Home Original page

std::text_encoding::text_encoding - cppreference.com

From cppreference.com

constexpr text_encoding() = default;

 (1) (since C++26)

constexpr explicit text_encoding( std::string_view enc ) noexcept;

 (2) (since C++26)

constexpr text_encoding( std::text_encoding::id i ) noexcept;

 (3) (since C++26)

Constructs a new text encoding object.

1) Default constructor. Constructs an object with MIBenum value std::text_encoding::id::unknown and empty character encoding name.

If enc names a registered character encoding other than NATS-DANO or NATS-DANO-ADD, then the constructed object will have the corresponding MIBenum value, otherwise it will have MIBenum std::text_encoding::id::other.

Behavior is undefined if enc.size() > std::text_encoding::max_name_length || enc.contains('\0').

3) Constructs an object with MIBenum value i.

If i is std::text_encoding::id::other or std::text_encoding::id::unknown, then the constructed object will have empty character encoding name, otherwise it will have one of the corresponding names.

Parameters

enc - character encoding name
i - MIBenum value

Example

View on Compiler Explorer. 

#include <text_encoding>

int main()
{
    constexpr std::text_encoding iso60 = std::text_encoding::ISO60DanishNorwegian;
    static_assert(iso60 == std::text_encoding("csISO60DanishNorwegian"));
    static_assert(iso60 == std::text_encoding("iso-ir-60"));
    static_assert(iso60 == std::text_encoding("NS_4551-1"));
}

External links