1 | 'function.sbp |
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2 | |
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3 | Const _System_PI = 3.14159265358979323846264 |
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4 | Const _System_SQRT2 = 1.41421356237309504880168872421 |
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5 | |
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6 | '------------- サポート関数の定義 ------------- |
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7 | |
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8 | Function ipow(x As Double, n As Long) As Double |
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9 | ipow = ActiveBasic.Math.pow(x, n) |
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10 | End Function |
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11 | |
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12 | Function pow(x As Double, y As Double) As Double |
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13 | pow = ActiveBasic.Math.pow(x, y) |
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14 | End Function |
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15 | |
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16 | Const RAND_MAX = &H7FFFFFFF |
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17 | Dim _System_RndNext = 1 As DWord |
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18 | |
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19 | Function rand() As Long |
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20 | _System_RndNext = _System_RndNext * 1103515245 + 12345 |
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21 | rand = (_System_RndNext >> 1) As Long |
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22 | End Function |
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23 | |
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24 | Sub srand(dwSeek As DWord) |
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25 | _System_RndNext = dwSeek |
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26 | End Sub |
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27 | |
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28 | '------------- ここからBasic標準関数の定義 ------------- |
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29 | |
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30 | '------------------ |
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31 | ' データ型変換関数 |
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32 | '------------------ |
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33 | |
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34 | Function CDbl(number As Double) As Double |
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35 | CDbl=number |
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36 | End Function |
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37 | |
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38 | Function _CUDbl(number As QWord) As Double |
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39 | _CUDbl=number As Double |
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40 | End Function |
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41 | |
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42 | Function CDWord(num As Double) As DWord |
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43 | CDWord=num As DWord |
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44 | End Function |
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45 | |
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46 | Function CInt(number As Double) As Long |
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47 | CInt=number As Long |
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48 | End Function |
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49 | |
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50 | Function CSng(number As Double) As Single |
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51 | CSng=number As Single |
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52 | End Function |
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53 | |
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54 | #ifdef _WIN64 |
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55 | Function Fix(number As Double) As Long |
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56 | Fix=number As Long |
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57 | End Function |
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58 | #else |
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59 | 'Fix関数はコンパイラに組み込まれている |
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60 | 'Function Fix(number As Double) As Long |
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61 | #endif |
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62 | |
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63 | Function Int(number As Double) As Long |
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64 | Int = Fix(number) |
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65 | If number < 0 Then |
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66 | If number < Fix(number) Then Int-- |
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67 | End If |
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68 | End Function |
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69 | |
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70 | |
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71 | '------------------------------------- |
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72 | ' ポインタ関数（コンパイラに組み込み） |
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73 | '------------------------------------- |
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74 | |
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75 | 'Function GetDouble(p As DWord) As Double |
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76 | 'Function GetSingle(p As DWord) As Single |
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77 | 'Function GetDWord(p As DWord) As DWord |
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78 | 'Function GetWord(p As DWord) As Word |
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79 | 'Function GetByte(p As DWord) As Byte |
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80 | 'Sub SetDouble(p As DWord, dblData As Double) |
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81 | 'Sub SetSingle(p As DWord, fltData As Single) |
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82 | 'Sub SetDWord(p As DWord, dwData As DWord) |
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83 | 'Sub SetWord(p As DWord, wData As Word) |
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84 | 'Sub SetByte(p As DWord, byteData As Byte) |
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85 | |
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86 | |
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87 | '---------- |
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88 | ' 算術関数 |
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89 | '---------- |
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90 | |
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91 | /* |
