1 | /*
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2 | * mruby => TECS brige
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3 | *
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4 | * Copyright (C) 2008-2012 by TOPPERS Project
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5 | *--
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6 | * 上記著作権者は,以下の(1)(4)の条件を満たす場合に限り,本ソフトウェ
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7 | * ア(本ソフトウェアを改変したものを含む.以下同じ)を使用・複製・改
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8 | * 変・再配布(以下,利用と呼ぶ)することを無償で許諾する.
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9 | * (1) 本ソフトウェアをソースコードの形で利用する場合には,上記の著作
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10 | * 権表示,この利用条件および下記の無保証規定が,そのままの形でソー
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11 | * スコード中に含まれていること.
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12 | * (2) 本ソフトウェアを,ライブラリ形式など,他のソフトウェア開発に使
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13 | * 用できる形で再配布する場合には,再配布に伴うドキュメント(利用
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14 | * 者マニュアルなど)に,上記の著作権表示,この利用条件および下記
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15 | * の無保証規定を掲載すること.
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16 | * (3) 本ソフトウェアを,機器に組み込むなど,他のソフトウェア開発に使
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17 | * 用できない形で再配布する場合には,次のいずれかの条件を満たすこ
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18 | * と.
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19 | * (a) 再配布に伴うドキュメント(利用者マニュアルなど)に,上記の著
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20 | * 作権表示,この利用条件および下記の無保証規定を掲載すること.
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21 | * (b) 再配布の形態を,別に定める方法によって,TOPPERSプロジェクトに
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22 | * 報告すること.
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23 | * (4) 本ソフトウェアの利用により直接的または間接的に生じるいかなる損
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24 | * 害からも,上記著作権者およびTOPPERSプロジェクトを免責すること.
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25 | * また,本ソフトウェアのユーザまたはエンドユーザからのいかなる理
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26 | * 由に基づく請求からも,上記著作権者およびTOPPERSプロジェクトを
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27 | * 免責すること.
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28 | *
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29 | * 本ソフトウェアは,無保証で提供されているものである.上記著作権者お
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30 | * よびTOPPERSプロジェクトは,本ソフトウェアに関して,特定の使用目的
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31 | * に対する適合性も含めて,いかなる保証も行わない.また,本ソフトウェ
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32 | * アの利用により直接的または間接的に生じたいかなる損害に関しても,そ
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33 | * の責任を負わない.
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34 | *
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35 | * $Id$
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36 | */
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37 |
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38 | #ifndef TECSPointer_h__
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39 | #define TECSPointer_h__
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40 |
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41 | #include <string.h>
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42 | #include <stdint.h>
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43 | #include <limits.h>
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44 |
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45 | #ifndef CHAR_T_DEFINED
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46 | typedef int bool_t;
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47 | typedef char char_t;
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48 | typedef double double64_t;
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49 | typedef float float32_t;
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50 | #endif /* CHAR_T_DEFINED */
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51 |
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52 | //// define Pointer classes ////
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53 | #define POINTER_BODY( Type, TYPE ) \
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54 | \
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55 | struct Type ## PointerBody { \
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56 | uint32_t length; \
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57 | TYPE buf[ /* length */ ]; \
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58 | };
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59 |
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60 |
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61 | // struct TypePointerBody
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62 | POINTER_BODY( Bool, bool_t ) /* struct BoolPointerBody */
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63 | POINTER_BODY( Double64, double64_t )/* struct Double64PointerBody */
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64 | POINTER_BODY( Float32, float32_t ) /* struct Float32PointerBody */
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65 |
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66 | POINTER_BODY( Int8, int8_t ) /* struct Int8PointerBody */
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67 | POINTER_BODY( Int16, int16_t ) /* struct Int16PointerBody */
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68 | POINTER_BODY( Int32, int32_t ) /* struct Int32PointerBody */
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69 | POINTER_BODY( Int64, int64_t ) /* struct Int64PointerBody */
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70 | POINTER_BODY( Char, char_t ) /* struct CharPointerBody */
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71 | POINTER_BODY( Int, int ) /* struct IntPointerBody */
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72 | POINTER_BODY( Short, short ) /* struct ShortPointerBody */
