bool operator()(size_t a, size_t b)
{
for (size_t column = column_first_; column < column_beyond_; ++column)
{
typename MatrixType::value_type va = matrix_(a, column);
typename MatrixType::value_type vb = matrix_(b, column);
if (less_(va, vb))
return true;
else if (less_(vb, va))
return false;
}
return false;
}
bool ge(value_type x, value_type y) {
return !less_(x, y);
}
bool gt(value_type x, value_type y) {
return !less_(x, y) && less_(y, x);
}
bool le(value_type x, value_type y) {
return less_(x, y) || !less_(y, x);
}
bool lt(value_type x, value_type y) {
return less_(x, y);
}
