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 // basic_string(const charT* s, const Allocator& a = Allocator());
13 
14 #include <string>
15 #include <stdexcept>
16 #include <algorithm>
17 #include <cassert>
18 
19 #include "test_macros.h"
20 #include "test_allocator.h"
21 #include "min_allocator.h"
22 
23 template <class charT>
24 void
25 test(const charT* s)
26 {
27     typedef std::basic_string<charT, std::char_traits<charT>, test_allocator<charT> > S;
28     typedef typename S::traits_type T;
29     typedef typename S::allocator_type A;
30     unsigned n = T::length(s);
31     S s2(s);
32     LIBCPP_ASSERT(s2.__invariants());
33     assert(s2.size() == n);
34     assert(T::compare(s2.data(), s, n) == 0);
35     assert(s2.get_allocator() == A());
36     assert(s2.capacity() >= s2.size());
37 }
38 
39 template <class charT, class A>
40 void
41 test(const charT* s, const A& a)
42 {
43     typedef std::basic_string<charT, std::char_traits<charT>, A> S;
44     typedef typename S::traits_type T;
45     unsigned n = T::length(s);
46     S s2(s, a);
47     LIBCPP_ASSERT(s2.__invariants());
48     assert(s2.size() == n);
49     assert(T::compare(s2.data(), s, n) == 0);
50     assert(s2.get_allocator() == a);
51     assert(s2.capacity() >= s2.size());
52 }
53 
54 int main()
55 {
56     {
57     typedef test_allocator<char> A;
58     typedef std::basic_string<char, std::char_traits<char>, A> S;
59 
60     test("");
61     test("", A(2));
62 
63     test("1");
64     test("1", A(2));
65 
66     test("1234567980");
67     test("1234567980", A(2));
68 
69     test("123456798012345679801234567980123456798012345679801234567980");
70     test("123456798012345679801234567980123456798012345679801234567980", A(2));
71     }
72 #if TEST_STD_VER >= 11
73     {
74     typedef min_allocator<char> A;
75     typedef std::basic_string<char, std::char_traits<char>, A> S;
76 
77     test("");
78     test("", A());
79 
80     test("1");
81     test("1", A());
82 
83     test("1234567980");
84     test("1234567980", A());
85 
86     test("123456798012345679801234567980123456798012345679801234567980");
87     test("123456798012345679801234567980123456798012345679801234567980", A());
88     }
89 #endif
90 }
91