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73 | POINTER_BODY( Long, long ) /* struct LongPointerBody */
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74 |
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75 | POINTER_BODY( UInt8, uint8_t ) /* struct UInt8PointerBody */
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76 | POINTER_BODY( UInt16, uint16_t ) /* struct UInt16PointerBody */
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77 | POINTER_BODY( UInt32, uint32_t ) /* struct UInt32PointerBody */
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78 | POINTER_BODY( UInt64, uint64_t ) /* struct UInt64PointerBody */
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79 | POINTER_BODY( UChar, uint8_t ) /* struct UCharPointerBody */
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80 | POINTER_BODY( UInt, unsigned int ) /* struct UIntPointerBody */
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81 | POINTER_BODY( UShort, unsigned short ) /* struct UShortPointerBody */
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82 | POINTER_BODY( ULong, unsigned long ) /* struct ULongPointerBody */
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83 |
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84 | POINTER_BODY( SChar, char_t ) /* struct SCharPointerBody */
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85 |
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86 | // ■ TECS_NO_VAL_CHECK を define すると、値チェックを省略する
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87 | #ifndef TECS_NO_VAL_CHECK
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88 | #define VALCHECK_INT(Type, TYPE, type ) \
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89 | /* check before assigning mrb_int val to intN_t */ \
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90 | static inline void \
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91 | VALCHECK_ ## Type( mrb_state *mrb, mrb_int val ) \
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92 | { \
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93 | if( sizeof( mrb_int ) > sizeof( type ) ){ \
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94 | if( val > TYPE ## _MAX || val < TYPE ## _MIN ) \
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95 | mrb_raise(mrb, E_ARGUMENT_ERROR, "too large or too small for " #type "_t"); \
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96 | } \
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97 | }
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98 | #define VALCHECK_MRB_INT(Type, TYPE, type ) \
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99 | /* check before assigning val (intN_t) to mrb_int */ \
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100 | static inline void \
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101 | VALCHECK_MRB_ ## Type( mrb_state *mrb, type val ) \
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102 | { \
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103 | if( sizeof( type ) > sizeof( mrb_int ) ){ \
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104 | if( val > TYPE ## _MAX \
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105 | || val < TYPE ## _MIN ) \
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106 | /* '=' unecessary for negative value */ \
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107 | /* ignore warning on int32_t */ \
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108 | mrb_raise(mrb, E_ARGUMENT_ERROR, "too large or too small for mrb_int"); \
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109 | } \
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110 | }
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111 |
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112 | #define VALCHECK_UINT(Type, TYPE, type ) \
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113 | /* check before assigning mrb_int val to intN_t */ \
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114 | static inline void \
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115 | VALCHECK_ ## Type( mrb_state *mrb, mrb_int val ) \
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116 | { \
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117 | if( sizeof( mrb_int ) > sizeof( type ) ){ \
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118 | if( val > TYPE ## _MAX || val < 0 ) \
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119 | mrb_raise(mrb, E_ARGUMENT_ERROR, "too large or too small for " #type "_t"); \
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120 | } \
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121 | }
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122 | #define VALCHECK_MRB_UINT(Type, TYPE, type ) \
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123 | /* check before assigning val (intN_t) to mrb_int */ \
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124 | static inline void \
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125 | VALCHECK_MRB_ ## Type( mrb_state *mrb, type val ) \
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126 | { \
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127 | if( sizeof( type ) > sizeof( mrb_int ) ){ \
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128 | if( val > TYPE ## _MAX ) \
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129 | /* '=' unecessary for negative value */ \
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130 | /* ignore warning on int32_t */ \
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131 | mrb_raise(mrb, E_ARGUMENT_ERROR, "too large or too small for mrb_int"); \
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132 | } \
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133 | }
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134 | #else // TECS_NO_VAL_CHECK
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135 |
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136 | #define VALCHECK_INT(Type, TYPE, type )
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137 | #define VALCHECK_UINT(Type, TYPE, type )
