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[/] [openrisc/] [trunk/] [gnu-src/] [newlib-1.18.0/] [newlib/] [libc/] [time/] [wcsftime.c] - Rev 527
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/* * 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"
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