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92 | Function Abs(n As Double) As Double |
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93 | Abs = ActiveBasic.Math.Abs(n) |
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94 | End Function |
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95 | |
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96 | Function Abs(n As Single) As Single |
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97 | Abs = ActiveBasic.Math.Abs(n) |
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98 | End Function |
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99 | |
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100 | Function Abs(n As Int64) As Int64 |
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101 | Abs = ActiveBasic.Math.Abs(n) |
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102 | End Function |
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103 | |
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104 | Function Abs(n As Long) As Long |
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105 | Abs = ActiveBasic.Math.Abs(n) |
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106 | End Function |
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107 | |
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108 | Function Abs(n As Integer) As Integer |
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109 | Abs = ActiveBasic.Math.Abs(n) |
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110 | End Function |
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111 | |
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112 | Function Abs(n As SByte) As SByte |
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113 | Abs = ActiveBasic.Math.Abs(n) |
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114 | End Function |
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115 | |
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116 | Function Exp(x As Double) As Double |
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117 | Exp = ActiveBasic.Math.Exp(x) |
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118 | End Function |
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119 | |
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120 | Function Log(x As Double) As Double |
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121 | Log = ActiveBasic.Math.Log(x) |
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122 | End Function |
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123 | */ |
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124 | Function Sgn(n As Double) As Long |
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125 | ' Sgn = ActiveBasic.Math.Sign(n) |
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126 | End Function |
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127 | |
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128 | Function Sqr(x As Double) As Double |
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129 | Sqr = ActiveBasic.Math.Sqrt(x) |
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130 | End Function |
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131 | |
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132 | Function Atn(x As Double) As Double |
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133 | Atn = ActiveBasic.Math.Atan(x) |
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134 | End Function |
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135 | |
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136 | Function Atn2(y As Double, x As Double) As Double |
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137 | Atn2 = ActiveBasic.Math.Atan2(y, x) |
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138 | End Function |
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139 | /* |
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140 | Function Sin(x As Double) As Double |
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141 | Sin = ActiveBasic.Math.Sin(x) |
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142 | End Function |
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143 | |
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144 | Function Cos(x As Double) As Double |
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145 | Cos = ActiveBasic.Math.Cos(x) |
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146 | End Function |
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147 | |
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148 | Function Tan(x As Double) As Double |
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149 | Tan = ActiveBasic.Math.Tan(x) |
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150 | End Function |
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151 | */ |
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152 | Const RAND_UNIT = (1.0 / (LONG_MAX + 1.0)) |
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153 | Function Rnd() As Double |
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154 | Rnd = RAND_UNIT * rand() |
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155 | End Function |
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156 | |
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157 | Const HIDWORD(qw) = (((qw As QWord) >> 32) And &HFFFFFFFF) As DWord |
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158 | Const LODWORD(qw) = ((qw As QWord) And &HFFFFFFFF) As DWord |
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159 | |
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160 | Const MAKEDWORD(l, h) = (((l As DWord) And &HFFFF) Or (((h As DWord) And &HFFFF) << 16)) As DWord |
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161 | Const MAKEQWORD(l, h) = (((l As QWord) And &HFFFFFFFF) Or (((h As QWord) And &HFFFFFFFF) << 32)) As QWord |
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162 | |
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163 | '------------ |
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164 | ' 文字列関数 |
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165 | '------------ |
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166 | |
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167 | Function Asc(buf As String) As Char |
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168 | Asc = buf[0] |
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169 | End Function |
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170 | |
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171 | Function Chr$(code As Char) As String |
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172 | Chr$ = New String(code, 1) |
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173 | End Function |
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174 | |
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175 | #ifdef UNICODE |
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176 | Function AscW(s As String) As UCSCHAR |
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177 | If String.IsNullOrEmpty(s) Then |
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178 | AscW = 0 |
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179 | 'ArgumentNullExceptionに変えるかも |
