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 // const charT* data() const; 13 // charT* data(); // C++17 14 15 #include <string> 16 #include <cassert> 17 18 #include "test_macros.h" 19 #include "min_allocator.h" 20 21 template <class S> 22 void 23 test_const(const S& s) 24 { 25 typedef typename S::traits_type T; 26 const typename S::value_type* str = s.data(); 27 if (s.size() > 0) 28 { 29 assert(T::compare(str, &s[0], s.size()) == 0); 30 assert(T::eq(str[s.size()], typename S::value_type())); 31 } 32 else 33 assert(T::eq(str[0], typename S::value_type())); 34 } 35 36 template <class S> 37 void 38 test_nonconst(S& s) 39 { 40 typedef typename S::traits_type T; 41 typename S::value_type* str = s.data(); 42 if (s.size() > 0) 43 { 44 assert(T::compare(str, &s[0], s.size()) == 0); 45 assert(T::eq(str[s.size()], typename S::value_type())); 46 } 47 else 48 assert(T::eq(str[0], typename S::value_type())); 49 } 50 51 int main() 52 { 53 { 54 typedef std::string S; 55 test_const(S("")); 56 test_const(S("abcde")); 57 test_const(S("abcdefghij")); 58 test_const(S("abcdefghijklmnopqrst")); 59 } 60 #if TEST_STD_VER >= 11 61 { 62 typedef std::basic_string<char, std::char_traits<char>, min_allocator<char>> S; 63 test_const(S("")); 64 test_const(S("abcde")); 65 test_const(S("abcdefghij")); 66 test_const(S("abcdefghijklmnopqrst")); 67 } 68 #endif 69 #if TEST_STD_VER > 14 70 { 71 typedef std::string S; 72 S s1(""); test_nonconst(s1); 73 S s2("abcde"); test_nonconst(s2); 74 S s3("abcdefghij"); test_nonconst(s3); 75 S s4("abcdefghijklmnopqrst"); test_nonconst(s4); 76 } 77 #endif 78 } 79
