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 // wbuffer_convert<Codecvt, Elem, Tr> 13 14 // wbuffer_convert(streambuf *bytebuf = 0, Codecvt *pcvt = new Codecvt, 15 // state_type state = state_type()); 16 17 #include <locale> 18 #include <codecvt> 19 #include <sstream> 20 #include <cassert> 21 #include <new> 22 23 int new_called = 0; 24 25 void* operator new(std::size_t s) throw(std::bad_alloc) 26 { 27 ++new_called; 28 return std::malloc(s); 29 } 30 31 void operator delete(void* p) throw() 32 { 33 --new_called; 34 std::free(p); 35 } 36 37 int main() 38 { 39 typedef std::wbuffer_convert<std::codecvt_utf8<wchar_t> > B; 40 { 41 B b; 42 assert(b.rdbuf() == nullptr); 43 assert(new_called != 0); 44 } 45 assert(new_called == 0); 46 { 47 std::stringstream s; 48 B b(s.rdbuf()); 49 assert(b.rdbuf() == s.rdbuf()); 50 assert(new_called != 0); 51 } 52 assert(new_called == 0); 53 { 54 std::stringstream s; 55 B b(s.rdbuf(), new std::codecvt_utf8<wchar_t>); 56 assert(b.rdbuf() == s.rdbuf()); 57 assert(new_called != 0); 58 } 59 assert(new_called == 0); 60 { 61 std::stringstream s; 62 B b(s.rdbuf(), new std::codecvt_utf8<wchar_t>, std::mbstate_t()); 63 assert(b.rdbuf() == s.rdbuf()); 64 assert(new_called != 0); 65 } 66 assert(new_called == 0); 67 } 68
