Home | History | Annotate | Download | only in string.cons 
      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 // explicit basic_string(basic_string_view<CharT, traits> sv, const Allocator& a = Allocator());
     13 
     14 #include <string>
     15 #include <string_view>
     16 #include <stdexcept>
     17 #include <algorithm>
     18 #include <cassert>
     19 
     20 #include "test_macros.h"
     21 #include "test_allocator.h"
     22 #include "min_allocator.h"
     23 
     24 template <class charT>
     25 void
     26 test(std::basic_string_view<charT> sv)
     27 {
     28     typedef std::basic_string<charT, std::char_traits<charT>, test_allocator<charT> > S;
     29     typedef typename S::traits_type T;
     30     typedef typename S::allocator_type A;
     31   {
     32     S s2(sv);
     33     LIBCPP_ASSERT(s2.__invariants());
     34     assert(s2.size() == sv.size());
     35     assert(T::compare(s2.data(), sv.data(), sv.size()) == 0);
     36     assert(s2.get_allocator() == A());
     37     assert(s2.capacity() >= s2.size());
     38   }
     39   {
     40     S s2;
     41     s2 = sv;
     42     LIBCPP_ASSERT(s2.__invariants());
     43     assert(s2.size() == sv.size());
     44     assert(T::compare(s2.data(), sv.data(), sv.size()) == 0);
     45     assert(s2.get_allocator() == A());
     46     assert(s2.capacity() >= s2.size());
     47   }
     48 }
     49 
     50 template <class charT, class A>
     51 void
     52 test(std::basic_string_view<charT> sv, const A& a)
     53 {
     54     typedef std::basic_string<charT, std::char_traits<charT>, A> S;
     55     typedef typename S::traits_type T;
     56   {
     57     S s2(sv, a);
     58     LIBCPP_ASSERT(s2.__invariants());
     59     assert(s2.size() == sv.size());
     60     assert(T::compare(s2.data(), sv.data(), sv.size()) == 0);
     61     assert(s2.get_allocator() == a);
     62     assert(s2.capacity() >= s2.size());
     63   }
     64   {
     65     S s2(a);
     66     s2 = sv;
     67     LIBCPP_ASSERT(s2.__invariants());
     68     assert(s2.size() == sv.size());
     69     assert(T::compare(s2.data(), sv.data(), sv.size()) == 0);
     70     assert(s2.get_allocator() == a);
     71     assert(s2.capacity() >= s2.size());
     72   }
     73 }
     74 
     75 int main()
     76 {
     77     {
     78     typedef test_allocator<char> A;
     79     typedef std::basic_string_view<char, std::char_traits<char> > SV;
     80 
     81     test(SV(""));
     82     test(SV(""), A(2));
     83 
     84     test(SV("1"));
     85     test(SV("1") ,A(2));
     86 
     87     test(SV("1234567980"));
     88     test(SV("1234567980"), A(2));
     89 
     90     test(SV("123456798012345679801234567980123456798012345679801234567980"));
     91     test(SV("123456798012345679801234567980123456798012345679801234567980"), A(2));
     92     }
     93 #if TEST_STD_VER >= 11
     94     {
     95     typedef min_allocator<char> A;
     96     typedef std::basic_string_view<char, std::char_traits<char> > SV;
     97 
     98     test(SV(""));
     99     test(SV(""), A());
    100 
    101     test(SV("1"));
    102     test(SV("1") ,A());
    103 
    104     test(SV("1234567980"));
    105     test(SV("1234567980"), A());
    106 
    107     test(SV("123456798012345679801234567980123456798012345679801234567980"));
    108     test(SV("123456798012345679801234567980123456798012345679801234567980"), A());
    109     }
    110 #endif
    111 }
    112