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 substr(size_type pos = 0, size_type n = npos) const;
13
14 #include <string>
15 #include <stdexcept>
16 #include <algorithm>
17 #include <cassert>
18
19 #include "test_macros.h"
20 #include "min_allocator.h"
21
22 template <class S>
23 void
test(const S & s,typename S::size_type pos,typename S::size_type n)24 test(const S& s, typename S::size_type pos, typename S::size_type n)
25 {
26 if (pos <= s.size())
27 {
28 S str = s.substr(pos, n);
29 LIBCPP_ASSERT(str.__invariants());
30 assert(pos <= s.size());
31 typename S::size_type rlen = std::min(n, s.size() - pos);
32 assert(str.size() == rlen);
33 assert(S::traits_type::compare(s.data()+pos, str.data(), rlen) == 0);
34 }
35 #ifndef TEST_HAS_NO_EXCEPTIONS
36 else
37 {
38 try
39 {
40 S str = s.substr(pos, n);
41 assert(false);
42 }
43 catch (std::out_of_range&)
44 {
45 assert(pos > s.size());
46 }
47 }
48 #endif
49 }
50
main()51 int main()
52 {
53 {
54 typedef std::string S;
55 test(S(""), 0, 0);
56 test(S(""), 1, 0);
57 test(S("pniot"), 0, 0);
58 test(S("htaob"), 0, 1);
59 test(S("fodgq"), 0, 2);
60 test(S("hpqia"), 0, 4);
61 test(S("qanej"), 0, 5);
62 test(S("dfkap"), 1, 0);
63 test(S("clbao"), 1, 1);
64 test(S("ihqrf"), 1, 2);
65 test(S("mekdn"), 1, 3);
66 test(S("ngtjf"), 1, 4);
67 test(S("srdfq"), 2, 0);
68 test(S("qkdrs"), 2, 1);
69 test(S("ikcrq"), 2, 2);
70 test(S("cdaih"), 2, 3);
71 test(S("dmajb"), 4, 0);
72 test(S("karth"), 4, 1);
73 test(S("lhcdo"), 5, 0);
74 test(S("acbsj"), 6, 0);
75 test(S("pbsjikaole"), 0, 0);
76 test(S("pcbahntsje"), 0, 1);
77 test(S("mprdjbeiak"), 0, 5);
78 test(S("fhepcrntko"), 0, 9);
79 test(S("eqmpaidtls"), 0, 10);
80 test(S("joidhalcmq"), 1, 0);
81 test(S("omigsphflj"), 1, 1);
82 test(S("kocgbphfji"), 1, 4);
83 test(S("onmjekafbi"), 1, 8);
84 test(S("fbslrjiqkm"), 1, 9);
85 test(S("oqmrjahnkg"), 5, 0);
86 test(S("jeidpcmalh"), 5, 1);
87 test(S("schfalibje"), 5, 2);
88 test(S("crliponbqe"), 5, 4);
89 test(S("igdscopqtm"), 5, 5);
90 test(S("qngpdkimlc"), 9, 0);
91 test(S("thdjgafrlb"), 9, 1);
92 test(S("hcjitbfapl"), 10, 0);
93 test(S("mgojkldsqh"), 11, 0);
94 test(S("gfshlcmdjreqipbontak"), 0, 0);
95 test(S("nadkhpfemgclosibtjrq"), 0, 1);
96 test(S("nkodajteqplrbifhmcgs"), 0, 10);
97 test(S("ofdrqmkeblthacpgijsn"), 0, 19);
98 test(S("gbmetiprqdoasckjfhln"), 0, 20);
99 test(S("bdfjqgatlksriohemnpc"), 1, 0);
100 test(S("crnklpmegdqfiashtojb"), 1, 1);
101 test(S("ejqcnahdrkfsmptilgbo"), 1, 9);
102 test(S("jsbtafedocnirgpmkhql"), 1, 18);
103 test(S("prqgnlbaejsmkhdctoif"), 1, 19);