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138 |
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139 | #endif // TECS_NO_VAL_CHECK
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140 |
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141 | // define VALCHECK function
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142 | #define VALCHECK_Bool( mrb, val )
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143 | #define VALCHECK_MRB_Bool( mrb, val )
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144 |
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145 | VALCHECK_INT( Int8, INT8, int8_t )
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146 | VALCHECK_MRB_INT( Int8, INT8, int8_t )
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147 | VALCHECK_INT( Int16, INT16, int16_t )
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148 | VALCHECK_MRB_INT( Int16, INT16, int16_t )
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149 | VALCHECK_UINT( UInt8, UINT8, uint8_t )
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150 | #define VALCHECK_MRB_UInt8(mrb,val)
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151 | VALCHECK_UINT( UInt16, UINT16, uint16_t )
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152 | #define VALCHECK_MRB_UInt16(mrb,val)
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153 | VALCHECK_INT( Int32, INT32, int32_t )
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154 | #define VALCHECK_MRB_Int32(mrb,val)
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155 | VALCHECK_UINT( UInt32, UINT32, uint32_t )
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156 | #define VALCHECK_MRB_UInt32(mrb,val)
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157 |
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158 | VALCHECK_INT( Int64, INT64, int64_t )
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159 | VALCHECK_UINT( UInt64, UINT64, uint64_t )
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160 | #ifndef mrb_int_IS_int64
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161 | // ■ int 32 bit を仮定している. 64 bit であれば mrb_int_IS_64 を define する
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162 | VALCHECK_MRB_INT( Int64, INT64, int64_t )
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163 | VALCHECK_MRB_UINT( UInt64, UINT64, uint64_t )
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164 | #else
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165 | #define VALCHECK_MRB_Int64(mrb,val) // 範囲チェックが無意味であるため、警告が出るのを回避する
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166 | #define VALCHECK_MRB_UInt64(mrb,val) // 範囲チェックが無意味であるため、警告が出るのを回避する
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167 | #endif
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168 |
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169 | #ifndef TECS_NO_VAL_CHECK
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170 | // ■ char_t は unsigned とみなす
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171 | static inline void
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172 | VALCHECK_Char( mrb_state *mrb, mrb_int val )
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173 | {
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174 | if( val > 0xff || val < 0 )
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175 | mrb_raise(mrb, E_ARGUMENT_ERROR, "too large or too small for char_t");
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176 | }
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177 | #define VALCHECK_MRB_Char( mrb, val )
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178 |
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179 | VALCHECK_INT( Short, SHRT, short )
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180 | #define VALCHECK_MRB_Short( mrb, val )
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181 |
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182 | VALCHECK_INT( Int, INT, int )
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183 | #define VALCHECK_MRB_Int( mrb, val )
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184 |
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185 | VALCHECK_INT( Long, LONG, long )
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186 | #define VALCHECK_MRB_Long( mrb, val )
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187 |
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188 | VALCHECK_INT( SChar, SCHAR, signed char )
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189 | #define VALCHECK_MRB_SChar( mrb, val )
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190 |
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191 | VALCHECK_UINT( UChar, UCHAR, unsigned char )
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192 | #define VALCHECK_MRB_UChar( mrb, val )
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193 |
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194 | VALCHECK_UINT( UInt, UINT, unsigned int )
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195 | #define VALCHECK_MRB_UInt( mrb, val )
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196 |
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197 | VALCHECK_UINT( UShort, USHRT, unsigned short )
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198 | #define VALCHECK_MRB_UShort( mrb, val )
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199 |
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200 | VALCHECK_UINT( ULong, ULONG, unsigned long )
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201 | #define VALCHECK_MRB_ULong( mrb, val )
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202 |
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203 | #else // TECS_NO_VAL_CHECK
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204 |
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205 | #define VALCHECK_Char( mrb, val )
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206 | #define VALCHECK_MRB_Char( mrb, val )
