anonymous_namespace{c16rtomb.cpp} Namespace Reference

Functions
void	store_first_surrogate (char16_t c16, mbstate_t *ps)
char32_t	combine_second_surrogate (char16_t c16, mbstate_t *ps)
constexpr bool	has_surrogate (mbstate_t *ps)
constexpr bool	is_first_surrogate (char16_t c16)
constexpr bool	is_second_surrogate (char16_t c16)

Function Documentation

combine_second_surrogate()

char32_t anonymous_namespace{c16rtomb.cpp}::combine_second_surrogate ( char16_t  c16, mbstate_t *  ps  )

inline

Definition at line 24 of file c16rtomb.cpp.

    {
        return ps->_Wchar + (c16 & ~0xdc00);
    }

Referenced by __crt_mbstring::__c16rtomb_utf8().

has_surrogate()

constexpr bool anonymous_namespace{c16rtomb.cpp}::has_surrogate ( mbstate_t *  ps )

inlineconstexpr

Definition at line 29 of file c16rtomb.cpp.

    {
        return ps->_Wchar != 0;
    }

Referenced by __crt_mbstring::__c16rtomb_utf8().

is_first_surrogate()

constexpr bool anonymous_namespace{c16rtomb.cpp}::is_first_surrogate ( char16_t  c16 )

inlineconstexpr

Definition at line 34 of file c16rtomb.cpp.

    {
        // UTF-16 high surrogate
        return 0xd800 <= c16 && c16 <= 0xdbff;
    }

Referenced by __crt_mbstring::__c16rtomb_utf8().

is_second_surrogate()

constexpr bool anonymous_namespace{c16rtomb.cpp}::is_second_surrogate ( char16_t  c16 )

inlineconstexpr

Definition at line 40 of file c16rtomb.cpp.

    {
        // UTF-16 low surrogate
        return 0xdc00 <= c16 && c16 <= 0xdfff;
    }

Referenced by __crt_mbstring::__c16rtomb_utf8().

store_first_surrogate()

void anonymous_namespace{c16rtomb.cpp}::store_first_surrogate ( char16_t  c16, mbstate_t *  ps  )

inline

Definition at line 15 of file c16rtomb.cpp.

    {
        // Store the first (high) surrogate masked and shifted, so that all that's left to do
        // is to add the maksed second surrogate.
        // Note: _Wchar is the only field used in mbstate_t for this function
        const char32_t c32 = ((c16 & ~0xd800) << 10) + 0x10000;
        ps->_Wchar = c32;
    }

Referenced by __crt_mbstring::__c16rtomb_utf8().