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100 lines
2.5 KiB
C++
100 lines
2.5 KiB
C++
// 1999-05-11 bkoz
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// Copyright (C) 1999-2014 Free Software Foundation, Inc.
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//
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// This file is part of the GNU ISO C++ Library. This library is free
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// software; you can redistribute it and/or modify it under the
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// terms of the GNU General Public License as published by the
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// Free Software Foundation; either version 3, or (at your option)
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// any later version.
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License along
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// with this library; see the file COPYING3. If not see
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// <http://www.gnu.org/licenses/>.
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// 21.3.3 string capacity
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#include <string>
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#include <testsuite_hooks.h>
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void test01()
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{
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// POD types : resize, capacity, reserve
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bool test __attribute__((unused)) = true;
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std::string str01;
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typedef std::string::size_type size_type_s;
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size_type_s sz01 = str01.capacity();
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str01.reserve(100);
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size_type_s sz02 = str01.capacity();
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VERIFY( sz02 >= sz01 );
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VERIFY( sz02 >= 100 );
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str01.reserve();
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sz01 = str01.capacity();
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VERIFY( sz01 == 0 );
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sz01 = str01.size() + 5;
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str01.resize(sz01);
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sz02 = str01.size();
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VERIFY( sz01 == sz02 );
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sz01 = str01.size() - 5;
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str01.resize(sz01);
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sz02 = str01.size();
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VERIFY( sz01 == sz02 );
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std::string str05(30, 'q');
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std::string str06 = str05;
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str05 = str06 + str05;
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VERIFY( str05.capacity() >= str05.size() );
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VERIFY( str06.capacity() >= str06.size() );
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// POD types: size, length, max_size, clear(), empty()
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bool b01;
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std::string str011;
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b01 = str01.empty();
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VERIFY( b01 == true );
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sz01 = str01.size();
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sz02 = str01.length();
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VERIFY( sz01 == sz02 );
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str01.c_str();
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sz01 = str01.size();
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sz02 = str01.length();
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VERIFY( sz01 == sz02 );
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sz01 = str01.length();
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str01.c_str();
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str011 = str01 + "_addendum_";
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str01.c_str();
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sz02 = str01.length();
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VERIFY( sz01 == sz02 );
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sz02 = str011.length();
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VERIFY( sz02 > sz01 );
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// trickster allocator issues involved with these:
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std::string str3 = "8-chars_8-chars_";
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std::string str4 = str3 + "7-chars";
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sz01 = str01.size();
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sz02 = str01.max_size();
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VERIFY( sz02 >= sz01 );
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sz01 = str01.size();
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str01.clear();
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b01 = str01.empty();
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VERIFY( b01 == true );
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sz02 = str01.size();
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VERIFY( sz01 >= sz02 );
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}
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int main()
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{
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test01();
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return 0;
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}
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