WCSFTIME(3)                POSIX Programmer's Manual               WCSFTIME(3)



PPRROOLLOOGG
       This manual page is part of the POSIX Programmer's Manual.  The OS
       implementation of this interface may differ (consult the corresponding
       OS manual page for details of OS behavior), or the interface may not be
       implemented on OS.

NNAAMMEE
       wcsftime -- convert date and time to a wide-character string

SSYYNNOOPPSSIISS
       #include <wchar.h>

       size_t wcsftime(wchar_t *restrict _w_c_s, size_t _m_a_x_s_i_z_e,
           const wchar_t *restrict _f_o_r_m_a_t, const struct tm *restrict _t_i_m_e_p_t_r);

DDEESSCCRRIIPPTTIIOONN
       The functionality described on this reference page is aligned with the
       ISO C standard. Any conflict between the requirements described here
       and the ISO C standard is unintentional. This volume of POSIX.1-2017
       defers to the ISO C standard.

       The _w_c_s_f_t_i_m_e() function shall be equivalent to the _s_t_r_f_t_i_m_e() function,
       except that:

        *  The argument _w_c_s points to the initial element of an array of wide
           characters into which the generated output is to be placed.

        *  The argument _m_a_x_s_i_z_e indicates the maximum number of wide
           characters to be placed in the output array.

        *  The argument _f_o_r_m_a_t is a wide-character string and the conversion
           specifications are replaced by corresponding sequences of wide
           characters.  It is unspecified whether an encoding error occurs if
           the format string contains wwcchhaarr__tt values that do not correspond to
           members of the character set of the current locale.

        *  Field widths specify the number of wide characters instead of the
           number of bytes.

        *  The return value indicates the number of wide characters placed in
           the output array.

       If copying takes place between objects that overlap, the behavior is
       undefined.

RREETTUURRNN VVAALLUUEE
       If the total number of resulting wide-character codes including the
       terminating null wide-character code is no more than _m_a_x_s_i_z_e,
       _w_c_s_f_t_i_m_e() shall return the number of wide-character codes placed into
       the array pointed to by _w_c_s, not including the terminating null wide-
       character code. Otherwise, zero is returned and the contents of the
       array are unspecified.

EERRRROORRSS
       No errors are defined.

       _T_h_e _f_o_l_l_o_w_i_n_g _s_e_c_t_i_o_n_s _a_r_e _i_n_f_o_r_m_a_t_i_v_e_.

EEXXAAMMPPLLEESS
       None.

AAPPPPLLIICCAATTIIOONN UUSSAAGGEE
       None.

RRAATTIIOONNAALLEE
       None.

FFUUTTUURREE DDIIRREECCTTIIOONNSS
       None.

SSEEEE AALLSSOO
       _s_t_r_f_t_i_m_e()

       The Base Definitions volume of POSIX.1-2017, <<wwcchhaarr..hh>>

CCOOPPYYRRIIGGHHTT
       Portions of this text are reprinted and reproduced in electronic form
       from IEEE Std 1003.1-2017, Standard for Information Technology --
       Portable Operating System Interface (POSIX), The Open Group Base
       Specifications Issue 7, 2018 Edition, Copyright (C) 2018 by the
       Institute of Electrical and Electronics Engineers, Inc and The Open
       Group.  In the event of any discrepancy between this version and the
       original IEEE and The Open Group Standard, the original IEEE and The
       Open Group Standard is the referee document. The original Standard can
       be obtained online at http://www.opengroup.org/unix/online.html .

       Any typographical or formatting errors that appear in this page are
       most likely to have been introduced during the conversion of the source
       files to man page format. To report such errors, see
       https://www.kernel.org/doc/man-pages/reporting_bugs.html .



IEEE/The Open Group                  2017                          WCSFTIME(3)
