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P99
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P99
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00001 /* This may look like nonsense, but it really is -*- mode: C -*- */ 00002 /* */ 00003 /* Except of parts copied from previous work and as explicitly stated below, */ 00004 /* the author and copyright holder for this work is */ 00005 /* (C) copyright 2010-2012 Jens Gustedt, INRIA, France */ 00006 /* */ 00007 /* This file is free software; it is part of the P99 project. */ 00008 /* You can redistribute it and/or modify it under the terms of the QPL as */ 00009 /* given in the file LICENSE. It is distributed without any warranty; */ 00010 /* without even the implied warranty of merchantability or fitness for a */ 00011 /* particular purpose. */ 00012 /* */ 00013 #ifndef P99_ENUM_H_ 00014 # define P99_ENUM_H_ 00015 00016 #include "p99_for.h" 00017 00023 #define P00_ENUM_CASE(X) case X: return P99_STRINGIFY(X) 00024 00025 #define P00_ENUM_PARSE(C) \ 00026 if (!memcmp(P99_STRINGIFY(C), p00_s, p00_len)) { \ 00027 ++p00_c; \ 00028 p00_ret = C; \ 00029 } 00030 00031 00032 00033 #ifdef P00_DOXYGEN 00034 00038 #define P99_DECLARE_ENUM_GETNAME(T, ...) \ 00039 \ 00040 inline char const* P99_PASTE2(T, _getname)(T p00_x) 00041 00045 #define P99_DECLARE_ENUM_PARSE(T, ...) \ 00046 \ 00047 inline T P99_PASTE2(T, _parse)(char const* p00_s) 00048 #else 00049 P00_DOCUMENT_TYPE_ARGUMENT(P99_DECLARE_ENUM_GETNAME, 0) 00050 P00_DOCUMENT_DECLARATION_ARGUMENT(P99_DECLARE_ENUM_GETNAME, 1) 00051 P00_DOCUMENT_DECLARATION_ARGUMENT(P99_DECLARE_ENUM_GETNAME, 2) 00052 P00_DOCUMENT_DECLARATION_ARGUMENT(P99_DECLARE_ENUM_GETNAME, 3) 00053 #define P99_DECLARE_ENUM_GETNAME(T, ...) \ 00054 p99_inline \ 00055 char const* P99_PASTE2(T, _getname)(T p00_x) { \ 00056 switch ((uintmax_t)p00_x) { \ 00057 P99_SEP(P00_ENUM_CASE, __VA_ARGS__); \ 00058 default: return "((" #T ")unknown value)"; \ 00059 } \ 00060 } \ 00061 P99_MACRO_END(declare_enum_getname, T) 00062 00063 P00_DOCUMENT_TYPE_ARGUMENT(P99_DECLARE_ENUM_PARSE, 0) 00064 P00_DOCUMENT_DECLARATION_ARGUMENT(P99_DECLARE_ENUM_PARSE, 1) 00065 P00_DOCUMENT_DECLARATION_ARGUMENT(P99_DECLARE_ENUM_PARSE, 2) 00066 P00_DOCUMENT_DECLARATION_ARGUMENT(P99_DECLARE_ENUM_PARSE, 3) 00067 #define P99_DECLARE_ENUM_PARSE(T, ...) \ 00068 p99_inline \ 00069 T P99_PASTE2(T, _parse)(char const p00_s[]) { \ 00070 T p00_ret = P99_PASTE2(T, _amount); \ 00071 if (p00_s) { \ 00072 size_t p00_c = 0; \ 00073 size_t const p00_len = strlen(p00_s); \ 00074 P99_SEP(P00_ENUM_PARSE, __VA_ARGS__); \ 00075 if (p00_c > 1) p00_ret = P99_PASTE2(T, _amount); \ 00076 } \ 00077 return p00_ret; \ 00078 } \ 00079 P99_MACRO_END(declare_enum_parse, T) 00080 #endif 00081 00082 #ifdef DOXYGEN 00083 00123 P00_DOCUMENT_IDENTIFIER_ARGUMENT(P99_DECLARE_ENUM, 0) 00124 P00_DOCUMENT_DECLARATION_ARGUMENT(P99_DECLARE_ENUM, 1) 00125 P00_DOCUMENT_DECLARATION_ARGUMENT(P99_DECLARE_ENUM, 2) 00126 P00_DOCUMENT_DECLARATION_ARGUMENT(P99_DECLARE_ENUM, 3) 00127 #define P99_DECLARE_ENUM(T, ...) \ 00128 \ 00129 enum T { __VA_ARGS__ , \ 00130 \ 00131 P99_PASTE2(T, _amount), \ 00132 \ 00133 P99_PASTE2(T, _max) = ((size_t)(P99_PASTE2(T, _amount)) - 1u), \ 00134 \ 00135 P99_PASTE2(T, _min) = 0 \ 00136 }; \ 00137 \ 00138 \ 00139 typedef enum T T; \ 00140 P99_DECLARE_ENUM_GETNAME(T, __VA_ARGS__); \ 00141 P99_DECLARE_ENUM_PARSE(T, __VA_ARGS__) 00142 #else 00143 P00_DOCUMENT_IDENTIFIER_ARGUMENT(P99_DECLARE_ENUM, 0) 00144 P00_DOCUMENT_DECLARATION_ARGUMENT(P99_DECLARE_ENUM, 1) 00145 P00_DOCUMENT_DECLARATION_ARGUMENT(P99_DECLARE_ENUM, 2) 00146 P00_DOCUMENT_DECLARATION_ARGUMENT(P99_DECLARE_ENUM, 3) 00147 #define P99_DECLARE_ENUM(T, ...) \ 00148 typedef enum T { __VA_ARGS__ , \ 00149 \ 00150 P99_PASTE2(T, _amount), \ 00151 \ 00152 P99_PASTE2(T, _max) = ((size_t)(P99_PASTE2(T, _amount)) - 1u), \ 00153 \ 00154 P99_PASTE2(T, _min) = 0 \ 00155 } T; \ 00156 P99_DECLARE_ENUM_GETNAME(T, __VA_ARGS__); \ 00157 P99_DECLARE_ENUM_PARSE(T, __VA_ARGS__) 00158 #endif 00159 00165 P00_DOCUMENT_TYPE_ARGUMENT(P99_DEFINE_ENUM, 0) 00166 #define P99_DEFINE_ENUM(T) \ 00167 P99_INSTANTIATE(char const*, P99_PASTE2(T, _getname), T); \ 00168 P99_INSTANTIATE(T, P99_PASTE2(T, _parse), char const*) 00169 00170 p99_inline 00171 char const* bool_getname(bool p00_x) { 00172 switch ((uintmax_t)p00_x) { 00173 case 0: return "false"; 00174 case 1: return "true"; 00175 default: return "((bool)unknown value)"; 00176 } 00177 } 00178 00191 typedef enum p99_endianness { 00192 p99_big_endian = 0x01020304u, 00193 p99_little_endian = 0x04030201u, 00194 p99_pdp_endian = 0x02010403u 00195 } p99_endianness; 00196 00197 P99_DECLARE_ENUM_GETNAME( 00198 p99_endianness, 00199 p99_big_endian, 00200 p99_little_endian, 00201 p99_pdp_endian 00202 ); 00203 00208 #define P99_ENDIANNESS ((p99_endianness)P99_HTON(4, UINT32_C(0x01020304))) 00209 00214 #endif /* !P99_ENUM_H_ */
1.7.6.1
