diff options
Diffstat (limited to 'src/nvim/memory.c')
| -rw-r--r-- | src/nvim/memory.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/src/nvim/memory.c b/src/nvim/memory.c index f4dffb0bcd..3f9e8f1ada 100644 --- a/src/nvim/memory.c +++ b/src/nvim/memory.c @@ -222,6 +222,35 @@ void *xmemdupz(const void *data, size_t len) return memcpy(xmallocz(len), data, len); } +/// A version of strchr() that returns a pointer to the terminating NUL if it +/// doesn't find `c`. +/// +/// @param str The string to search. +/// @param c The char to look for. +/// @returns a pointer to the first instance of `c`, or to the NUL terminator +/// if not found. +char *xstrchrnul(const char *str, char c) + FUNC_ATTR_NONNULL_RET FUNC_ATTR_NONNULL_ALL FUNC_ATTR_PURE +{ + char *p = strchr(str, c); + return p ? p : (char *)(str + strlen(str)); +} + +/// A version of memchr() that returns a pointer one past the end +/// if it doesn't find `c`. +/// +/// @param addr The address of the memory object. +/// @param c The char to look for. +/// @param size The size of the memory object. +/// @returns a pointer to the first instance of `c`, or one past the end if not +/// found. +void *xmemscan(const void *addr, char c, size_t size) + FUNC_ATTR_NONNULL_RET FUNC_ATTR_NONNULL_ALL FUNC_ATTR_PURE +{ + char *p = memchr(addr, c, size); + return p ? p : (char *)addr + size; +} + /// The xstpcpy() function shall copy the string pointed to by src (including /// the terminating NUL character) into the array pointed to by dst. /// |