nl_types.h(3)              POSIX Programmer's Manual             nl_types.h(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
       nl_types.h -- data types

SSYYNNOOPPSSIISS
       #include <nl_types.h>

DDEESSCCRRIIPPTTIIOONN
       The _<_n_l___t_y_p_e_s_._h_> header shall define at least the following types:

       nnll__ccaattdd       Used by the message catalog functions _c_a_t_o_p_e_n(),
                     _c_a_t_g_e_t_s(), and _c_a_t_c_l_o_s_e() to identify a catalog
                     descriptor.

       nnll__iitteemm       Used by _n_l___l_a_n_g_i_n_f_o() to identify items of _l_a_n_g_i_n_f_o data.
                     Values of objects of type nnll__iitteemm are defined in
                     _<_l_a_n_g_i_n_f_o_._h_>.

       The _<_n_l___t_y_p_e_s_._h_> header shall define at least the following symbolic
       constants:

       NL_SETD       Used by _g_e_n_c_a_t when no $_s_e_t directive is specified in a
                     message text source file. This constant can be passed as
                     the value of _s_e_t___i_d on subsequent calls to _c_a_t_g_e_t_s()
                     (that is, to retrieve messages from the default message
                     set). The value of NL_SETD is implementation-defined.

       NL_CAT_LOCALE Value that must be passed as the _o_f_l_a_g argument to
                     _c_a_t_o_p_e_n() to ensure that message catalog selection
                     depends on the _L_C___M_E_S_S_A_G_E_S locale category, rather than
                     directly on the _L_A_N_G environment variable.

       The following shall be declared as functions and may also be defined as
       macros. Function prototypes shall be provided.


           int       catclose(nl_catd);
           char     *catgets(nl_catd, int, int, const char *);
           nl_catd   catopen(const char *, int);

       _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_.

AAPPPPLLIICCAATTIIOONN UUSSAAGGEE
       None.

RRAATTIIOONNAALLEE
       None.

FFUUTTUURREE DDIIRREECCTTIIOONNSS
       None.

SSEEEE AALLSSOO
       <<llaannggiinnffoo..hh>>

       The System Interfaces volume of POSIX.1-2017, _c_a_t_c_l_o_s_e(), _c_a_t_g_e_t_s(),
       _c_a_t_o_p_e_n(), _n_l___l_a_n_g_i_n_f_o()

       The Shell and Utilities volume of POSIX.1-2017, _g_e_n_c_a_t

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                        nl_types.h(3)
