17112dae6acac544a0271a85d95342c583441e2d1Dan Albert//===----------------------------------------------------------------------===// 27112dae6acac544a0271a85d95342c583441e2d1Dan Albert// 37112dae6acac544a0271a85d95342c583441e2d1Dan Albert// The LLVM Compiler Infrastructure 47112dae6acac544a0271a85d95342c583441e2d1Dan Albert// 57112dae6acac544a0271a85d95342c583441e2d1Dan Albert// This file is dual licensed under the MIT and the University of Illinois Open 67112dae6acac544a0271a85d95342c583441e2d1Dan Albert// Source Licenses. See LICENSE.TXT for details. 77112dae6acac544a0271a85d95342c583441e2d1Dan Albert// 87112dae6acac544a0271a85d95342c583441e2d1Dan Albert//===----------------------------------------------------------------------===// 97112dae6acac544a0271a85d95342c583441e2d1Dan Albert 107112dae6acac544a0271a85d95342c583441e2d1Dan Albert// <string_view> 117112dae6acac544a0271a85d95342c583441e2d1Dan Albert 127112dae6acac544a0271a85d95342c583441e2d1Dan Albert// const_iterator rbegin() const; 137112dae6acac544a0271a85d95342c583441e2d1Dan Albert 147112dae6acac544a0271a85d95342c583441e2d1Dan Albert#include <experimental/string_view> 157112dae6acac544a0271a85d95342c583441e2d1Dan Albert#include <cassert> 167112dae6acac544a0271a85d95342c583441e2d1Dan Albert 177112dae6acac544a0271a85d95342c583441e2d1Dan Alberttemplate <class S> 187112dae6acac544a0271a85d95342c583441e2d1Dan Albertvoid 197112dae6acac544a0271a85d95342c583441e2d1Dan Alberttest(S s) 207112dae6acac544a0271a85d95342c583441e2d1Dan Albert{ 217112dae6acac544a0271a85d95342c583441e2d1Dan Albert const S& cs = s; 227112dae6acac544a0271a85d95342c583441e2d1Dan Albert typename S::reverse_iterator b = s.rbegin(); 237112dae6acac544a0271a85d95342c583441e2d1Dan Albert typename S::const_reverse_iterator cb1 = cs.rbegin(); 247112dae6acac544a0271a85d95342c583441e2d1Dan Albert typename S::const_reverse_iterator cb2 = s.crbegin(); 257112dae6acac544a0271a85d95342c583441e2d1Dan Albert if (!s.empty()) 267112dae6acac544a0271a85d95342c583441e2d1Dan Albert { 277112dae6acac544a0271a85d95342c583441e2d1Dan Albert const size_t last = s.size() - 1; 287112dae6acac544a0271a85d95342c583441e2d1Dan Albert assert( *b == s[last]); 297112dae6acac544a0271a85d95342c583441e2d1Dan Albert assert( &*b == &s[last]); 307112dae6acac544a0271a85d95342c583441e2d1Dan Albert assert( *cb1 == s[last]); 317112dae6acac544a0271a85d95342c583441e2d1Dan Albert assert(&*cb1 == &s[last]); 327112dae6acac544a0271a85d95342c583441e2d1Dan Albert assert( *cb2 == s[last]); 337112dae6acac544a0271a85d95342c583441e2d1Dan Albert assert(&*cb2 == &s[last]); 347112dae6acac544a0271a85d95342c583441e2d1Dan Albert 357112dae6acac544a0271a85d95342c583441e2d1Dan Albert } 367112dae6acac544a0271a85d95342c583441e2d1Dan Albert assert( b == cb1); 377112dae6acac544a0271a85d95342c583441e2d1Dan Albert assert( b == cb2); 387112dae6acac544a0271a85d95342c583441e2d1Dan Albert assert(cb1 == cb2); 397112dae6acac544a0271a85d95342c583441e2d1Dan Albert} 407112dae6acac544a0271a85d95342c583441e2d1Dan Albert 417112dae6acac544a0271a85d95342c583441e2d1Dan Albert 427112dae6acac544a0271a85d95342c583441e2d1Dan Albertint main() 437112dae6acac544a0271a85d95342c583441e2d1Dan Albert{ 447112dae6acac544a0271a85d95342c583441e2d1Dan Albert typedef std::experimental::string_view string_view; 457112dae6acac544a0271a85d95342c583441e2d1Dan Albert typedef std::experimental::u16string_view u16string_view; 467112dae6acac544a0271a85d95342c583441e2d1Dan Albert typedef std::experimental::u32string_view u32string_view; 477112dae6acac544a0271a85d95342c583441e2d1Dan Albert typedef std::experimental::wstring_view wstring_view; 487112dae6acac544a0271a85d95342c583441e2d1Dan Albert 497112dae6acac544a0271a85d95342c583441e2d1Dan Albert test(string_view ()); 507112dae6acac544a0271a85d95342c583441e2d1Dan Albert test(u16string_view()); 517112dae6acac544a0271a85d95342c583441e2d1Dan Albert test(u32string_view()); 527112dae6acac544a0271a85d95342c583441e2d1Dan Albert test(wstring_view ()); 537112dae6acac544a0271a85d95342c583441e2d1Dan Albert test(string_view ( "123")); 547112dae6acac544a0271a85d95342c583441e2d1Dan Albert test(wstring_view (L"123")); 557112dae6acac544a0271a85d95342c583441e2d1Dan Albert#if __cplusplus >= 201103L 567112dae6acac544a0271a85d95342c583441e2d1Dan Albert test(u16string_view{u"123"}); 577112dae6acac544a0271a85d95342c583441e2d1Dan Albert test(u32string_view{U"123"}); 587112dae6acac544a0271a85d95342c583441e2d1Dan Albert#endif 597112dae6acac544a0271a85d95342c583441e2d1Dan Albert} 60