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180 | Else |
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181 | If _System_IsHighSurrogate(s[0]) Then |
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182 | '有効なサロゲートペアになっていない場合には、 |
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183 | '例外を投げるようにしたほうがよいかもしれない。 |
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184 | If s.Length > 1 Then |
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185 | If _System_IsLowSurrogate(s[0]) Then |
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186 | AscW = ((s[0] And &h3FF) As DWord << 10) Or (s[1] And &h3FF) |
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187 | AscW += &h10000 |
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188 | Exit Function |
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189 | End If |
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190 | End If |
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191 | Else |
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192 | AscW = s[0] |
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193 | End If |
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194 | End If |
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195 | End Function |
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196 | |
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197 | Function ChrW(c As UCSCHAR) As String |
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198 | If c <= &hFFFF Then |
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199 | Return New String(c As Char, 1) |
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200 | ElseIf c <= &h10FFFF Then |
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201 | c -= &h10000 |
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202 | Dim t[1] As WCHAR |
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203 | t[0] = (&hD800 Or (c >> 10)) As WCHAR |
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204 | t[1] = (&hDC00 Or (c And &h3FF)) As WCHAR |
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205 | Return New String(t, 2) |
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206 | Else |
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207 | Throw New System.ArgumentOutOfRangeException("ChrW: c is invalid unicode code point.", "c") |
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208 | End If |
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209 | End Function |
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210 | #endif |
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211 | |
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212 | Function Date$() As String |
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213 | Dim date = System.DateTime.Now |
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214 | Dim buf = New System.Text.StringBuilder(10) |
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215 | |
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216 | 'year |
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217 | buf.Append(date.Year) |
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218 | |
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219 | 'month |
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220 | If date.Month < 10 Then |
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221 | buf.Append("/0") |
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222 | Else |
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223 | buf.Append("/") |
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224 | End If |
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225 | buf.Append(date.Month) |
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226 | |
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227 | 'day |
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228 | If date.Day < 10 Then |
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229 | buf.Append("/0") |
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230 | Else |
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231 | buf.Append("/") |
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232 | End If |
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233 | buf.Append(date.Day) |
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234 | |
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235 | Date$ = buf.ToString |
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236 | End Function |
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237 | |
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238 | Function Hex$(x As DWord) As String |
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239 | Imports ActiveBasic.Strings.Detail |
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240 | Hex$ = FormatIntegerX(x, 1, 0, None) |
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241 | End Function |
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242 | |
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243 | Function Hex$(x As QWord) As String |
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244 | Imports ActiveBasic.Strings.Detail |
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245 | Hex$ = FormatIntegerLX(x, 1, 0, None) |
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246 | End Function |
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247 | |
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248 | Function InStr(StartPos As Long, buf1 As String, buf2 As String) As Long |
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249 | Dim i As Long, i2 As Long, i3 As Long |
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250 | |
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251 | Dim len1 = 0 As Long |
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252 | Dim len2 = 0 As Long |
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253 | If Not ActiveBasic.IsNothing(buf1) Then len1 = buf1.Length |
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254 | If Not ActiveBasic.IsNothing(buf2) Then len2 = buf2.Length |
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255 | |
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256 | If len2 = 0 Then |
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257 | InStr = StartPos |
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258 | Exit Function |
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259 | End If |
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260 | |
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261 | StartPos-- |
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262 | If StartPos < 0 Then |
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263 | 'error |
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264 | InStr = 0 |
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265 | Exit Function |
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266 | End If |
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267 | |
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268 | i=StartPos:InStr=0 |
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269 | While i<=len1-len2 |
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270 | i2=i:i3=0 |
