std::mbstate_t> F; 20 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 = {}; 26 const char* from = "123467890"; 27 assert(f.length(mbs, from, from+10, 0) == 0); 28 assert(f.length(mbs, from, from+10, 9) == 9); 29 assert(f.length(mbs, from, from+10, 10) == 10); 30 assert(f.length(mbs, from, from+10, 11) == 10); 31 assert(f.length(mbs, from, from+10, 100) == 10); 32 } 33
