Skip site navigation (1)Skip section navigation (2)

FreeBSD Manual Pages

  
 
  

home | help 
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 <valarray>
	#include <iostream>

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

Output:
	1 2 3

http://cppreference.com		  2022.07.31	 deductiongu...td::valarray(3)

Want to link to this manual page? Use this URL:
<https://man.freebsd.org/cgi/man.cgi?query=deductionguidesforstd::valarray&sektion=3&manpath=FreeBSD+Ports+15.0>

home | help