operator< (pair) (STL/CLR)
Pair less than comparison.
template<typename Value1,
typename Value2>
bool operator<(pair<Value1, Value2>% left,
pair<Value1, Value2>% right);
Parameters
left
Left pair to compare.right
Right pair to compare.
Remarks
The operator function returns left.first < right.first || !(right.first < left.first && left.second < right.second. You use it to test whether left is ordered the before right when the two pairs are compared element by element.
Example
// cliext_pair_operator_lt.cpp
// compile with: /clr
#include <cliext/utility>
int main()
{
cliext::pair<wchar_t, int> c1(L'x', 3);
System::Console::WriteLine("[{0}, {1}]", c1.first, c1.second);
cliext::pair<wchar_t, int> c2(L'x', 4);
System::Console::WriteLine("[{0}, {1}]", c2.first, c2.second);
System::Console::WriteLine("[x 3] < [x 3] is {0}",
c1 < c1);
System::Console::WriteLine("[x 3] < [x 4] is {0}",
c1 < c2);
return (0);
}
[x, 3] [x, 4] [x 3] < [x 3] is False [x 3] < [x 4] is True
Requirements
Header: <cliext/utility>
Namespace: cliext