File: any_of.cpp

package info (click to toggle)
boost1.88 1.88.0-1
  • links: PTS, VCS
  • area: main
  • in suites: trixie
  • size: 576,932 kB
  • sloc: cpp: 4,149,234; xml: 136,789; ansic: 35,092; python: 33,910; asm: 5,698; sh: 4,604; ada: 1,681; makefile: 1,633; pascal: 1,139; perl: 1,124; sql: 640; yacc: 478; ruby: 271; java: 77; lisp: 24; csh: 6
file content (45 lines) | stat: -rw-r--r-- 2,442 bytes parent folder | download | duplicates (5)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
// Copyright Louis Dionne 2013-2022
// Distributed under the Boost Software License, Version 1.0.
// (See accompanying file LICENSE.md or copy at http://boost.org/LICENSE_1_0.txt)

#include <boost/hana/detail/any_of.hpp>
#include <boost/hana/detail/wrong.hpp>
#include <boost/hana/integral_constant.hpp>
namespace hana = boost::hana;


template <typename I>
struct is_even {
    static constexpr bool value = I::value % 2 == 0;
};


static_assert(!hana::detail::any_of<is_even>::value, "");
static_assert(!hana::detail::any_of<is_even, hana::int_<1>>::value, "");
static_assert(!hana::detail::any_of<is_even, hana::int_<1>, hana::int_<3>>::value, "");
static_assert(!hana::detail::any_of<is_even, hana::int_<1>, hana::int_<3>, hana::int_<5>>::value, "");
static_assert(!hana::detail::any_of<is_even, hana::int_<1>, hana::int_<3>, hana::int_<5>, hana::int_<7>>::value, "");

static_assert(hana::detail::any_of<is_even, hana::int_<0>>::value, "");
static_assert(hana::detail::any_of<is_even, hana::int_<0>, hana::int_<2>>::value, "");
static_assert(hana::detail::any_of<is_even, hana::int_<0>, hana::int_<2>, hana::int_<4>>::value, "");
static_assert(hana::detail::any_of<is_even, hana::int_<0>, hana::int_<2>, hana::int_<4>, hana::int_<6>>::value, "");

static_assert(hana::detail::any_of<is_even, hana::int_<0>, hana::int_<1>>::value, "");
static_assert(hana::detail::any_of<is_even, hana::int_<0>, hana::int_<1>, hana::int_<2>>::value, "");
static_assert(hana::detail::any_of<is_even, hana::int_<0>, hana::int_<1>, hana::int_<2>, hana::int_<3>>::value, "");
static_assert(hana::detail::any_of<is_even, hana::int_<0>, hana::int_<1>, hana::int_<2>, hana::int_<3>, hana::int_<4>>::value, "");
static_assert(hana::detail::any_of<is_even, hana::int_<1>, hana::int_<3>, hana::int_<5>, hana::int_<8>>::value, "");
static_assert(hana::detail::any_of<is_even, hana::int_<1>, hana::int_<8>, hana::int_<5>, hana::int_<7>>::value, "");

// Make sure we short-circuit properly
template <typename ...Dummy>
struct fail {
    static_assert(hana::detail::wrong<Dummy...>::value,
        "this must never be instantiated");
};
static_assert(hana::detail::any_of<is_even, hana::int_<1>, hana::int_<2>, fail<>>::value, "");
static_assert(hana::detail::any_of<is_even, hana::int_<1>, hana::int_<2>, fail<>, hana::int_<3>>::value, "");
static_assert(hana::detail::any_of<is_even, hana::int_<1>, hana::int_<2>, fail<>, hana::int_<4>>::value, "");

int main() { }