real::detail::cp_hi_table Struct Reference

Unicode-property sparse 2-stage membership for code points > U+07FF (page = cp>>8 → 256-bit block). Thread-local heap cache only — basic_pike_state's size is unchanged, which is what keeps the ASCII class loop clear of it. More...

#include <pike.hpp>

Public Member Functions
bool	contains (char32_t cp) const noexcept
	Two-stage membership probe: page index, then bit test inside that page's 256-bit block.

Public Attributes
std::vector< std::uint16_t >	page_of
	page_of[cp>>8] → index into blocks, or empty.
std::vector< std::array< std::uint8_t, 32 > >	blocks
	Non-empty 256-bit pages only.

Static Public Attributes
static constexpr std::uint16_t	empty {0xFFFFU}
	page_of sentinel: no members in that page.

Detailed Description

Unicode-property sparse 2-stage membership for code points > U+07FF (page = cp>>8 → 256-bit block). Thread-local heap cache only — basic_pike_state's size is unchanged, which is what keeps the ASCII class loop clear of it.

Member Function Documentation

contains()

bool real::detail::cp_hi_table::contains ( char32_t  cp ) const

inlinenoexcept

Two-stage membership probe: page index, then bit test inside that page's 256-bit block.

Parameters

[in]

cp

Code point to test.

Returns

True when cp is a member; false for any code point above the built range.

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The documentation for this struct was generated from the following file:

• include/real/engine/pike.hpp