std::inplace_vector<T,N>::clear

From cppreference.com

C++
Containers library
std::inplace_vector
Member types
Member functions
Non-member functions
constexpr void clear() noexcept;
 (since C++26)

Erases all elements from the container. After this call, size() returns zero.

Invalidates any references, pointers, and iterators referring to contained elements. Any past-the-end iterators are also invalidated.

Parameters

(none)

Return value

(none)

Complexity

Linear in the size of the container, i.e., the number of elements.

Example

Run this code
#include <iostream>
#include <string_view>
#include <inplace_vector>
 
void print_info(std::string_view rem, const std::inplace_vector<int, 3>& v)
{
    std::cout << rem << "{ ";
    for (const auto& value : v)
        std::cout << value << ' ';
    std::cout << "}\n";
    std::cout << "Size=" << v.size() << '\n';
}
 
int main()
{
    std::inplace_vector<int, 3> container{1, 2, 3};
    print_info("Before clear: ", container);
    container.clear();
    print_info("After clear: ", container);
}

Output: 

Before clear: { 1 2 3 }
Size=3
After clear: { }
Size=0

See also

 erases elements
(public member function)
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