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207 | #define VALCHECK_Int( mrb, val )
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208 | #define VALCHECK_MRB_Int( mrb, val )
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209 | #define VALCHECK_Short( mrb, val )
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210 | #define VALCHECK_MRB_Short( mrb, val )
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211 | #define VALCHECK_Long( mrb, val )
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212 | #define VALCHECK_MRB_Long( mrb, val )
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213 | #define VALCHECK_SChar( mrb, val )
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214 | #define VALCHECK_MRB_SChar( mrb, val )
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215 | #define VALCHECK_UChar( mrb, val )
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216 | #define VALCHECK_MRB_UChar( mrb, val )
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217 | #define VALCHECK_UInt( mrb, val )
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218 | #define VALCHECK_MRB_UInt( mrb, val )
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219 | #define VALCHECK_UShort( mrb, val )
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220 | #define VALCHECK_MRB_UShort( mrb, val )
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221 | #define VALCHECK_ULong( mrb, val )
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222 | #define VALCHECK_MRB_ULong( mrb, val )
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223 |
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224 | #endif // TECS_NO_VAL_CHECK
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225 |
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226 | #define CHECK_AND_GET_POINTER( Type, type ) \
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227 | type *CheckAndGet ## Type ## Pointer( mrb_state *mrb, mrb_value value, int32_t len ) \
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228 | { \
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229 | if( mrb_type(value) != MRB_TT_DATA \
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230 | || DATA_TYPE( value ) == 0 \
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231 | || strcmp( DATA_TYPE( value )->struct_name, "TECS::" #Type "Pointer" ) ) \
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232 | mrb_raise(mrb, E_TYPE_ERROR, "not PointerType or unexpected PointerType"); \
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233 | if( len != -1 && ((struct Type ## PointerBody *)DATA_PTR( value ))->length < len ) \
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234 | mrb_raise(mrb, E_ARGUMENT_ERROR, "size_is too short"); \
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235 | return ((struct Type##PointerBody*)(DATA_PTR(value)))->buf; \
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236 | } \
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237 | \
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238 | type *CheckAndGet ## Type ## PointerNullable( mrb_state *mrb, mrb_value value, int32_t len ) \
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239 | { \
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240 | if( mrb_nil_p(value) ) \
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241 | return NULL; \
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242 | return CheckAndGet ## Type ## Pointer( mrb, value, len ); \
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243 | }
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244 |
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245 |
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246 | /*
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247 | * CHECK_AND_GET_CHAR_POINTER & CHECK_AND_GET_CHAR_POINTER_MOD are used
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248 | * in case that the macro TECS_Use_MrbString_for_CharPointer is defined.
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249 | * This does not work as str_modify is static funcion.
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250 | */
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251 | #define CHECK_AND_GET_CHAR_POINTER( Type, type ) \
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252 | type *CheckAndGet ## Type ## Pointer( mrb_state *mrb, mrb_value value, int32_t len ) \
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253 | { \
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254 | if( mrb_type(value) != MRB_TT_STRING ) \
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255 | mrb_raise(mrb, E_TYPE_ERROR, "not String Type"); \
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256 | if( len != -1 && RSTRING_LEN(value) < len ) \
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257 | mrb_raise(mrb, E_ARGUMENT_ERROR, "size_is too short"); \
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258 | return RSTRING_PTR(value); \
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259 | } \
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260 | \
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261 | type *CheckAndGet ## Type ## PointerNullable( mrb_state *mrb, mrb_value value, int32_t len ) \
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262 | { \
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263 | if( mrb_nil_p(value) ) \
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264 | return NULL; \
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265 | return CheckAndGet ## Type ## Pointer( mrb, value, len ); \
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266 | }
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267 |
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268 | #define CHECK_AND_GET_CHAR_POINTER_MOD( Type, type ) \
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269 | type *CheckAndGet ## Type ## PointerMod( mrb_state *mrb, mrb_value value, int32_t len ) \
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270 | { \
