std::ranges::drop_while_view<V,Pred>:: pred

Returns a reference to the stored predicate.

If * this does not store a predicate (e.g. an exception is thrown on the assignment to * this , which copy-constructs or move-constructs a Pred ), the behavior is undefined.

Parameters

(none)

Return value

A reference to the stored predicate pred_ .

Example

#include <array>
#include <iomanip>
#include <iostream>
#include <ranges>
 
int main()
{
    constexpr std::array data{0, -1, -2, 3, 1, 4, 1, 5};
 
    auto view = std::ranges::drop_while_view
    {
        data, [](int x) { return x <= 0; }
    };
 
    std::cout << std::boolalpha;
    for (int x : data)
        std::cout << "predicate(" << std::setw(2) << x << ") : "
                  << view.pred()(x) << '\n';
}

predicate( 0) : true
predicate(-1) : true
predicate(-2) : true
predicate( 3) : false
predicate( 1) : false
predicate( 4) : false
predicate( 1) : false
predicate( 5) : false