diff options
Diffstat (limited to 'src/nvim/mbyte.h')
| -rw-r--r-- | src/nvim/mbyte.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/src/nvim/mbyte.h b/src/nvim/mbyte.h index 2f17c706c1..ddac040aae 100644 --- a/src/nvim/mbyte.h +++ b/src/nvim/mbyte.h @@ -52,6 +52,16 @@ extern const uint8_t utf8len_tab[256]; #define MB_PTR_BACK(s, p) \ (p -= utf_head_off((char *)(s), (char *)(p) - 1) + 1) +/// Check whether a given UTF-8 byte is a trailing byte (10xx.xxxx). +static inline bool utf_is_trail_byte(uint8_t byte) + REAL_FATTR_CONST REAL_FATTR_ALWAYS_INLINE; + +static inline bool utf_is_trail_byte(uint8_t const byte) +{ + // uint8_t is for clang to use smaller cmp + return (uint8_t)(byte & 0xC0U) == 0x80U; +} + static inline CharInfo utf_ptr2CharInfo(char const *p_in) REAL_FATTR_NONNULL_ALL REAL_FATTR_PURE REAL_FATTR_WARN_UNUSED_RESULT REAL_FATTR_ALWAYS_INLINE; |