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271 | char *ptr; \
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272 | if( mrb_type(value) != MRB_TT_STRING ) \
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273 | mrb_raise(mrb, E_TYPE_ERROR, "not String Type"); \
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274 | str_modify(mrb,RSTRING(value)); \
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275 | if( len == -1 || RSTRING_LEN(value) < len ) \
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276 | mrb_raise(mrb, E_ARGUMENT_ERROR, "size_is too short"); \
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277 | ptr = RSTRING_PTR(value); \
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278 | ptr[len] = '\0'; \
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279 | return (type *)ptr; \
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280 | } \
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281 | \
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282 | type *CheckAndGet ## Type ## PointerModNullable( mrb_state *mrb, mrb_value value, int32_t len ) \
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283 | { \
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284 | if( mrb_nil_p(value) ) \
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285 | return NULL; \
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286 | return CheckAndGet ## Type ## Pointer( mrb, value, len ); \
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287 | }
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288 |
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289 | #define CHECK_AND_GET_POINTER_PROTO( Type, type ) \
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290 | type *CheckAndGet ## Type ## Pointer( mrb_state *mrb, mrb_value value, int32_t len ); \
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291 | type *CheckAndGet ## Type ## PointerNullable( mrb_state *mrb, mrb_value value, int32_t len )
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292 | #define CHECK_AND_GET_POINTER_MOD_PROTO( Type, type ) \
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293 | type *CheckAndGet ## Type ## PointerMod( mrb_state *mrb, mrb_value value, int32_t len ); \
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294 | type *CheckAndGet ## Type ## PointerModNullable( mrb_state *mrb, mrb_value value, int32_t len )
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295 |
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296 | CHECK_AND_GET_POINTER_PROTO( Bool, bool_t ); /* Bool pointer */
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297 | CHECK_AND_GET_POINTER_PROTO( Double64, double64_t );/* Double64 pointer */
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298 | CHECK_AND_GET_POINTER_PROTO( Float32, float32_t ); /* Float32 pointer */
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299 |
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300 | CHECK_AND_GET_POINTER_PROTO( Int8, int8_t ); /* Int8 pointer */
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301 | CHECK_AND_GET_POINTER_PROTO( Int16, int16_t ); /* Int16 pointer */
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302 | CHECK_AND_GET_POINTER_PROTO( Int32, int32_t ); /* Int32 pointer */
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303 | CHECK_AND_GET_POINTER_PROTO( Int64, int64_t ); /* Int64 pointer */
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304 | CHECK_AND_GET_POINTER_PROTO( Int, int ); /* Int pointer */
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305 | CHECK_AND_GET_POINTER_PROTO( Short, short ); /* Short pointer */
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306 | CHECK_AND_GET_POINTER_PROTO( Long, long ); /* Long pointer */
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307 |
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308 | CHECK_AND_GET_POINTER_PROTO( UInt8, uint8_t ); /* UInt8 pointer */
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309 | CHECK_AND_GET_POINTER_PROTO( UInt16, uint16_t ); /* UInt16 pointer */
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310 | CHECK_AND_GET_POINTER_PROTO( UInt32, uint32_t ); /* UInt32 pointer */
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311 | CHECK_AND_GET_POINTER_PROTO( UInt64, uint64_t ); /* UInt64 pointer */
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312 | CHECK_AND_GET_POINTER_PROTO( UInt, unsigned int );/* UInt pointer */
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313 | CHECK_AND_GET_POINTER_PROTO( UShort, unsigned short ); /* UShort pointer */
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314 | CHECK_AND_GET_POINTER_PROTO( ULong, unsigned long ); /* ULong pointer */
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315 |
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316 | #ifndef TECS_Use_MrbString_for_CharPointer
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317 | CHECK_AND_GET_POINTER_PROTO( Char, char_t ); /* Char pointer */
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318 | CHECK_AND_GET_POINTER_PROTO( SChar, char_t ); /* SChar pointer */
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319 | //CHECK_AND_GET_POINTER_PROTO( SChar, schar_t ); /* SChar pointer */
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320 | CHECK_AND_GET_POINTER_PROTO( UChar, uint8_t ); /* UChar pointer */
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321 | //CHECK_AND_GET_POINTER_PROTO( UChar, uchar_t ); /* UChar pointer */
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322 | #define CheckAndGetCharPointerMod CheckAndGetCharPointer
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323 | #define CheckAndGetSCharPointerMod CheckAndGetSCharPointer
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324 | #define CheckAndGetUCharPointerMod CheckAndGetUCharPointer
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325 | #define CheckAndGetCharPointerModNullable CheckAndGetCharPointerNullable
