std::array<T,N>::fill - cppreference.com (original) (raw)

| void fill( const T& value ); | | (since C++11) (constexpr since C++20) | | ---------------------------- | | ------------------------------------- |

Assigns the value to all elements in the container.

[edit] Parameters

[edit] Return value

(none)

[edit] Complexity

Linear in the size of the container.

[edit] Example

#include #include #include   int main() { constexpr std::size_t xy = 4;   using Cell = std::array<unsigned char, 8>;   std::array<Cell, xy * xy> board;   board.fill({0xE2, 0x96, 0x84, 0xE2, 0x96, 0x80, 0, 0}); // "▄▀";   for (std::size_t count{}; Cell c : board) std::cout << c.data() << ((++count % xy) ? "" : "\n"); }

Possible output:

▄▀▄▀▄▀▄▀ ▄▀▄▀▄▀▄▀ ▄▀▄▀▄▀▄▀ ▄▀▄▀▄▀▄▀

[edit] See also

| | copy-assigns the given value to every element in a range (function template) [edit] | | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | | copy-assigns the given value to N elements in a range (function template) [edit] | | | assigns a range of elements a certain value(algorithm function object)[edit] |