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271 | Do |
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272 | If i3=len2 Then |
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273 | InStr=i+1 |
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274 | Exit Do |
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275 | End If |
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276 | If buf1[i2]<>buf2[i3] Then Exit Do |
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277 | |
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278 | i2++ |
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279 | i3++ |
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280 | Loop |
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281 | If InStr Then Exit While |
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282 | i++ |
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283 | Wend |
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284 | End Function |
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285 | |
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286 | Function Left$(s As String, length As Long) As String |
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287 | If Not ActiveBasic.IsNothing(s) Then |
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288 | Left$ = s.Substring(0, System.Math.Min(s.Length, length)) |
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289 | Else |
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290 | Left$ = "" |
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291 | End If |
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292 | End Function |
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293 | |
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294 | Function Mid$(s As String, startPos As Long) As String |
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295 | If Not ActiveBasic.IsNothing(s) Then |
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296 | startPos-- |
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297 | Mid$ = s.Substring(startPos) |
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298 | Else |
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299 | Mid$ = "" |
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300 | End If |
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301 | End Function |
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302 | |
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303 | Function Mid$(s As String, startPos As Long, readLength = 0 As Long) As String |
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304 | If Not ActiveBasic.IsNothing(s) Then |
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305 | startPos-- |
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306 | Dim length = s.Length |
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307 | Mid$ = s.Substring(System.Math.Min(startPos, length), System.Math.Min(readLength, length - startPos)) |
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308 | Else |
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309 | Mid$ = "" |
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310 | End If |
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311 | End Function |
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312 | |
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313 | Function Oct$(n As QWord) As String |
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314 | Imports ActiveBasic.Strings.Detail |
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315 | Oct$ = FormatIntegerLO(n, 1, 0, None) |
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316 | End Function |
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317 | |
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318 | Function Oct$(n As DWord) As String |
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319 | Imports ActiveBasic.Strings.Detail |
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320 | Oct$ = FormatIntegerO(n, 1, 0, None) |
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321 | End Function |
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322 | |
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323 | Function Right$(s As String, length As Long) As String |
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324 | If Not ActiveBasic.IsNothing(s) Then |
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325 | Right$ = s.Substring(System.Math.Max(0, s.Length - length), s.Length) |
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326 | Else |
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327 | Right$ = "" |
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328 | End If |
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329 | End Function |
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330 | |
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331 | Function Space$(length As Long) As String |
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332 | Return New String(&h20 As Char, length) |
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333 | End Function |
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334 | |
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335 | Sub _ecvt_support(buf As *Char, count As Long, size As Long) |
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336 | Dim i As Long |
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337 | If buf[count] = 9 Then |
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338 | buf[count] = 0 |
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339 | If count = 0 Then |
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340 | For i = size To 1 Step -1 |
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341 | buf[i] = buf[i-1] |
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342 | Next |
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343 | buf[0] = 1 |
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344 | Else |
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345 | _ecvt_support(buf, count-1, size) |
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346 | End If |
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347 | Else |
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348 | buf[count]++ |
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349 | End If |
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350 | End Sub |
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351 | |
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352 | Sub _ecvt(buffer As *Char, value As Double, count As Long, ByRef dec As Long, ByRef sign As Boolean) |
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353 | Dim i As Long, i2 As Long |
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354 | |
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355 | '値が0の場合 |
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356 | If value = 0 Then |
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357 | ActiveBasic.Strings.ChrFill(buffer, count As SIZE_T, &h30 As Char) |
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358 | buffer[count] = 0 |
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359 | dec = 0 |
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360 | sign = 0 |
