std::experimental::all_of, std::experimental::any_of, std::experimental::none_of, std::experimental::some_of

 

C++

Compiler support

Freestanding and hosted

Language

Standard library

Standard library headers

Named requirements

Feature test macros (C++20)

Language support library

Concepts library (C++20)

Diagnostics library

Memory management library

Metaprogramming library (C++11)

General utilities library

Containers library

Iterators library

Ranges library (C++20)

Algorithms library

Strings library

Text processing library

Numerics library

Date and time library

Input/output library

Filesystem library (C++17)

Concurrency support library (C++11)

Execution control library (C++26)

Technical specifications

Symbols index

External libraries

 

Experimental

Technical Specification

Filesystem library (filesystem TS)

Library fundamentals (library fundamentals TS)

Library fundamentals 2 (library fundamentals TS v2)

Library fundamentals 3 (library fundamentals TS v3)

Extensions for parallelism (parallelism TS)

Extensions for parallelism 2 (parallelism TS v2)

Extensions for concurrency (concurrency TS)

Extensions for concurrency 2 (concurrency TS v2)

Concepts (concepts TS)

Ranges (ranges TS)

Reflection (reflection TS)

Mathematical special functions (special functions TR)

Experimental Non-TS

Pattern Matching

Linear Algebra

std::execution

Contracts

2D Graphics

 

Extensions for parallelism v2

Parallel exceptions
exception_list
Additional execution policies
execution::vector_policy	execution::unsequenced_policy
Algorithms
induction reductionreduction_plusreduction_minusreduction_multiplies	reduction_bit_andreduction_bit_orreduction_bit_xorreduction_minreduction_max	for_loopfor_loop_stridedfor_loop_nfor_loop_n_strided
execution::no_vec
execution::ordered_update_t
Task blocks
task_block
task_cancelled_exception
define_task_blockdefine_task_block_restore_thread
Data-parallel vectors

 

SIMD library

Main classes
simd	simd_mask
ABI tags
simd_abi::scalar simd_abi::fixed_size	simd_abi::native simd_abi::compatible	simd_abi::max_fixed_size simd_abi::deduce
Alignment tags
element_aligned_tagelement_aligned	vector_aligned_tagvector_aligned	overaligned_tagoveraligned
Where expression
where	where_expression	const_where_expression
Casts
simd_caststatic_simd_cast	to_fixed_sizeto_compatibleto_native	splitsplit_by concat
Algorithms
min max	minmax clamp
Reduction
reducehminhmax
Mask reduction
all_ofany_ofnone_ofsome_of	popcount find_first_setfind_last_set
Traits
is_simdis_simd_mask is_abi_tag is_simd_flag_type	simd_size memory_alignment rebind_simdresize_simd
Math functions

 

Defined in header <experimental/simd>
template< class T, class Abi > bool all_of( const simd_mask<T, Abi>& k );	(1)	(parallelism TS v2)
template< class T, class Abi > bool any_of( const simd_mask<T, Abi>& k );	(2)	(parallelism TS v2)
template< class T, class Abi > bool none_of( const simd_mask<T, Abi>& k );	(3)	(parallelism TS v2)
template< class T, class Abi > bool some_of( const simd_mask<T, Abi>& k );	(4)	(parallelism TS v2)

1) Returns true if all values in k are true.

2) Returns true if at least one value in k is true.

3) Returns true if all values in k are false.

4) Returns true if at least one value in k is true but not all values in k are true.

Parameters

k

-

the simd_mask to apply the reduction to

Return value

See More

The boolean result of the horizontal reduction.

Example

Run this code

#include <cassert>
#include <experimental/simd>

namespace stq = std::experimental;

int main()
{
    using mask = stq::fixed_size_simd_mask<int, 4>;

    mask mask1{false}; // = {0, 0, 0, 0}
    assert
    (
        stq::none_of(mask1) == true &&
        stq::any_of(mask1) == false &&
        stq::some_of(mask1) == false &&
        stq::all_of(mask1) == false
    );

    mask mask2{true}; // = {1, 1, 1, 1}
    assert
    (
        stq::none_of(mask2) == false &&
        stq::any_of(mask2) == true &&
        stq::some_of(mask2) == false &&
        stq::all_of(mask2) == true
    );

    mask mask3{true};
    mask3[0] = mask3[1] = false; // mask3 = {0, 0, 1, 1}
    assert
    (
        stq::none_of(mask3) == false &&
        stq::any_of(mask3) == true &&
        stq::some_of(mask3) == true &&
        stq::all_of(mask3) == false
    );
}