# File : terminal_interface-curses-trace.adb

    ------------------------------------------------------------------------------
    --                                                                          --
    --                           GNAT ncurses Binding                           --
    --                                                                          --
    --                      Terminal_Interface.Curses.Trace                     --
    --                                                                          --
    --                                 B O D Y                                  --
    --                                                                          --
    ------------------------------------------------------------------------------
    -- Copyright (c) 2000 Free Software Foundation, Inc.                        --
    --                                                                          --
    -- Permission is hereby granted, free of charge, to any person obtaining a  --
    -- copy of this software and associated documentation files (the            --
    -- "Software"), to deal in the Software without restriction, including      --
    -- without limitation the rights to use, copy, modify, merge, publish,      --
    -- distribute, distribute with modifications, sublicense, and/or sell       --
    -- copies of the Software, and to permit persons to whom the Software is    --
    -- furnished to do so, subject to the following conditions:                 --
    --                                                                          --
    -- The above copyright notice and this permission notice shall be included  --
    -- in all copies or substantial portions of the Software.                   --
    --                                                                          --
    -- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  --
    -- OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               --
    -- MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.   --
    -- IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   --
    -- DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR    --
    -- OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR    --
    -- THE USE OR OTHER DEALINGS IN THE SOFTWARE.                               --
    --                                                                          --
    -- Except as contained in this notice, the name(s) of the above copyright   --
    -- holders shall not be used in advertising or otherwise to promote the     --
    -- sale, use or other dealings in this Software without prior written       --
    -- authorization.                                                           --
    ------------------------------------------------------------------------------
    --  Author: Eugene V. Melaragno <aldomel@ix.netcom.com> 2000
    --  Version Control:
    --  @Revision: 1.1 @
    --  Binding Version 01.00
    ------------------------------------------------------------------------------
    with Interfaces.C; use Interfaces.C;
    with Terminal_Interface.Curses.Aux; use Terminal_Interface.Curses.Aux;
    with Ada.Unchecked_Conversion;

    package body Terminal_Interface.Curses.Trace is

       type C_TraceType is new C_UInt;

       function TraceAda_To_TraceC is new
         Ada.Unchecked_Conversion (Source => Trace_Attribute_Set,
                                   Target => C_TraceType);

       procedure Trace_On (x : Trace_Attribute_Set) is
          procedure traceC (y : C_TraceType);
          pragma Import (C, traceC, "trace");
       begin
          traceC (TraceAda_To_TraceC (x));
       end Trace_On;

       --  75. (12) A C function that takes a variable number of arguments can
       --      correspond to several Ada subprograms, taking various specific
       --      numbers and types of parameters.

       procedure Trace_Put (str : String) is
          procedure tracef (format : char_array; s : char_array);
          pragma Import (C, tracef, "_tracef");
          Txt    : char_array (0 .. str'Length);
          Length : size_t;
          formatstr : constant String := "%s" &  ASCII.Nul;
          formattxt : char_array (0 .. formatstr'Length);
       begin
          To_C (formatstr, formattxt, Length);
          To_C (str, Txt, Length);
          tracef (formattxt, Txt);
       end Trace_Put;

    end Terminal_Interface.Curses.Trace;