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326 | #define CheckAndGetSCharPointerModNullable CheckAndGetSCharPointerNullable
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327 | #define CheckAndGetUCharPointerModNullable CheckAndGetUCharPointerNullable
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328 | #else
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329 | CHECK_AND_GET_POINTER_PROTO( Char, char_t ); /* Char pointer */
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330 | CHECK_AND_GET_POINTER_PROTO( SChar, char_t ); /* SChar pointer */
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331 | CHECK_AND_GET_POINTER_PROTO( UChar, uint8_t ); /* UChar pointer */
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332 | CHECK_AND_GET_POINTER_MOD_PROTO( Char, char_t ); /* Char pointer */
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333 | CHECK_AND_GET_POINTER_MOD_PROTO( SChar, char_t ); /* SChar pointer */
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334 | CHECK_AND_GET_POINTER_MOD_PROTO( UChar, uint8_t ); /* UChar pointer */
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335 | #endif /* TECS_Use_MrbString_for_CharPointer */
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336 |
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337 | #define GET_SET_BOOL( Type, TYPE ) \
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338 | static mrb_value \
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339 | Type ## Pointer_aget(mrb_state *mrb, mrb_value self) \
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340 | { \
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341 | struct Type ## PointerBody *pointerBody = DATA_PTR( self ); \
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342 | mrb_int subscript; \
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343 | TYPE val; \
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344 | \
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345 | mrb_get_args(mrb, "i", &subscript ); \
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346 | if( subscript < 0 || subscript >= pointerBody->length ) \
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347 | mrb_raise(mrb, E_INDEX_ERROR, "index is out of array (get)"); \
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348 | val = pointerBody->buf[ subscript ]; \
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349 | VALCHECK_MRB_ ## Type( mrb, val ); \
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350 | return val ? mrb_true_value() : mrb_false_value(); \
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351 | } \
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352 | \
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353 | static mrb_value \
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354 | Type ## Pointer_aset(mrb_state *mrb, mrb_value self) \
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355 | { \
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356 | struct Type ## PointerBody *pointerBody = DATA_PTR( self ); \
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357 | mrb_int subscript; \
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358 | mrb_value val; \
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359 | \
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360 | mrb_get_args(mrb, "io", &subscript, &val ); \
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361 | \
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362 | if( subscript < 0 || subscript >= pointerBody->length ) \
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363 | mrb_raise(mrb, E_INDEX_ERROR, "index is out of array (set)"); \
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364 | pointerBody->buf[ subscript ] = mrb_test( val ); \
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365 | \
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366 | return self; \
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367 | } \
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368 | \
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369 | static mrb_value \
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370 | Type ## Pointer_get_val(mrb_state *mrb, mrb_value self) \
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371 | { \
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372 | struct Type ## PointerBody *pointerBody = DATA_PTR( self ); \
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373 | TYPE val; \
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374 | \
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375 | val = *pointerBody->buf; \
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376 | VALCHECK_MRB_ ## Type( mrb, val ); \
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377 | return val ? mrb_true_value() : mrb_false_value(); \
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378 | } \
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379 | \
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380 | static mrb_value \
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381 | Type ## Pointer_set_val(mrb_state *mrb, mrb_value self) \
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382 | { \
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383 | struct Type ## PointerBody *pointerBody = DATA_PTR( self ); \
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384 | mrb_value val; \
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385 | \
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386 | mrb_get_args(mrb, "o", &val ); \
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387 | \
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388 | *pointerBody->buf = mrb_test( val ); \
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389 | return self; \
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390 | }
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391 |
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392 | #define GET_SET_CHAR( Type, TYPE ) GET_SET_INT( Type, TYPE )
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393 | #define GET_SET_INT( Type, TYPE ) \
