unicode_code_point

If ZTD_TEXT_UNICODE_CODE_POINT_DISTINCT_TYPE is turned on, this type definition points to an internal class which implements the invariant of being a unicode code point. Otherwise, it is simply char32_t.

A unicode code point is stored as an at least 32-bit value, but may occupy more space depending on the architecture. It requires 21 bits of space to fit the required unicode code point definition. If the distinct type is used, then this type will trap (abort/assert) if the value is greater than the allowed 21 bits.

typedef char32_t ztd::text::unicode_code_point

Internal Type

Warning

⚠️ Names with double underscores, and within the __*detail and __*impl namespaces are reserved for the implementation. Referencing this entity directly is bad, and the name/functionality can be changed at any point in the future. Relying on anything not guaranteed by the documentation is ☢️☢️Undefined Behavior☢️☢️.

class ztd::text::__txt_impl::__unicode_code_point

A 32-bit value that is within the allowed 21 bits of Unicode. Can be one of the surrogate values.

Public Functions

__unicode_code_point() noexcept = default

Constructs a code point value of indeterminate value (if no parentheses/brackets are provided) or with the value 0 (if parentheses/brackets are provided for intentional value initialization).

inline constexpr __unicode_code_point(char32_t __code_point) noexcept

Constructs a code point value with the given code point value.

Remark

inline explicit constexpr operator char32_t() const noexcept

An explicit conversion to a typical char32_t value, bit-compatible with a normal code point value.

inline constexpr const char32_t &value() const & noexcept

Retrieves the underlying value.

inline constexpr char32_t &value() & noexcept

Retrieves the underlying value.

inline constexpr char32_t &&value() && noexcept

Retrieves the underlying value.