LC_ALL, LC_COLLATE, LC_CTYPE, LC_MONETARY, LC_NUMERIC, LC_TIME
From cppreference.com
| Defined in header
<locale.h>
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| #define LC_ALL /*implementation defined*/
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| #define LC_COLLATE /*implementation defined*/
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| #define LC_CTYPE /*implementation defined*/
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| #define LC_MONETARY /*implementation defined*/
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| #define LC_NUMERIC /*implementation defined*/
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| #define LC_TIME /*implementation defined*/
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Each of the above macro constants expand to integer constant expressions with distinct values that are suitable for use as the first argument of setlocale.
| Constant | Explanation |
LC_ALL
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selects the entire C locale |
LC_COLLATE
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selects the collation category of the C locale |
LC_CTYPE
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selects the character classification category of the C locale |
LC_MONETARY
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selects the monetary formatting category of the C locale |
LC_NUMERIC
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selects the numeric formatting category of the C locale |
LC_TIME
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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 locale.h. For example, the POSIX specification requires LC_MESSAGES and the GNU C library additionally defines LC_PAPER, LC_NAME, LC_ADDRESS, LC_TELEPHONE, LC_MEASUREMENT, and LC_IDENTIFICATION.
[edit] Example
Run this code
#include <stdio.h> #include <locale.h> #include <time.h> #include <wchar.h> int main() { setlocale(LC_ALL, "en_US.UTF-8"); // the C locale will be the UTF-8 enabled English setlocale(LC_NUMERIC, "de_DE"); // decimal dot will be German setlocale(LC_TIME, "ja_JP"); // date/time formatting will be Japanese wchar_t str[100]; time_t t = time(NULL); wcsftime(str, 100, L"%A %c", localtime(&t)); wprintf(L"Number: %.2f\nDate: %Ls\n", 3.14, str); }
Output:
Number: 3,14 Date: 月曜日 2011年12月19日 18時04分40秒
[edit] See also
| gets and sets the current C locale (function) |
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C++ documentation for locale categories
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