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361 | Exit Function |
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362 | End If |
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363 | |
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364 | '符号の判断（同時に符号を取り除く） |
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365 | If value < 0 Then |
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366 | sign = True |
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367 | value = -value |
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368 | Else |
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369 | sign = False |
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370 | End If |
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371 | |
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372 | '正規化 |
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373 | dec = 1 |
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374 | While value < 0.999999999999999 'value<1 |
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375 | value *= 10 |
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376 | dec-- |
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377 | Wend |
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378 | While 9.99999999999999 <= value '10<=value |
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379 | value /= 10 |
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380 | dec++ |
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381 | Wend |
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382 | |
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383 | For i = 0 To count - 1 |
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384 | buffer[i] = Int(value) As Char |
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385 | value = (value-CDbl(Int(value))) * 10 |
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386 | Next |
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387 | |
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388 | i-- |
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389 | If value >= 5 Then |
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390 | '切り上げ処理 |
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391 | _ecvt_support(buffer, i, count) |
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392 | End If |
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393 | |
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394 | For i = 0 To count - 1 |
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395 | buffer[i] += &H30 |
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396 | Next |
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397 | buffer[i] = 0 |
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398 | End Sub |
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399 | |
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400 | Function Str$(dbl As Double) As String |
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401 | Imports ActiveBasic.Math |
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402 | Imports ActiveBasic.Strings |
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403 | If IsNaN(dbl) Then |
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404 | Return "NaN" |
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405 | ElseIf IsInf(dbl) Then |
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406 | If dbl > 0 Then |
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407 | Return "Infinity" |
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408 | Else |
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409 | Return "-Infinity" |
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410 | End If |
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411 | End If |
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412 | Dim dec As Long, sign As Boolean |
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413 | Dim buffer[32] As Char, temp[15] As Char |
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414 | Dim i = 0 As Long |
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415 | |
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416 | '浮動小数点を文字列に変換 |
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417 | _ecvt(temp, dbl, 15, dec, sign) |
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418 | |
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419 | '符号の取り付け |
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420 | If sign Then |
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421 | buffer[i] = Asc("-") |
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422 | i++ |
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423 | End If |
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424 | |
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425 | If dec > 15 Or dec < -3 Then |
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426 | '指数表示 |
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427 | buffer[i] = temp[0] |
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428 | i++ |
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429 | buffer[i] = Asc(".") |
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430 | i++ |
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431 | ChrCopy(VarPtr(buffer[i]), VarPtr(temp[1]), 14 As SIZE_T) |
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432 | i += 14 |
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433 | buffer[i] = 0 |
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434 | Return MakeStr(buffer) + SPrintf("e%+03d", New System.Int32(dec - 1)) |
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435 | End If |
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436 | |
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437 | '整数部 |
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438 | Dim i2 = dec |
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439 | Dim i3 = 0 |
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440 | If i2>0 Then |
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441 | While i2>0 |
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442 | buffer[i]=temp[i3] |
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443 | i++ |
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444 | i3++ |
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445 | i2-- |
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446 | Wend |
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447 | buffer[i]=Asc(".") |
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448 | i++ |
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449 | Else |
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450 | buffer[i]=&H30 |
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451 | i++ |
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452 | buffer[i]=Asc(".") |
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453 | i++ |
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454 | |
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455 | i2=dec |
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456 | While i2<0 |
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457 | buffer[i]=&H30 |
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458 | i++ |
