LC_ALL, LC_COLLATE, LC_CTYPE, LC_MONETARY, LC_NUMERIC, LC_TIME (original) (raw)
| Defined in header | | | | ------------------------------------------------------------------------- | | | | #define LC_ALL /* implementation defined */ | | | | #define LC_COLLATE /* implementation defined */ | | | | #define LC_CTYPE /* implementation defined */ | | | | #define LC_MONETARY /* implementation defined */ | | | | #define LC_NUMERIC /* implementation defined */ | | | | #define LC_TIME /* implementation defined */ | | |
Each of the above macro constants expand to integer constant expressions with distinct values that are suitable for use as the first argument of std::setlocale.
| Constant | Explanation |
|---|---|
| LC_ALL | selects the entire C locale |
| LC_COLLATE | selects the collation category of the C locale |
| LC_CTYPE | selects the character classification category of the C locale |
| LC_MONETARY | selects the monetary formatting category of the C locale |
| LC_NUMERIC | selects the numeric formatting category of the C locale |
| LC_TIME | selects the time formatting category of the C locale |
Additional macro constants, with names that begin with LC_ followed by at least one uppercase letter, may be defined in . For example, the POSIX specification requires LC_MESSAGES (which controls std::perror and std::strerror), ISO/IEC 30112:2014 (2014 draft) additionally defines LC_IDENTIFICATION, LC_XLITERATE, LC_NAME, LC_ADDRESS, LC_TELEPHONE, LC_PAPER, LC_MEASUREMENT, and LC_KEYBOARD, which are supported by the GNU C library (except for LC_XLITERATE).
[edit] Example
Output:
Number: 3,14 Date: 日曜日 2022年11月06日 17時55分10秒