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394 | static mrb_value \
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395 | Type ## Pointer_aget(mrb_state *mrb, mrb_value self) \
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396 | { \
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397 | struct Type ## PointerBody *pointerBody = DATA_PTR( self ); \
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398 | mrb_int subscript; \
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399 | TYPE val; \
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400 | \
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401 | mrb_get_args(mrb, "i", &subscript ); \
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402 | if( subscript < 0 || subscript >= pointerBody->length ) \
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403 | mrb_raise(mrb, E_INDEX_ERROR, "index is out of array (get)"); \
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404 | val = pointerBody->buf[ subscript ]; \
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405 | VALCHECK_MRB_ ## Type( mrb, val ); \
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406 | return mrb_fixnum_value( val ); \
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407 | } \
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408 | \
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409 | static mrb_value \
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410 | Type ## Pointer_aset(mrb_state *mrb, mrb_value self) \
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411 | { \
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412 | struct Type ## PointerBody *pointerBody = DATA_PTR( self ); \
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413 | mrb_int subscript; \
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414 | mrb_int val; \
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415 | \
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416 | mrb_get_args(mrb, "ii", &subscript, &val ); \
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417 | \
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418 | if( subscript < 0 || subscript >= pointerBody->length ) \
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419 | mrb_raise(mrb, E_INDEX_ERROR, "index is out of array (set)"); \
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420 | VALCHECK_ ## Type ( mrb, val ); \
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421 | pointerBody->buf[ subscript ] = val; \
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422 | \
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423 | return self; \
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424 | } \
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425 | \
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426 | static mrb_value \
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427 | Type ## Pointer_get_val(mrb_state *mrb, mrb_value self) \
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428 | { \
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429 | struct Type ## PointerBody *pointerBody = DATA_PTR( self ); \
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430 | TYPE val; \
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431 | \
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432 | val = *pointerBody->buf; \
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433 | VALCHECK_MRB_ ## Type( mrb, val ); \
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434 | return mrb_fixnum_value( val ); \
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435 | } \
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436 | \
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437 | static mrb_value \
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438 | Type ## Pointer_set_val(mrb_state *mrb, mrb_value self) \
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439 | { \
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440 | struct Type ## PointerBody *pointerBody = DATA_PTR( self ); \
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441 | mrb_int val; \
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442 | \
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443 | mrb_get_args(mrb, "i", &val ); \
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444 | \
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445 | VALCHECK_ ## Type ( mrb, val ); \
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446 | *pointerBody->buf = val; \
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447 | \
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448 | return self; \
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449 | }
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450 |
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451 | #define GET_SET_FLOAT( Type, TYPE ) \
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452 | static mrb_value \
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453 | Type ## Pointer_aget(mrb_state *mrb, mrb_value self) \
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454 | { \
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455 | struct Type ## PointerBody *pointerBody = DATA_PTR( self ); \
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456 | mrb_int subscript; \
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457 | \
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458 | mrb_get_args(mrb, "i", &subscript ); \
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459 | if( subscript < 0 || subscript >= pointerBody->length ) \
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460 | mrb_raise(mrb, E_INDEX_ERROR, "index is out of array (get)"); \
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461 | return mrb_float_value( mrb, pointerBody->buf[ subscript ] ); \
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462 | } \
|
---|
463 | \
|
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464 | static mrb_value \
