1wcsftime(3C) Standard C Library Functions wcsftime(3C)
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6 wcsftime - convert date and time to wide character string
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9 #include <wchar.h>
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12 XPG4 and SUS
13 size_t wcsftime(wchar_t *wcs, size_t maxsize, const char *format,
14 const struct tm *timptr);
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17 Default and other standards
18 size_t wcsftime(wchar_t *restrict wcs, size_t maxsize,
19 const wchar_t *restrict format,
20 const struct tm *restrict timptr);
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24 The wcsftime() function is equivalent to the strftime(3C) function,
25 except that:
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27 o The argument wcs points to the initial element of an array
28 of wide-characters into which the generated output is to be
29 placed.
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31 o The argument maxsize indicates the maximum number of wide-
32 characters to be placed in the output array.
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34 o The argument format is a wide-character string and the con‐
35 version specifications are replaced by corresponding
36 sequences of wide-characters.
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38 o The return value indicates the number of wide-characters
39 placed in the output array.
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42 If copying takes place between objects that overlap, the behavior is
43 undefined.
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46 If the total number of resulting wide character codes (including the
47 terminating null wide-character code) is no more than maxsize, wcsf‐
48 time() returns the number of wide-character codes placed into the
49 array pointed to by wcs, not including the terminating null wide-char‐
50 acter code. Otherwise, 0 is returned and the contents of the array are
51 indeterminate.
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54 The wcfstime() function uses malloc(3C) and should malloc() fail, errno
55 will be set by malloc().
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58 See attributes(5) for descriptions of the following attributes:
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63 ┌─────────────────────────────┬─────────────────────────────┐
64 │ATTRIBUTE TYPE │ATTRIBUTE VALUE │
65 ├─────────────────────────────┼─────────────────────────────┤
66 │CSI │Enabled │
67 ├─────────────────────────────┼─────────────────────────────┤
68 │Interface Stability │Standard │
69 ├─────────────────────────────┼─────────────────────────────┤
70 │MT-Level │MT-Safe with exceptions │
71 └─────────────────────────────┴─────────────────────────────┘
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74 malloc(3C), setlocale(3C), strftime(3C), attributes(5), standards(5)
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77 The wcsftime() function can be used safely in multithreaded applica‐
78 tions, as long as setlocale(3C) is not being called to change the
79 locale.
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83SunOS 5.11 1 Nov 2003 wcsftime(3C)