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deductiongu...td::valarray(3)  C++ Standard Libary deductiongu...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 deduction
     from array and
	size (note that deduction from pointer and size is covered  by	the  im-
     plicit 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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