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465 | Type ## Pointer_aset(mrb_state *mrb, mrb_value self) \
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466 | { \
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467 | struct Type ## PointerBody *pointerBody = DATA_PTR( self ); \
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468 | mrb_int subscript; \
|
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469 | mrb_float val; \
|
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470 | \
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471 | mrb_get_args(mrb, "if", &subscript, &val ); \
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472 | \
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473 | if( subscript < 0 || subscript >= pointerBody->length ) \
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474 | mrb_raise(mrb, E_INDEX_ERROR, "index is out of array (set)"); \
|
---|
475 | pointerBody->buf[ subscript ] = val; \
|
---|
476 | \
|
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477 | return self; \
|
---|
478 | } \
|
---|
479 | \
|
---|
480 | static mrb_value \
|
---|
481 | Type ## Pointer_get_val(mrb_state *mrb, mrb_value self) \
|
---|
482 | { \
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483 | struct Type ## PointerBody *pointerBody = DATA_PTR( self ); \
|
---|
484 | \
|
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485 | return mrb_float_value( mrb, *pointerBody->buf ); \
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486 | } \
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---|
487 | \
|
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488 | static mrb_value \
|
---|
489 | Type ## Pointer_set_val(mrb_state *mrb, mrb_value self) \
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---|
490 | { \
|
---|
491 | struct Type ## PointerBody *pointerBody = DATA_PTR( self ); \
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492 | mrb_float val; \
|
---|
493 | \
|
---|
494 | mrb_get_args(mrb, "f", &val ); \
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495 | \
|
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496 | *pointerBody->buf = val; \
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---|
497 | \
|
---|
498 | return self; \
|
---|
499 | }
|
---|
500 |
|
---|
501 | //// define Pointer classes ////
|
---|
502 | #define POINTER_CLASS( Type, TYPE ) \
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---|
503 | \
|
---|
504 | static void \
|
---|
505 | Type ## PointerBody_free( mrb_state *mrb, void *p ) \
|
---|
506 | { \
|
---|
507 | (void)mrb_free( mrb, p ); \
|
---|
508 | } \
|
---|
509 | \
|
---|
510 | struct mrb_data_type Type ## PointerBody_mrb_data_type = \
|
---|
511 | { \
|
---|
512 | "TECS::" #Type "Pointer", \
|
---|
513 | Type ## PointerBody_free \
|
---|
514 | }; \
|
---|
515 | \
|
---|
516 | static mrb_value \
|
---|
517 | Type ## Pointer_initialize( mrb_state *mrb, mrb_value self) \
|
---|
518 | { \
|
---|
519 | mrb_int length; \
|
---|
520 | struct Type ## PointerBody *pointerBody; \
|
---|
521 | \
|
---|
522 | mrb_get_args(mrb, "i", &length ); \
|
---|
523 | if( length < 0 ) \
|
---|
524 | mrb_raise(mrb, E_INDEX_ERROR, "negative length"); \
|
---|
525 | DATA_TYPE( self ) = &Type ## PointerBody_mrb_data_type; \
|
---|
526 | pointerBody = (struct Type ## PointerBody *)mrb_malloc(mrb, sizeof(struct Type ## PointerBody) + length * sizeof( TYPE ) ); \
|
---|
527 | pointerBody->length = length; \
|
---|
528 | DATA_PTR( self ) = (void *)pointerBody; \
|
---|
529 | \
|
---|
530 | return self; \
|
---|
531 | } \
|
---|
532 | \
|
---|
533 | static mrb_value \
|
---|
534 | Type ## Pointer_size(mrb_state *mrb, mrb_value self) \
|
---|
535 | { \
|
---|
536 | struct Type ## PointerBody *pointerBody = DATA_PTR( self ); \
|
---|
537 | \
|
---|
538 | return mrb_fixnum_value( pointerBody->length ); \
|
---|
539 | } \
|
---|
540 | \
|
---|
541 | struct RClass * \
|
---|
542 | tecs_init_## Type ## Pointer(mrb_state *mrb, struct RClass *TECS) \
|
---|
543 | { \
|
---|
544 | struct RClass *a; \
|
---|
545 | \
|
---|
546 | a = mrb_define_class_under(mrb, TECS, #Type "Pointer", mrb->object_class); \
|
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547 | MRB_SET_INSTANCE_TT(a, MRB_TT_DATA); \
|
---|
548 | \
|
---|
549 | mrb_define_method(mrb, a, "initialize", Type ## Pointer_initialize, MRB_ARGS_REQ(1)); \
|
---|
550 | mrb_define_method(mrb, a, "[]", Type ## Pointer_aget, MRB_ARGS_REQ(1)); \
|
---|
551 | mrb_define_method(mrb, a, "value", Type ## Pointer_get_val, MRB_ARGS_NONE()); \
|
---|
552 | mrb_define_method(mrb, a, "[]=", Type ## Pointer_aset, MRB_ARGS_REQ(2)); \
|
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553 | mrb_define_method(mrb, a, "value=", Type ## Pointer_set_val, MRB_ARGS_REQ(1)); \
|
---|
554 | mrb_define_method(mrb, a, "size", Type ## Pointer_size, MRB_ARGS_NONE()); \
|
---|
555 | mrb_define_method(mrb, a, "length", Type ## Pointer_size, MRB_ARGS_NONE()); \
|
---|
556 | return a; \
|
---|
557 | }
|
---|
558 |
|
---|
559 | static inline mrb_value
|
---|
560 | CharPointer_to_s( mrb_state *mrb, mrb_value self )
|
---|
561 | {
|
---|
562 | struct CharPointerBody *pointerBody = DATA_PTR( self );
|
---|
563 | return mrb_str_new( mrb, pointerBody->buf, strnlen( pointerBody->buf, pointerBody->length ) );
|
---|
564 | }
|
---|
565 |
|
---|
566 | static inline mrb_value
|
---|
567 | CharPointer_from_s( mrb_state *mrb, mrb_value self )
|
---|
568 | {
|
---|
569 | mrb_value str;
|
---|
570 | struct CharPointerBody *pointerBody = DATA_PTR( self );
|
---|
571 |
|
---|
572 | mrb_get_args(mrb, "o", &str );
|
---|
573 | if( mrb_type( str ) != MRB_TT_STRING ){
|
---|
574 | mrb_raise(mrb, E_ARGUMENT_ERROR, "Not String");
|
---|
575 | }
|
---|
576 |
|
---|
577 | strncpy( pointerBody->buf, RSTRING_PTR(str), pointerBody->length );
|
---|
578 | return self;
|
---|
579 | }
|
---|
580 |
|
---|
581 | /* Initialize TECSPointer classes */
|
---|
582 | void init_TECSPointer( mrb_state *mrb, struct RClass *TECS );
|
---|
583 |
|
---|
584 | #endif /* TECSPointer_h__ */
|
---|
585 |
|
---|