gcc/libstdc++-v3/testsuite/backward/hash_map/25896.cc
Jakub Jelinek 8d9254fc8a Update copyright years.
From-SVN: r279813
2020-01-01 12:51:42 +01:00

159 lines
4.2 KiB
C++

// { dg-options "-Wno-deprecated" }
// Copyright (C) 2009-2020 Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library. This library is free
// software; you can redistribute it and/or modify it under the
// terms of the GNU General Public License as published by the
// Free Software Foundation; either version 3, or (at your option)
// any later version.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License along
// with this library; see the file COPYING3. If not see
// <http://www.gnu.org/licenses/>.
// This is a copy of tr1/6_containers/unordered_map/erase/1.cc, using
// hash_map instead of unordered_map.
#include <hash_map>
#include <string>
#include <testsuite_hooks.h>
namespace __gnu_cxx
{
using std::string;
inline size_t hash_string(const char* s)
{
unsigned long h;
for (h=0; *s; ++s) {
h = 5*h + *s;
}
return size_t(h);
}
template<class T> struct hash<T *>
{
size_t operator()(const T *const & s) const
{ return reinterpret_cast<size_t>(s); }
};
template<> struct hash<string>
{
size_t operator()(const string &s) const { return hash_string(s.c_str()); }
};
template<> struct hash<const string>
{
size_t operator()(const string &s) const { return hash_string(s.c_str()); }
};
}
void test01()
{
typedef __gnu_cxx::hash_map<std::string, int> Map;
typedef Map::iterator iterator;
typedef Map::const_iterator const_iterator;
typedef Map::value_type value_type;
Map m1;
m1.insert(value_type("because to why", 1));
m1.insert(value_type("the stockholm syndrome", 2));
m1.insert(value_type("a cereous night", 3));
m1.insert(value_type("eeilo", 4));
m1.insert(value_type("protean", 5));
m1.insert(value_type("the way you are when", 6));
m1.insert(value_type("tillsammans", 7));
m1.insert(value_type("umbra/penumbra", 8));
m1.insert(value_type("belonging (no longer mix)", 9));
m1.insert(value_type("one line behind", 10));
VERIFY( m1.size() == 10 );
VERIFY( m1.erase("eeilo") == 1 );
VERIFY( m1.size() == 9 );
iterator it1 = m1.find("eeilo");
VERIFY( it1 == m1.end() );
VERIFY( m1.erase("tillsammans") == 1 );
VERIFY( m1.size() == 8 );
iterator it2 = m1.find("tillsammans");
VERIFY( it2 == m1.end() );
// Must work (see DR 526)
iterator it3 = m1.find("belonging (no longer mix)");
VERIFY( it3 != m1.end() );
VERIFY( m1.erase(it3->first) == 1 );
VERIFY( m1.size() == 7 );
it3 = m1.find("belonging (no longer mix)");
VERIFY( it3 == m1.end() );
VERIFY( !m1.erase("abra") );
VERIFY( m1.size() == 7 );
VERIFY( !m1.erase("eeilo") );
VERIFY( m1.size() == 7 );
VERIFY( m1.erase("because to why") == 1 );
VERIFY( m1.size() == 6 );
iterator it4 = m1.find("because to why");
VERIFY( it4 == m1.end() );
iterator it5 = m1.find("umbra/penumbra");
iterator it6 = m1.find("one line behind");
VERIFY( it5 != m1.end() );
VERIFY( it6 != m1.end() );
VERIFY( m1.find("the stockholm syndrome") != m1.end() );
VERIFY( m1.find("a cereous night") != m1.end() );
VERIFY( m1.find("the way you are when") != m1.end() );
VERIFY( m1.find("a cereous night") != m1.end() );
VERIFY( m1.erase(it5->first) == 1 );
VERIFY( m1.size() == 5 );
it5 = m1.find("umbra/penumbra");
VERIFY( it5 == m1.end() );
VERIFY( m1.erase(it6->first) == 1 );
VERIFY( m1.size() == 4 );
it6 = m1.find("one line behind");
VERIFY( it6 == m1.end() );
iterator it7 = m1.begin();
iterator it8 = it7;
++it8;
iterator it9 = it8;
++it9;
VERIFY( m1.erase(it8->first) == 1 );
VERIFY( m1.size() == 3 );
VERIFY( ++it7 == it9 );
iterator it10 = it9;
++it10;
iterator it11 = it10;
VERIFY( m1.erase(it9->first) == 1 );
VERIFY( m1.size() == 2 );
VERIFY( ++it10 == m1.end() );
m1.erase(m1.begin());
VERIFY( m1.size() == 1 );
VERIFY( m1.begin() == it11 );
VERIFY( m1.erase(m1.begin()->first) == 1 );
VERIFY( m1.size() == 0 );
VERIFY( m1.begin() == m1.end() );
}
int main()
{
test01();
return 0;
}