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

 

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std::inplace_vector

Member types
Member functions
inplace_vector::inplace_vector inplace_vector::~inplace_vector    inplace_vector::operator= inplace_vector::assign inplace_vector::assign_range Size and capacity inplace_vector::empty inplace_vector::size inplace_vector::max_size inplace_vector::capacity inplace_vector::resize inplace_vector::reserve inplace_vector::shrink_to_fit Iterators inplace_vector::begininplace_vector::cbegin inplace_vector::endinplace_vector::cend inplace_vector::rbegininplace_vector::crbegin inplace_vector::rendinplace_vector::crend	Element access inplace_vector::at inplace_vector::operator[] inplace_vector::front inplace_vector::back inplace_vector::data Modifiers inplace_vector::clear inplace_vector::erase inplace_vector::swap inplace_vector::insert inplace_vector::insert_range inplace_vector::emplace inplace_vector::emplace_back inplace_vector::try_emplace_back inplace_vector::unchecked_emplace_back inplace_vector::push_back inplace_vector::try_push_back inplace_vector::unchecked_push_back inplace_vector::pop_back inplace_vector::append_range inplace_vector::try_append_range
Non-member functions
erase(std::inplace_vector)erase_if(std::inplace_vector) swap(std::inplace_vector)	operator==operator<=>

 

static constexpr size_type max_size() noexcept;		(since C++26)

Returns the maximum number of elements the container is able to hold.

Parameters

(none)

Return value

Maximum number of elements, i.e. N.

Complexity

Constant.

Notes

Because each std::inplace_vector<T, N> is a fixed-capacity container, the value returned by max_size equals N (which is also the value returned by capacity()).

Example

Run this code

#include <iostream>
#include <locale>
#include <inplace_vector>
 
int main()
{
    std::inplace_vector<char, 10> p;
    std::inplace_vector<long, 10> q;
 
    std::cout.imbue(std::locale("en_US.UTF-8"));
    std::cout << std::uppercase
              << "p.max_size() = " << std::dec << p.max_size() << " = 0x"
              << std::hex << p.max_size() << '\n'
              << "q.max_size() = " << std::dec << q.max_size() << " = 0x"
              << std::hex << q.max_size() << '\n';
}

Output:

p.max_size() = 10 = 0xA
q.max_size() = 10 = 0xA

See also

size	returns the number of elements (public member function)
capacity [static]	returns the number of elements that can be held in currently allocated storage (public static member function)