multimap::difference_type (STL/CLR)
2 個の要素間の符号付き距離の種類。
typedef int difference_type;
解説
型は、負の要素数を指定します。
使用例
// cliext_multimap_difference_type.cpp
// compile with: /clr
#include <cliext/map>
typedef cliext::multimap<wchar_t, int> Mymultimap;
int main()
{
Mymultimap c1;
c1.insert(Mymultimap::make_value(L'a', 1));
c1.insert(Mymultimap::make_value(L'b', 2));
c1.insert(Mymultimap::make_value(L'c', 3));
// display contents " [a 1] [b 2] [c 3]"
for each (Mymultimap::value_type elem in c1)
System::Console::Write(" [{0} {1}]", elem->first, elem->second);
System::Console::WriteLine();
// compute positive difference
Mymultimap::difference_type diff = 0;
for (Mymultimap::iterator it = c1.begin(); it != c1.end(); ++it)
++diff;
System::Console::WriteLine("end()-begin() = {0}", diff);
// compute negative difference
diff = 0;
for (Mymultimap::iterator it = c1.end(); it != c1.begin(); --it)
--diff;
System::Console::WriteLine("begin()-end() = {0}", diff);
return (0);
}
必要条件
ヘッダー: <cliext/マップ>
名前空間: の cliext