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459 | i2++ |
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460 | Wend |
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461 | End If |
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462 | |
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463 | '小数部 |
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464 | While i3<15 |
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465 | buffer[i]=temp[i3] |
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466 | i++ |
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467 | i3++ |
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468 | Wend |
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469 | |
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470 | While buffer[i-1]=&H30 |
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471 | i-- |
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472 | Wend |
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473 | If buffer[i-1]=Asc(".") Then i-- |
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474 | |
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475 | buffer[i]=0 |
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476 | Return MakeStr(buffer) |
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477 | End Function |
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478 | |
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479 | Function Str$(x As Int64) As String |
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480 | Imports ActiveBasic.Strings.Detail |
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481 | Return FormatIntegerEx(TraitsIntegerD[1], x As QWord, 1, 0, None) |
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482 | End Function |
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483 | |
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484 | Function Str$(x As QWord) As String |
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485 | Imports ActiveBasic.Strings.Detail |
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486 | Return FormatIntegerEx(TraitsIntegerU[1], x, 1, 0, None) |
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487 | End Function |
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488 | |
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489 | Function Str$(x As Long) As String |
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490 | Imports ActiveBasic.Strings.Detail |
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491 | Return FormatIntegerEx(TraitsIntegerD[0], x, 1, 0, None) |
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492 | End Function |
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493 | |
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494 | Function Str$(x As DWord) As String |
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495 | Imports ActiveBasic.Strings.Detail |
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496 | Return FormatIntegerEx(TraitsIntegerU[0], x, 1, 0, None) |
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497 | End Function |
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498 | |
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499 | Function Str$(x As Word) As String |
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500 | Return Str$(x As DWord) |
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501 | End Function |
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502 | |
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503 | Function Str$(x As Integer) As String |
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504 | Return Str$(x As Long) |
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505 | End Function |
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506 | |
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507 | Function Str$(x As Byte) As String |
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508 | Return Str$(x As DWord) |
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509 | End Function |
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510 | |
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511 | Function Str$(x As SByte) As String |
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512 | Return Str$(x As Long) |
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513 | End Function |
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514 | |
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515 | Function Str$(x As Single) As String |
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516 | Return Str$(x As Double) |
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517 | End Function |
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518 | |
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519 | Function Str$(b As Boolean) As String |
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520 | If b Then |
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521 | Return "True" |
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522 | Else |
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523 | Return "False" |
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524 | End If |
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525 | End Function |
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526 | |
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527 | Function Str$(s As String) As String |
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528 | Str$ = s |
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529 | End Function |
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530 | |
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531 | Function String$(n As Long, s As Char) As String |
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532 | Return New String(s, n) |
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533 | End Function |
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534 | |
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535 | #ifdef _AB4_COMPATIBILITY_STRING$_ |
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536 | Function String$(n As Long, s As String) As String |
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537 | If n < 0 Then |
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538 | 'Throw ArgumentOutOfRangeException |
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539 | End If |
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540 | Dim buf = New System.Text.StringBuilder(s.Length * n) |
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541 | Dim i As Long |
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542 | For i = 1 To n |
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543 | buf.Append(s) |
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544 | Next |
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545 | End Function |
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546 | #else |
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547 | Function String$(n As Long, s As String) As String |
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548 | Dim c As Char |
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549 | If String.IsNullOrEmpty(s) Then |
