mirror of
https://github.com/autc04/Retro68.git
synced 2024-11-30 19:53:46 +00:00
69 lines
2.1 KiB
C
69 lines
2.1 KiB
C
|
/*
|
||
|
|
* wcsftime.c
|
||
|
|
* Original Author: Craig Howland, for Newlib
|
||
|
|
*
|
||
|
|
* Source actually uses strftime.c.
|
||
|
|
* Documentation for wcsftime() here, with minimal overlap.
|
||
|
|
*/
|
||
|
|
|
||
|
|
/*
|
||
|
|
FUNCTION
|
||
|
|
<<wcsftime>>--convert date and time to a formatted wide-character string
|
||
|
|
|
||
|
|
INDEX
|
||
|
|
wcsftime
|
||
|
|
|
||
|
|
ANSI_SYNOPSIS
|
||
|
|
#include <time.h>
|
||
|
|
#include <wchar.h>
|
||
|
|
size_t wcsftime(wchar_t *<[s]>, size_t <[maxsize]>,
|
||
|
|
const wchar_t *<[format]>, const struct tm *<[timp]>);
|
||
|
|
|
||
|
|
DESCRIPTION
|
||
|
|
<<wcsftime>> is equivalent to <<strftime>>, except that:
|
||
|
|
|
||
|
|
O+
|
||
|
|
o The argument s points to the initial element of an array of wide characters
|
||
|
|
into which the generated output is to be placed.
|
||
|
|
|
||
|
|
o The argument maxsize indicates the limiting number of wide characters.
|
||
|
|
|
||
|
|
o The argument format is a wide-character string and the conversion specifiers
|
||
|
|
are replaced by corresponding sequences of wide characters.
|
||
|
|
|
||
|
|
o The return value indicates the number of wide characters.
|
||
|
|
O-
|
||
|
|
(The difference in all of the above being wide characters versus regular
|
||
|
|
characters.)
|
||
|
|
|
||
|
|
See <<strftime>> for the details of the format specifiers.
|
||
|
|
|
||
|
|
RETURNS
|
||
|
|
When the formatted time takes up no more than <[maxsize]> wide characters,
|
||
|
|
the result is the length of the formatted wide string. Otherwise, if the
|
||
|
|
formatting operation was abandoned due to lack of room, the result is
|
||
|
|
<<0>>, and the wide-character string starting at <[s]> corresponds to just those
|
||
|
|
parts of <<*<[format]>>> that could be completely filled in within the
|
||
|
|
<[maxsize]> limit.
|
||
|
|
|
||
|
|
PORTABILITY
|
||
|
|
C99 and POSIX require <<wcsftime>>, but do not specify the contents of
|
||
|
|
<<*<[s]>>> when the formatted string would require more than
|
||
|
|
<[maxsize]> characters. Unrecognized specifiers and fields of
|
||
|
|
<<timp>> that are out of range cause undefined results. Since some
|
||
|
|
formats expand to 0 bytes, it is wise to set <<*<[s]>>> to a nonzero
|
||
|
|
value beforehand to distinguish between failure and an empty string.
|
||
|
|
This implementation does not support <<s>> being NULL, nor overlapping
|
||
|
|
<<s>> and <<format>>.
|
||
|
|
|
||
|
|
<<wcsftime>> requires no supporting OS subroutines.
|
||
|
|
|
||
|
|
SEEALSO
|
||
|
|
<<strftime>>
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <time.h>
|
||
|
|
#include <wchar.h>
|
||
|
|
#define MAKE_WCSFTIME
|
||
|
|
#include "../time/strftime.c"
|