std::basic_string_view<CharT,Traits>:: max_size
From cppreference.com
<
cpp
|
string
|
basic string view
|
constexpr
size_type max_size
(
)
const
noexcept
;
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(since C++17) | |
The largest possible number of char-like objects that can be referred to by a
basic_string_view
.
Parameters
(none)
Return value
Maximum number of characters.
Complexity
Constant.
Example
Run this code
#include <cstdint> #include <iostream> #include <limits> #include <string_view> int main() { std::cout << std::numeric_limits<std::int64_t>::max() << " <- numeric_limits<int64_t>::max()\n" << std::string_view{}.max_size() << " <- string_view::max_size()\n" << std::basic_string_view<char>{}.max_size() << " <- basic_string_view<char>::max_size()\n" << std::basic_string_view<char16_t>{}.max_size() << " <- basic_string_view<char16_t>::max_size()\n" << std::wstring_view{}.max_size() << " <- wstring_view::max_size()\n" << std::basic_string_view<char32_t>{}.max_size() << " <- basic_string_view<char32_t>::max_size()\n"; }
Possible output:
9223372036854775807 <- numeric_limits<int64_t>::max() 4611686018427387899 <- string_view::max_size() 4611686018427387899 <- basic_string_view<char>::max_size() 2305843009213693949 <- basic_string_view<char16_t>::max_size() 1152921504606846974 <- wstring_view::max_size() 1152921504606846974 <- basic_string_view<char32_t>::max_size()
See also
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returns the number of characters
(public member function) |
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checks whether the view is empty
(public member function) |
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returns the maximum number of characters
(public member function of
std::basic_string<CharT,Traits,Allocator>
)
|