none_of

auto eve::algo::none_of = function_with_traits<none_of_>

inlineconstexpr

#include <eve/module/algo/algo/none_of.hpp>

Tests if none of the elements in the range match the predicate. by default aligns and unrolls 4 times.

Alternative Header

#include <eve/algo.hpp>

Callable Signatures

namespace eve::algo
{
  template <eve::algo::relaxed_range Rng, typename P>
  bool none_of(Rng&& rng, P p);
}

Parameters

• rng: Relaxed input range to process
• 'p': Predicate

Return value

true if p returns true for no elements in the range, false otherwise. Returns true if the range is empty.

Example

#include <eve/module/core.hpp>
#include <eve/module/algo.hpp>
#include <iostream>
#include <vector>
#include <tts/tts.hpp>
 
int main()
{
  std::vector<int>  v = {2,5,-9,3,-8,2,-5,7,-2,3};
 
  std::cout << " -> v                                   = "
            << tts::as_string(v)
            << "\n";
 
  std::cout << " -> eve::algo::none_of(v, i == 0)       = "
            << std::boolalpha << eve::algo::none_of(v, [](auto i){ return i == 0; })<< "\n";
 
  std::cout << " -> eve::algo::none_of(v, eve::is_ltz)  = "
            << std::boolalpha << eve::algo::none_of(v, eve::is_ltz)<< "\n";
 
  return 0;
}