_tolower - transliterate upper-case characters to lower-case
#include <ctype.h>
The _tolower() macro is equivalent to tolower(3C) except that the argument c must be an upper-case letter.
On successful completion, _tolower() returns the lower-case letter corresponding to the argument passed.
See attributes(5) for descriptions of the following attributes:
ATTRIBUTE TYPE | ATTRIBUTE VALUE |
CSI | Enabled |
Interface Stability | Standard |
MT-Level | MT-Safe |
isupper(3C), tolower(3C), attributes(5), standards(5)
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Created 1996-2024 by Maxim Chirkov Добавить, Поддержать, Вебмастеру |