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550 | c = 0 |
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551 | Else |
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552 | c = s[0] |
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553 | End If |
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554 | String$ = New String(c, n) |
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555 | End Function |
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556 | #endif |
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557 | |
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558 | Function Time$() As String |
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559 | Dim time = System.DateTime.Now |
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560 | Dim buf = New System.Text.StringBuilder(8) |
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561 | 'hour |
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562 | If time.Hour < 10 Then |
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563 | buf.Append("0") |
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564 | End If |
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565 | buf.Append(time.Hour) |
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566 | |
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567 | 'minute |
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568 | If time.Minute < 10 Then |
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569 | buf.Append(":0") |
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570 | Else |
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571 | buf.Append(":") |
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572 | End If |
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573 | buf.Append(time.Minute) |
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574 | |
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575 | 'second |
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576 | If time.Second < 10 Then |
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577 | buf.Append(":0") |
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578 | Else |
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579 | buf.Append(":") |
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580 | End If |
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581 | buf.Append(time.Second) |
---|
582 | Time$ = buf.ToString |
---|
583 | End Function |
---|
584 | |
---|
585 | Function Val(buf As *Char) As Double |
---|
586 | If buf = 0 Then |
---|
587 | Exit Function |
---|
588 | End If |
---|
589 | |
---|
590 | Dim i As Long, i2 As Long, i3 As Long, i4 As Long |
---|
591 | Dim temporary As String |
---|
592 | Dim TempPtr As *Char |
---|
593 | Dim dbl As Double |
---|
594 | Dim i64data As Int64 |
---|
595 | |
---|
596 | Val=0 |
---|
597 | |
---|
598 | While ActiveBasic.CType.IsSpace(buf[0]) |
---|
599 | buf = VarPtr(buf[1]) |
---|
600 | Wend |
---|
601 | |
---|
602 | If buf[0]=Asc("&") Then |
---|
603 | temporary = New String( buf ) |
---|
604 | temporary = temporary.ToUpper() |
---|
605 | TempPtr = StrPtr(temporary) |
---|
606 | If TempPtr(1) = Asc("O") Then |
---|
607 | '8進数 |
---|
608 | i=2 |
---|
609 | While 1 |
---|
610 | '数字以外の文字の場合は抜け出す |
---|
611 | i3=TempPtr[i]-&H30 |
---|
612 | If Not (0<=i3 And i3<=7) Then Exit While |
---|
613 | |
---|
614 | TempPtr[i]=i3 As Char |
---|
615 | i++ |
---|
616 | Wend |
---|
617 | i-- |
---|
618 | |
---|
619 | i64data=1 |
---|
620 | While i>=2 |
---|
621 | Val += ( i64data * TempPtr[i] ) As Double |
---|
622 | |
---|
623 | i64data *= &O10 |
---|
624 | i-- |
---|
625 | Wend |
---|
626 | ElseIf TempPtr(1)=Asc("H") Then |
---|
627 | '16進数 |
---|
628 | i=2 |
---|
629 | While 1 |
---|
630 | '数字以外の文字の場合は抜け出す |
---|
631 | i3=TempPtr[i]-&H30 |
---|
632 | If Not(0<=i3 and i3<=9) Then |
---|
633 | i3=TempPtr[i]-&H41+10 |
---|
634 | If Not(&HA<=i3 and i3<=&HF) Then Exit While |
---|
635 | End If |
---|
636 | |
---|
637 | TempPtr[i]=i3 As Char |
---|
638 | i++ |
---|
639 | Wend |
---|
640 | i-- |
---|
641 | |
---|
642 | i64data=1 |
---|
643 | While i>=2 |
---|
644 | Val += (i64data*TempPtr[i]) As Double |
---|
645 | |
---|
646 | i64data *= &H10 |
---|
647 | i-- |
---|
648 | Wend |
---|
649 | End If |
---|
650 | Else |
---|
651 | '10進数 |
---|
652 | #ifdef UNICODE |
---|
653 | swscanf(buf,"%lf",VarPtr(Val)) |
---|
654 | #else |
---|
655 | sscanf(buf,"%lf",VarPtr(Val)) |
---|
656 | #endif |
---|
657 | End If |
---|
658 | End Function |
---|
659 | |
---|
660 | |
---|
661 | '-------------- |
---|
662 | ' ファイル関数 |
---|
663 | '-------------- |
---|
664 | |
---|
665 | Function Eof(FileNum As Long) As Long |
---|
666 | FileNum-- |
---|
667 | ActiveBasic.Detail.ThrowIfInvaildFileNum(FileNum) |
---|
668 | Dim dwCurrent = SetFilePointer(_System_hFile(FileNum), 0,NULL, FILE_CURRENT) |
---|
669 | Dim dwEnd = SetFilePointer(_System_hFile(FileNum), 0, NULL, FILE_END) |
---|
670 | SetFilePointer(_System_hFile(FileNum), dwCurrent, NULL, FILE_BEGIN) |
---|
671 | |
---|
672 | If dwCurrent>=dwEnd Then |
---|
673 | Eof=-1 |
---|
674 | Else |
---|
675 | Eof=0 |
---|
676 | End If |
---|
677 | End Function |
---|
678 | |
---|
679 | Function Lof(FileNum As Long) As Long |
---|
680 | FileNum-- |
---|
681 | ActiveBasic.Detail.ThrowIfInvaildFileNum(FileNum) |
---|
682 | Lof = GetFileSize(_System_hFile(FileNum), 0) |
---|
683 | End Function |
---|
684 | |
---|
685 | Function Loc(FileNum As Long) As Long |
---|
686 | FileNum-- |
---|
687 | ActiveBasic.Detail.ThrowIfInvaildFileNum(FileNum) |
---|
688 | Dim NowPos = SetFilePointer(_System_hFile(FileNum), 0, 0, FILE_CURRENT) |
---|
689 | Dim BeginPos = SetFilePointer(_System_hFile(FileNum), 0, 0, FILE_BEGIN) |
---|
690 | SetFilePointer(_System_hFile(FileNum), NowPos - BeginPos, 0, FILE_BEGIN) |
---|
691 | |
---|
692 | Loc = NowPos - BeginPos |
---|
693 | End Function |
---|
694 | |
---|
695 | Namespace ActiveBasic |
---|
696 | Namespace Detail |
---|
697 | |
---|
698 | Sub ThrowIfInvaildFileNum(n As Long) |
---|
699 | If n < 0 Or n > 255 Then |
---|
700 | Throw New System.ArgumentOutOfRangeException("FileNum", "Invalid file number") |
---|
701 | ElseIf _System_hFile(n) = 0 Then |
---|
702 | Throw New System.InvalidOperationException("File number " & Str$(n + 1) & "is not opend.") |
---|
703 | End If |
---|
704 | End Sub |
---|
705 | |
---|
706 | End Namespace |
---|
707 | End Namespace |
---|
708 | |
---|
709 | '------------------ |
---|
710 | ' メモリ関連の関数 |
---|
711 | '------------------ |
---|
712 | |
---|
713 | Function malloc(stSize As SIZE_T) As VoidPtr |
---|
714 | Return _System_pGC->__malloc(stSize,_System_GC_FLAG_NEEDFREE or _System_GC_FLAG_ATOMIC) |
---|
715 | End Function |
---|
716 | |
---|
717 | Function calloc(stSize As SIZE_T) As VoidPtr |
---|
718 | Return _System_pGC->__malloc(stSize,_System_GC_FLAG_NEEDFREE or _System_GC_FLAG_ATOMIC or _System_GC_FLAG_INITZERO) |
---|
719 | End Function |
---|
720 | |
---|
721 | Function realloc(lpMem As VoidPtr, stSize As SIZE_T) As VoidPtr |
---|
722 | If lpMem = 0 Then |
---|
723 | Return malloc(stSize) |
---|
724 | Else |
---|
725 | Return _System_pGC->__realloc(lpMem,stSize) |
---|
726 | End If |
---|
727 | End Function |
---|
728 | |
---|
729 | Sub free(lpMem As VoidPtr) |
---|
