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deductiongu...td::valarray(3) C++ Standard Libarydeductiongu...td::valarray(3)

NAME
       deductionguidesforstd::valarray - deductionguidesforstd::valarray

Synopsis
	  Defined in header <valarray>
	  template<  typename  T,  std::size_t	cnt >			(since
       C++17)
	  valarray( const T(&)[cnt], std::size_t ) -> valarray<T>;

	  This deduction guide is provided for std::valarray to	 allow	deduc-
       tion from array and
	  size	(note  that  deduction from pointer and	size is	covered	by the
       implicit	guides).

Example
       // Run this code

	#include <iostream>
	#include <valarray>

	int main()
	{
	    int	a[] = {1, 2, 3,	4};
	    std::valarray va(a,	3); // uses explicit deduction guide
	    for	(int x : va)
		std::cout << x << ' ';
	    std::cout << '\n';
	}

Output:
	1 2 3

http://cppreference.com		  2024.06.10	 deductiongu...td::valarray(3)

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