include/begin_code.h
author Sam Lantinga <slouken@libsdl.org>
Sun, 23 Sep 2001 18:10:59 +0000
changeset 189 175917167aac
parent 187 94645dc9479b
child 195 3669d47b07d3
permissions -rw-r--r--
Date: Thu, 13 Sep 2001 14:14:42 -0400
From: "David Chait" <davebytes@hotmail.com>
Subject: sdlmods.zip
-- Message: 502 -- Next: 503 N --------------------------------------------

now bracketed with (MWERKS && macintosh), so it'll work under metrowerks under any kind of mac build. Project Builder probably uses pack properly as it is GCC under the covers, so not worrying about it... :)

it sets packing to 68K 4-byte alignment, and turns on enumsalwaysint. resets them both to project defaults when done. note that if a project sets these things in a header and expects the settings to last throughout a C file (which is a nasty thing to do), it won't work. I think there's an overall-state push/pop system, but it's a deprecated interface so I'm loathe to use it...
     1 /*
     2     SDL - Simple DirectMedia Layer
     3     Copyright (C) 1997, 1998, 1999, 2000, 2001  Sam Lantinga
     4 
     5     This library is free software; you can redistribute it and/or
     6     modify it under the terms of the GNU Library General Public
     7     License as published by the Free Software Foundation; either
     8     version 2 of the License, or (at your option) any later version.
     9 
    10     This library is distributed in the hope that it will be useful,
    11     but WITHOUT ANY WARRANTY; without even the implied warranty of
    12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    13     Library General Public License for more details.
    14 
    15     You should have received a copy of the GNU Library General Public
    16     License along with this library; if not, write to the Free
    17     Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
    18 
    19     Sam Lantinga
    20     slouken@devolution.com
    21 */
    22 
    23 /* This file sets things up for C dynamic library function definitions,
    24    static inlined functions, and structures aligned at 4-byte alignment.
    25    If you don't like ugly C preprocessor code, don't look at this file. :)
    26 */
    27 
    28 /* This shouldn't be nested -- included it around code only. */
    29 #ifdef _begin_code_h
    30 #error Nested inclusion of begin_code.h
    31 #endif
    32 #define _begin_code_h
    33 
    34 /* Some compilers use a special export keyword */
    35 #ifndef DECLSPEC
    36 # ifdef __BEOS__
    37 #  if defined(__GNUC__)
    38 #   define DECLSPEC	__declspec(dllexport)
    39 #  else
    40 #   define DECLSPEC	__declspec(export)
    41 #  endif
    42 # else
    43 # ifdef WIN32
    44 #  define DECLSPEC	__declspec(dllexport)
    45 # else
    46 #  define DECLSPEC
    47 # endif
    48 # endif
    49 #endif
    50 
    51 /* Removed DECLSPEC on Symbian OS because SDL cannot be a DLL in EPOC */
    52 #ifdef __SYMBIAN32__ 
    53 #undef DECLSPEC
    54 #define DECLSPEC
    55 #endif /* __SYMBIAN32__ */
    56 
    57 /* Force structure packing at 4 byte alignment.
    58    This is necessary if the header is included in code which has structure
    59    packing set to an alternate value, say for loading structures from disk.
    60    The packing is reset to the previous value in close_code.h
    61  */
    62 #if defined(_MSC_VER) || defined(__MWERKS__) || defined(__WATCOMC__) || defined(__BORLANDC__) || defined(__APPLE__)
    63 #ifdef _MSC_VER
    64 #pragma warning(disable: 4103)
    65 #endif
    66 #ifdef __BORLANDC__
    67 #pragma nopackwarning
    68 #endif
    69 #if (defined(__MWERKS__) && defined(macintosh))
    70 #pragma options align=mac68k4byte
    71 #pragma enumsalwaysint on
    72 #else
    73 #pragma pack(push,4)
    74 #endif
    75 #endif /* Compiler needs structure packing set */
    76 
    77 /* Set up compiler-specific options for inlining functions */
    78 #ifndef SDL_INLINE_OKAY
    79 #ifdef __GNUC__
    80 #define SDL_INLINE_OKAY
    81 #else
    82 /* Add any special compiler-specific cases here */
    83 #if defined(_MSC_VER)
    84 #define __inline__	__inline
    85 #define SDL_INLINE_OKAY
    86 #else
    87 #if !defined(__MRC__) && !defined(_SGI_SOURCE)
    88 #define __inline__ inline
    89 #define SDL_INLINE_OKAY
    90 #endif /* Not a funky compiler */
    91 #endif /* Visual C++ */
    92 #endif /* GNU C */
    93 #endif /* SDL_INLINE_OKAY */
    94 
    95 /* If inlining isn't supported, remove "__inline__", turning static
    96    inlined functions into static functions (resulting in code bloat
    97    in all files which include the offending header files)
    98 */
    99 #ifndef SDL_INLINE_OKAY
   100 #define __inline__
   101 #endif
   102