WCSTOIMAX(3)               POSIX Programmer's Manual              WCSTOIMAX(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
       wcstoimax, wcstoumax -- convert a wide-character string to an integer
       type

SSYYNNOOPPSSIISS
       #include <stddef.h>
       #include <inttypes.h>

       intmax_t wcstoimax(const wchar_t *restrict _n_p_t_r,
           wchar_t **restrict _e_n_d_p_t_r, int _b_a_s_e);
       uintmax_t wcstoumax(const wchar_t *restrict _n_p_t_r,
           wchar_t **restrict _e_n_d_p_t_r, int _b_a_s_e);

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.

       These functions shall be equivalent to the _w_c_s_t_o_l(), _w_c_s_t_o_l_l(),
       _w_c_s_t_o_u_l(), and _w_c_s_t_o_u_l_l() functions, respectively, except that the
       initial portion of the wide string shall be converted to iinnttmmaaxx__tt and
       uuiinnttmmaaxx__tt representation, respectively.

RREETTUURRNN VVAALLUUEE
       These functions shall return the converted value, if any.

       If no conversion could be performed, zero shall be returned. If the
       correct value is outside the range of representable values,
       {INTMAX_MAX}, {INTMAX_MIN}, or {UINTMAX_MAX} shall be returned
       (according to the return type and sign of the value, if any), and _e_r_r_n_o
       shall be set to [[EERRAANNGGEE]].

EERRRROORRSS
       These functions shall fail if:

       EEIINNVVAALL The value of _b_a_s_e is not supported.

       EERRAANNGGEE The value to be returned is not representable.

       These functions may fail if:

       EEIINNVVAALL No conversion could be performed.

       _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
       _w_c_s_t_o_l(), _w_c_s_t_o_u_l()

       The Base Definitions volume of POSIX.1-2017, <<iinnttttyyppeess..hh>>, <<ssttddddeeff..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                         WCSTOIMAX(3)
