68 lines
2.2 KiB
C++
68 lines
2.2 KiB
C++
//===----------------------------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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// <string>
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// iterator erase(const_iterator p);
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#include <string>
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#include <cassert>
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#include "test_macros.h"
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#include "min_allocator.h"
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template <class S>
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void
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test(S s, typename S::difference_type pos, S expected)
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{
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typename S::const_iterator p = s.begin() + pos;
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typename S::iterator i = s.erase(p);
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LIBCPP_ASSERT(s.__invariants());
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assert(s[s.size()] == typename S::value_type());
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assert(s == expected);
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assert(i - s.begin() == pos);
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}
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int main(int, char**)
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{
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{
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typedef std::string S;
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test(S("abcde"), 0, S("bcde"));
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test(S("abcde"), 1, S("acde"));
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test(S("abcde"), 2, S("abde"));
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test(S("abcde"), 4, S("abcd"));
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test(S("abcdefghij"), 0, S("bcdefghij"));
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test(S("abcdefghij"), 1, S("acdefghij"));
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test(S("abcdefghij"), 5, S("abcdeghij"));
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test(S("abcdefghij"), 9, S("abcdefghi"));
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test(S("abcdefghijklmnopqrst"), 0, S("bcdefghijklmnopqrst"));
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test(S("abcdefghijklmnopqrst"), 1, S("acdefghijklmnopqrst"));
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test(S("abcdefghijklmnopqrst"), 10, S("abcdefghijlmnopqrst"));
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test(S("abcdefghijklmnopqrst"), 19, S("abcdefghijklmnopqrs"));
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}
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#if TEST_STD_VER >= 11
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{
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typedef std::basic_string<char, std::char_traits<char>, min_allocator<char>> S;
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test(S("abcde"), 0, S("bcde"));
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test(S("abcde"), 1, S("acde"));
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test(S("abcde"), 2, S("abde"));
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test(S("abcde"), 4, S("abcd"));
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test(S("abcdefghij"), 0, S("bcdefghij"));
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test(S("abcdefghij"), 1, S("acdefghij"));
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test(S("abcdefghij"), 5, S("abcdeghij"));
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test(S("abcdefghij"), 9, S("abcdefghi"));
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test(S("abcdefghijklmnopqrst"), 0, S("bcdefghijklmnopqrst"));
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test(S("abcdefghijklmnopqrst"), 1, S("acdefghijklmnopqrst"));
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test(S("abcdefghijklmnopqrst"), 10, S("abcdefghijlmnopqrst"));
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test(S("abcdefghijklmnopqrst"), 19, S("abcdefghijklmnopqrs"));
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}
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#endif
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return 0;
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}
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