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<charT,traits,Allocator>&
13 // append(const charT* s, size_type n);
14
15 #include <string>
16 #include <stdexcept>
17 #include <cassert>
18
19 #include "min_allocator.h"
20
21 template <class S>
22 void
test(S s,const typename S::value_type * str,typename S::size_type n,S expected)23 test(S s, const typename S::value_type* str, typename S::size_type n, S expected)
24 {
25 s.append(str, n);
26 assert(s.__invariants());
27 assert(s == expected);
28 }
29
main()30 int main()
31 {
32 {
33 typedef std::string S;
34 test(S(), "", 0, S());
35 test(S(), "12345", 3, S("123"));
36 test(S(), "12345", 4, S("1234"));
37 test(S(), "12345678901234567890", 0, S());
38 test(S(), "12345678901234567890", 1, S("1"));
39 test(S(), "12345678901234567890", 3, S("123"));
40 test(S(), "12345678901234567890", 20, S("12345678901234567890"));
41
42 test(S("12345"), "", 0, S("12345"));
43 test(S("12345"), "12345", 5, S("1234512345"));
44 test(S("12345"), "1234567890", 10, S("123451234567890"));
45
46 test(S("12345678901234567890"), "", 0, S("12345678901234567890"));
47 test(S("12345678901234567890"), "12345", 5, S("1234567890123456789012345"));
48 test(S("12345678901234567890"), "12345678901234567890", 20,
49 S("1234567890123456789012345678901234567890"));
50 }
51 #if __cplusplus >= 201103L
52 {
53 typedef std::basic_string<char, std::char_traits<char>, min_allocator<char>> S;
54 test(S(), "", 0, S());
55 test(S(), "12345", 3, S("123"));
56 test(S(), "12345", 4, S("1234"));
57 test(S(), "12345678901234567890", 0, S());
58 test(S(), "12345678901234567890", 1, S("1"));
59 test(S(), "12345678901234567890", 3, S("123"));
60 test(S(), "12345678901234567890", 20, S("12345678901234567890"));
61
62 test(S("12345"), "", 0, S("12345"));
63 test(S("12345"), "12345", 5, S("1234512345"));
64 test(S("12345"), "1234567890", 10, S("123451234567890"));
65
66 test(S("12345678901234567890"), "", 0, S("12345678901234567890"));
67 test(S("12345678901234567890"), "12345", 5, S("1234567890123456789012345"));
68 test(S("12345678901234567890"), "12345678901234567890", 20,
69 S("1234567890123456789012345678901234567890"));
70 }
71 #endif
72 }
73