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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, size_type n, 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, unsigned n)
     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     S s2(s, n);
     30     assert(s2.__invariants());
     31     assert(s2.size() == n);
     32     assert(T::compare(s2.data(), s, n) == 0);
     33     assert(s2.get_allocator() == A());
     34     assert(s2.capacity() >= s2.size());
     35 }
     36 
     37 template <class charT, class A>
     38 void
     39 test(const charT* s, unsigned n, const A& a)
     40 {
     41     typedef std::basic_string<charT, std::char_traits<charT>, A> S;
     42     typedef typename S::traits_type T;
     43     S s2(s, n, a);
     44     assert(s2.__invariants());
     45     assert(s2.size() == n);
     46     assert(T::compare(s2.data(), s, n) == 0);
     47     assert(s2.get_allocator() == a);
     48     assert(s2.capacity() >= s2.size());
     49 }
     50 
     51 int main()
     52 {
     53     {
     54     typedef test_allocator<char> A;
     55     typedef std::basic_string<char, std::char_traits<char>, A> S;
     56 
     57     test("", 0);
     58     test("", 0, A(2));
     59 
     60     test("1", 1);
     61     test("1", 1, A(2));
     62 
     63     test("1234567980", 10);
     64     test("1234567980", 10, A(2));
     65 
     66     test("123456798012345679801234567980123456798012345679801234567980", 60);
     67     test("123456798012345679801234567980123456798012345679801234567980", 60, A(2));
     68     }
     69 #if __cplusplus >= 201103L
     70     {
     71     typedef min_allocator<char> A;
     72     typedef std::basic_string<char, std::char_traits<char>, A> S;
     73 
     74     test("", 0);
     75     test("", 0, A());
     76 
     77     test("1", 1);
     78     test("1", 1, A());
     79 
     80     test("1234567980", 10);
     81     test("1234567980", 10, A());
     82 
     83     test("123456798012345679801234567980123456798012345679801234567980", 60);
     84     test("123456798012345679801234567980123456798012345679801234567980", 60, A());
     85     }
     86 #endif
     87 }
     88