104 test(S("qnmodrtkebhpasifgcjl"), 10, 0);
105 test(S("pejafmnokrqhtisbcdgl"), 10, 1);
106 test(S("cpebqsfmnjdolhkratgi"), 10, 5);
107 test(S("odnqkgijrhabfmcestlp"), 10, 9);
108 test(S("lmofqdhpkibagnrcjste"), 10, 10);
109 test(S("lgjqketopbfahrmnsicd"), 19, 0);
110 test(S("ktsrmnqagdecfhijpobl"), 19, 1);
111 test(S("lsaijeqhtrbgcdmpfkno"), 20, 0);
112 test(S("dplqartnfgejichmoskb"), 21, 0);
113 }
114 #if TEST_STD_VER >= 11
115 {
116 typedef std::basic_string<char, std::char_traits<char>, min_allocator<char>> S;
117 test(S(""), 0, 0);
118 test(S(""), 1, 0);
119 test(S("pniot"), 0, 0);
120 test(S("htaob"), 0, 1);
121 test(S("fodgq"), 0, 2);
122 test(S("hpqia"), 0, 4);
123 test(S("qanej"), 0, 5);
124 test(S("dfkap"), 1, 0);
125 test(S("clbao"), 1, 1);
126 test(S("ihqrf"), 1, 2);
127 test(S("mekdn"), 1, 3);
128 test(S("ngtjf"), 1, 4);
129 test(S("srdfq"), 2, 0);
130 test(S("qkdrs"), 2, 1);
131 test(S("ikcrq"), 2, 2);
132 test(S("cdaih"), 2, 3);
133 test(S("dmajb"), 4, 0);
134 test(S("karth"), 4, 1);
135 test(S("lhcdo"), 5, 0);
136 test(S("acbsj"), 6, 0);
137 test(S("pbsjikaole"), 0, 0);
138 test(S("pcbahntsje"), 0, 1);
139 test(S("mprdjbeiak"), 0, 5);
140 test(S("fhepcrntko"), 0, 9);
141 test(S("eqmpaidtls"), 0, 10);
142 test(S("joidhalcmq"), 1, 0);
143 test(S("omigsphflj"), 1, 1);
144 test(S("kocgbphfji"), 1, 4);
145 test(S("onmjekafbi"), 1, 8);
146 test(S("fbslrjiqkm"), 1, 9);
147 test(S("oqmrjahnkg"), 5, 0);
148 test(S("jeidpcmalh"), 5, 1);
149 test(S("schfalibje"), 5, 2);
150 test(S("crliponbqe"), 5, 4);
151 test(S("igdscopqtm"), 5, 5);
152 test(S("qngpdkimlc"), 9, 0);
153 test(S("thdjgafrlb"), 9, 1);
154 test(S("hcjitbfapl"), 10, 0);
155 test(S("mgojkldsqh"), 11, 0);
156 test(S("gfshlcmdjreqipbontak"), 0, 0);
157 test(S("nadkhpfemgclosibtjrq"), 0, 1);
158 test(S("nkodajteqplrbifhmcgs"), 0, 10);
159 test(S("ofdrqmkeblthacpgijsn"), 0, 19);
160 test(S("gbmetiprqdoasckjfhln"), 0, 20);
161 test(S("bdfjqgatlksriohemnpc"), 1, 0);
162 test(S("crnklpmegdqfiashtojb"), 1, 1);
163 test(S("ejqcnahdrkfsmptilgbo"), 1, 9);
164 test(S("jsbtafedocnirgpmkhql"), 1, 18);
165 test(S("prqgnlbaejsmkhdctoif"), 1, 19);
166 test(S("qnmodrtkebhpasifgcjl"), 10, 0);
167 test(S("pejafmnokrqhtisbcdgl"), 10, 1);
168 test(S("cpebqsfmnjdolhkratgi"), 10, 5);
169 test(S("odnqkgijrhabfmcestlp"), 10, 9);
170 test(S("lmofqdhpkibagnrcjste"), 10, 10);
171 test(S("lgjqketopbfahrmnsicd"), 19, 0);
172 test(S("ktsrmnqagdecfhijpobl"), 19, 1);
173 test(S("lsaijeqhtrbgcdmpfkno"), 20, 0);
174 test(S("dplqartnfgejichmoskb"), 21, 0);
175 }
176 #endif
177 }
178