a90c6dd460
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@224658 91177308-0d34-0410-b5e6-96231b3b80d8
63 lines
1.1 KiB
C++
63 lines
1.1 KiB
C++
//===----------------------------------------------------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is dual licensed under the MIT and the University of Illinois Open
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// Source Licenses. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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// <string>
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// void shrink_to_fit();
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#include <string>
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#include <cassert>
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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)
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{
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typename S::size_type old_cap = s.capacity();
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S s0 = s;
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s.shrink_to_fit();
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assert(s.__invariants());
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assert(s == s0);
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assert(s.capacity() <= old_cap);
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assert(s.capacity() >= s.size());
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}
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int main()
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{
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{
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typedef std::string S;
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S s;
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test(s);
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s.assign(10, 'a');
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s.erase(5);
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test(s);
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s.assign(100, 'a');
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s.erase(50);
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test(s);
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}
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#if __cplusplus >= 201103L
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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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S s;
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test(s);
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s.assign(10, 'a');
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s.erase(5);
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test(s);
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s.assign(100, 'a');
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s.erase(50);
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test(s);
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}
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#endif
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}
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