1 | /* |
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2 | * Copyright (c) 1991, 1993 |
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3 | * The Regents of the University of California. All rights reserved. |
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4 | * |
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5 | * This code is derived from software contributed to Berkeley by |
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6 | * Berkeley Software Design, Inc. |
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7 | * |
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8 | * Redistribution and use in source and binary forms, with or without |
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9 | * modification, are permitted provided that the following conditions |
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10 | * are met: |
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11 | * 1. Redistributions of source code must retain the above copyright |
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12 | * notice, this list of conditions and the following disclaimer. |
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13 | * 2. Redistributions in binary form must reproduce the above copyright |
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14 | * notice, this list of conditions and the following disclaimer in the |
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15 | * documentation and/or other materials provided with the distribution. |
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16 | * 3. All advertising materials mentioning features or use of this software |
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17 | * must display the following acknowledgement: |
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18 | * This product includes software developed by the University of |
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19 | * California, Berkeley and its contributors. |
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20 | * 4. Neither the name of the University nor the names of its contributors |
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21 | * may be used to endorse or promote products derived from this software |
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22 | * without specific prior written permission. |
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23 | * |
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24 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
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25 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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26 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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27 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
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28 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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29 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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30 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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31 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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32 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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33 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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34 | * SUCH DAMAGE. |
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35 | * |
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36 | * @(#)cdefs.h 8.8 (Berkeley) 1/9/95 |
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37 | */ |
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38 | |
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39 | #ifndef _CDEFS_H_ |
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40 | #define _CDEFS_H_ |
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41 | |
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42 | #if defined(__cplusplus) |
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43 | #define __BEGIN_DECLS extern "C" { |
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44 | #define __END_DECLS }; |
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45 | #else |
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46 | #define __BEGIN_DECLS |
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47 | #define __END_DECLS |
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48 | #endif |
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49 | |
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50 | /* |
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51 | * The __CONCAT macro is used to concatenate parts of symbol names, e.g. |
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52 | * with "#define OLD(foo) __CONCAT(old,foo)", OLD(foo) produces oldfoo. |
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53 | * The __CONCAT macro is a bit tricky -- make sure you don't put spaces |
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54 | * in between its arguments. __CONCAT can also concatenate double-quoted |
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55 | * strings produced by the __STRING macro, but this only works with ANSI C. |
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56 | */ |
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57 | #if defined(__STDC__) || defined(__cplusplus) |
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58 | #define __P(protos) protos /* full-blown ANSI C */ |
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59 | #define __CONCAT(x,y) x ## y |
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60 | #define __STRING(x) #x |
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61 | |
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62 | #define __const const /* define reserved names to standard */ |
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63 | #define __signed signed |
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64 | #define __volatile volatile |
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65 | #if defined(__cplusplus) |
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66 | #define __inline inline /* convert to C++ keyword */ |
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67 | #else |
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68 | #ifndef __GNUC__ |
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69 | #define __inline /* delete GCC keyword */ |
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70 | #endif /* !__GNUC__ */ |
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71 | #endif /* !__cplusplus */ |
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72 | |
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73 | #else /* !(__STDC__ || __cplusplus) */ |
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74 | #define __P(protos) () /* traditional C preprocessor */ |
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75 | #define __CONCAT(x,y) x/**/y |
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76 | #define __STRING(x) "x" |
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77 | |
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78 | #ifndef __GNUC__ |
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79 | #define __const /* delete pseudo-ANSI C keywords */ |
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80 | #define __inline |
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81 | #define __signed |
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82 | #define __volatile |
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83 | /* |
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84 | * In non-ANSI C environments, new programs will want ANSI-only C keywords |
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85 | * deleted from the program and old programs will want them left alone. |
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86 | * When using a compiler other than gcc, programs using the ANSI C keywords |
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87 | * const, inline etc. as normal identifiers should define -DNO_ANSI_KEYWORDS. |
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88 | * When using "gcc -traditional", we assume that this is the intent; if |
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89 | * __GNUC__ is defined but __STDC__ is not, we leave the new keywords alone. |
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90 | */ |
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91 | #ifndef NO_ANSI_KEYWORDS |
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92 | #define const /* delete ANSI C keywords */ |
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93 | #define inline |
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94 | #define signed |
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95 | #define volatile |
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96 | #endif |
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97 | #endif /* !__GNUC__ */ |
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98 | #endif /* !(__STDC__ || __cplusplus) */ |
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99 | |
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100 | /* |
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101 | * GCC1 and some versions of GCC2 declare dead (non-returning) and |
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102 | * pure (no side effects) functions using "volatile" and "const"; |
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103 | * unfortunately, these then cause warnings under "-ansi -pedantic". |
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104 | * GCC2 uses a new, peculiar __attribute__((attrs)) style. All of |
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105 | * these work for GNU C++ (modulo a slight glitch in the C++ grammar |
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106 | * in the distribution version of 2.5.5). |
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107 | */ |
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108 | #if !defined(__GNUC__) || __GNUC__ < 2 || \ |
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109 | (__GNUC__ == 2 && __GNUC_MINOR__ < 5) |
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110 | #define __attribute__(x) /* delete __attribute__ if non-gcc or gcc1 */ |
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111 | #if defined(__GNUC__) && !defined(__STRICT_ANSI__) |
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112 | #define __dead __volatile |
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113 | #define __pure __const |
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114 | #endif |
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115 | #endif |
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116 | |
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117 | /* Delete pseudo-keywords wherever they are not available or needed. */ |
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118 | #ifndef __dead |
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119 | #define __dead |
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120 | #define __pure |
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121 | #endif |
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122 | |
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123 | #endif /* !_CDEFS_H_ */ |
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