blob: 8e5919539d94eb05b68ee9f096592b1fabf545df (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
|
//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
// UNSUPPORTED: no-exceptions
// This test fails when using a built library that does not contain
// 15860446a8c3, which changed the return value of max_size(). Without
// that change, the built library believes the max size to be one greater
// than it really is, and we fail to throw `length_error` from `string::resize()`,
// which is explicitly instantiated in the built library.
//
// XFAIL: using-built-library-before-llvm-21
// <string>
// size_type max_size() const; // constexpr since C++20
#include <string>
#include <cassert>
#include <stdexcept>
#include "test_macros.h"
#include "min_allocator.h"
template <class S>
void test(const S& s) {
assert(s.max_size() >= s.size());
S s2(s);
const std::size_t sz = s2.max_size() + 1;
try {
s2.resize(sz, 'x');
} catch (const std::length_error&) {
return;
}
assert(false);
}
template <class S>
void test_string() {
test(S());
test(S("123"));
test(S("12345678901234567890123456789012345678901234567890"));
}
bool test() {
test_string<std::string>();
#if TEST_STD_VER >= 11
test_string<std::basic_string<char, std::char_traits<char>, min_allocator<char>>>();
#endif
return true;
}
int main(int, char**) {
test();
return 0;
}
|
