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constexpr size_type max_size()constnoexcept; | (since C++17) | |
The largest possible number of char-like objects that can be referred to by abasic_string_view.
Contents |
(none)
Maximum number of characters.
Constant.
#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()
| returns the number of characters (public member function)[edit] | |
| checks whether the view is empty (public member function)[edit] | |
| returns the maximum number of characters (public member function of std::basic_string<CharT,Traits,Allocator>)[edit] |
