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      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_allocator.h"
     20 #include "min_allocator.h"
     21 
     22 template <class charT>
     23 void
     24 test(const charT* s)
     25 {
     26     typedef std::basic_string<charT, std::char_traits<charT>, test_allocator<charT> > S;
     27     typedef typename S::traits_type T;
     28     typedef typename S::allocator_type A;
     29     unsigned n = T::length(s);
     30     S s2(s);
     31     assert(s2.__invariants());
     32     assert(s2.size() == n);
     33     assert(T::compare(s2.data(), s, n) == 0);
     34     assert(s2.get_allocator() == A());
     35     assert(s2.capacity() >= s2.size());
     36 }
     37 
     38 template <class charT, class A>
     39 void
     40 test(const charT* s, const A& a)
     41 {
     42     typedef std::basic_string<charT, std::char_traits<charT>, A> S;
     43     typedef typename S::traits_type T;
     44     unsigned n = T::length(s);
     45     S s2(s, a);
     46     assert(s2.__invariants());
     47     assert(s2.size() == n);
     48     assert(T::compare(s2.data(), s, n) == 0);
     49     assert(s2.get_allocator() == a);
     50     assert(s2.capacity() >= s2.size());
     51 }
     52 
     53 int main()
     54 {
     55     {
     56     typedef test_allocator<char> A;
     57     typedef std::basic_string<char, std::char_traits<char>, A> S;
     58 
     59     test("");
     60     test("", A(2));
     61 
     62     test("1");
     63     test("1", A(2));
     64 
     65     test("1234567980");
     66     test("1234567980", A(2));
     67 
     68     test("123456798012345679801234567980123456798012345679801234567980");
     69     test("123456798012345679801234567980123456798012345679801234567980", A(2));
     70     }
     71 #if __cplusplus >= 201103L
     72     {
     73     typedef min_allocator<char> A;
     74     typedef std::basic_string<char, std::char_traits<char>, A> S;
     75 
     76     test("");
     77     test("", A());
     78 
     79     test("1");
     80     test("1", A());
     81 
     82     test("1234567980");
     83     test("1234567980", A());
     84 
     85     test("123456798012345679801234567980123456798012345679801234567980");
     86     test("123456798012345679801234567980123456798012345679801234567980", A());
     87     }
     88 #endif
     89 }
     90