730 | _System_pGC->__free(lpMem) |
---|
731 | End Sub |
---|
732 | |
---|
733 | Function _System_malloc(stSize As SIZE_T) As VoidPtr |
---|
734 | Return HeapAlloc(_System_hProcessHeap, 0, stSize) |
---|
735 | End Function |
---|
736 | |
---|
737 | Function _System_calloc(stSize As SIZE_T) As VoidPtr |
---|
738 | Return HeapAlloc(_System_hProcessHeap, HEAP_ZERO_MEMORY, stSize) |
---|
739 | End Function |
---|
740 | |
---|
741 | Function _System_realloc(lpMem As VoidPtr, stSize As SIZE_T) As VoidPtr |
---|
742 | If lpMem = 0 Then |
---|
743 | Return HeapAlloc(_System_hProcessHeap, 0, stSize) |
---|
744 | Else |
---|
745 | Return HeapReAlloc(_System_hProcessHeap, 0, lpMem, stSize) |
---|
746 | End If |
---|
747 | End Function |
---|
748 | |
---|
749 | Sub _System_free(lpMem As VoidPtr) |
---|
750 | HeapFree(_System_hProcessHeap, 0, lpMem) |
---|
751 | End Sub |
---|
752 | |
---|
753 | |
---|
754 | '-------- |
---|
755 | ' その他 |
---|
756 | '-------- |
---|
757 | |
---|
758 | Sub _splitpath(path As PCSTR, drive As PSTR, dir As PSTR, fname As PSTR, ext As PSTR) |
---|
759 | Dim i As Long, i2 As Long, i3 As Long, length As Long |
---|
760 | Dim buffer[MAX_PATH] As SByte |
---|
761 | |
---|
762 | '":\"をチェック |
---|
763 | If not(path[1]=&H3A and path[2]=&H5C) Then Exit Sub |
---|
764 | |
---|
765 | 'ドライブ名をコピー |
---|
766 | If drive Then |
---|
767 | drive[0]=path[0] |
---|
768 | drive[1]=path[1] |
---|
769 | drive[2]=0 |
---|
770 | End If |
---|
771 | |
---|
772 | 'ディレクトリ名をコピー |
---|
773 | i=2 |
---|
774 | i2=0 |
---|
775 | Do |
---|
776 | If IsDBCSLeadByte(path[i]) <> FALSE and path[i + 1] <> 0 Then |
---|
777 | If dir Then |
---|
778 | dir[i2]=path[i] |
---|
779 | dir[i2+1]=path[i+1] |
---|
780 | End If |
---|
781 | |
---|
782 | i += 2 |
---|
783 | i2 += 2 |
---|
784 | Continue |
---|
785 | End If |
---|
786 | |
---|
787 | If path[i]=0 Then Exit Do |
---|
788 | |
---|
789 | If path[i]=&H5C Then '"\"記号であるかどうか |
---|
790 | i3=i2+1 |
---|
791 | End If |
---|
792 | |
---|
793 | If dir Then dir[i2]=path[i] |
---|
794 | |
---|
795 | i++ |
---|
796 | i2++ |
---|
797 | Loop |
---|
798 | If dir Then dir[i3]=0 |
---|
799 | i3 += i-i2 |
---|
800 | |
---|
801 | 'ファイル名をコピー |
---|
802 | i=i3 |
---|
803 | i2=0 |
---|
804 | i3=-1 |
---|
805 | Do |
---|
806 | '#ifdef UNICODE |
---|
807 | ' If _System_IsSurrogatePair(path[i], path[i + 1]) Then |
---|
808 | '#else |
---|
809 | If IsDBCSLeadByte(path[i]) <> FALSE and path[i + 1] <> 0 Then |
---|
810 | '#endif |
---|
811 | If fname Then |
---|
812 | fname[i2]=path[i] |
---|
813 | fname[i2+1]=path[i+1] |
---|
814 | End If |
---|
815 | |
---|
816 | i += 2 |
---|
817 | i2 += 2 |
---|
818 | Continue |
---|
819 | End If |
---|
820 | |
---|
821 | If path[i]=0 Then Exit Do |
---|
822 | |
---|
823 | If path[i]=&H2E Then '.'記号であるかどうか |
---|
824 | i3=i2 |
---|
825 | End If |
---|
826 | |
---|
827 | If fname Then fname[i2]=path[i] |
---|
828 | |
---|
829 | i++ |
---|
830 | i2++ |
---|
831 | Loop |
---|
832 | If i3=-1 Then i3=i2 |
---|
833 | If fname Then fname[i3]=0 |
---|
834 | i3 += i-i2 |
---|
835 | |
---|
836 | '拡張子名をコピー |
---|
837 | If ext Then |
---|
838 | If i3 Then |
---|
839 | ActiveBasic.Strings.StrCpy(ext,path+i3) |
---|
840 | End If |
---|
841 | else ext[0]=0 |
---|
842 | End If |
---|
843 | End Sub |
---|
844 | |
---|
845 | Function GetBasicColor(ColorCode As Long) As Long |
---|
846 | Select Case ColorCode |
---|
847 | Case 0 |
---|
848 | GetBasicColor=RGB(0,0,0) |
---|
849 | Case 1 |
---|
850 | GetBasicColor=RGB(0,0,255) |
---|
851 | Case 2 |
---|
852 | GetBasicColor=RGB(255,0,0) |
---|
853 | Case 3 |
---|
854 | GetBasicColor=RGB(255,0,255) |
---|
855 | Case 4 |
---|
856 | GetBasicColor=RGB(0,255,0) |
---|
857 | Case 5 |
---|
858 | GetBasicColor=RGB(0,255,255) |
---|
859 | Case 6 |
---|
860 | GetBasicColor=RGB(255,255,0) |
---|
861 | Case 7 |
---|
862 | GetBasicColor=RGB(255,255,255) |
---|
863 | End Select |
---|
864 | End Function |
---|
865 | |
---|
866 | Function _System_BSwap(x As Word) As Word |
---|
867 | Dim src = VarPtr(x) As *Byte |
---|
868 | Dim dst = VarPtr(_System_BSwap) As *Byte |
---|
869 | dst[0] = src[1] |
---|
870 | dst[1] = src[0] |
---|
871 | End Function |
---|
872 | |
---|
873 | Function _System_BSwap(x As DWord) As DWord |
---|
874 | Dim src = VarPtr(x) As *Byte |
---|
875 | Dim dst = VarPtr(_System_BSwap) As *Byte |
---|
876 | dst[0] = src[3] |
---|
877 | dst[1] = src[2] |
---|
878 | dst[2] = src[1] |
---|
879 | dst[3] = src[0] |
---|
880 | End Function |
---|
881 | |
---|
882 | Function _System_BSwap(x As QWord) As QWord |
---|
883 | Dim src = VarPtr(x) As *Byte |
---|
884 | Dim dst = VarPtr(_System_BSwap) As *Byte |
---|
885 | dst[0] = src[7] |
---|
886 | dst[1] = src[6] |
---|
887 | dst[2] = src[5] |
---|
888 | dst[3] = src[4] |
---|
889 | dst[4] = src[3] |
---|
890 | dst[5] = src[2] |
---|
891 | dst[6] = src[1] |
---|
892 | dst[7] = src[0] |
---|
893 | End Function |
---|
894 | |
---|
895 | Function _System_HashFromUInt(x As QWord) As Long |
---|
896 | Return (HIDWORD(x) Xor LODWORD(x)) As Long |
---|
897 | End Function |
---|
898 | |
---|
899 | Function _System_HashFromUInt(x As DWord) As Long |
---|
900 | Return x As Long |
---|
901 | End Function |
---|
902 | |
---|
903 | Function _System_HashFromPtr(p As VoidPtr) As Long |
---|
904 | Return _System_HashFromUInt(p As ULONG_PTR) |
---|
905 | End Function |
---|
906 | |
---|
907 | /*! |
---|
908 | @brief ObjPtrの逆。ABオブジェクトを指すポインタをObject型へ変換。 |
---|
909 | @author Egtra |
---|
910 | @date 2007/08/24 |
---|
911 | @param[in] p オブジェクトを指すポインタ |
---|
912 | @return Object参照型 |
---|
913 | */ |
---|
914 | Function _System_PtrObj(p As VoidPtr) As Object |
---|
915 | SetPointer(VarPtr(_System_PtrObj), p) |
---|
916 | End Function |
---|
917 | |
---|
918 | /*! |
---|
919 | @brief IUnknownその他COMインタフェースを指すポインタをIUnknown参照型へ変換。 |
---|
920 | @author Egtra |
---|
921 | @date 2007/09/24 |
---|
922 | @param[in] p COMインタフェースを指すポインタ |
---|
923 | @return IUnknown参照型 |
---|
924 | */ |
---|
925 | Function _System_PtrUnknown(p As VoidPtr) As IUnknown |
---|
926 | SetPointer(VarPtr(_System_PtrUnknown), p) |
---|
927 | End Function |
---|
928 | |
---|
929 | '-------- |
---|
930 | ' 文字列関数その2 |
---|
931 | '-------- |
---|
932 | Function _System_IsSurrogatePair(wcHigh As WCHAR, wcLow As WCHAR) As Boolean |
---|
933 | If _System_IsHighSurrogate(wcHigh) Then |
---|
934 | If _System_IsLowSurrogate(wcLow) Then |
---|
935 | Return True |
---|
936 | End If |
---|
937 | End If |
---|
938 | Return False |
---|
939 | End Function |
---|
940 | |
---|
941 | Function _System_IsHighSurrogate(c As WCHAR) As Boolean |
---|
942 | Return &hD800 <= c And c < &hDC00 |
---|
943 | End Function |
---|
944 | |
---|
945 | Function _System_IsLowSurrogate(c As WCHAR) As Boolean |
---|
946 | Return &hDC00 <= c And c < &hE000 |
---|
947 | End Function |
---|
948 | |
---|
949 | Function _System_IsDoubleUnitChar(lead As WCHAR, trail As WCHAR) As Boolean |
---|
950 | Return _System_IsSurrogatePair(lead, trail) |
---|
951 | End Function |
---|
952 | |
---|
953 | Function _System_IsDoubleUnitChar(lead As SByte, trail As SByte) As Boolean |
---|
954 | Return IsDBCSLeadByte(lead) <> FALSE |
---|
955 | End Function |
---|
956 | |
---|
957 | Function _System_GetHashFromWordArray(p As *Word, n As SIZE_T) As Long |
---|
958 | Dim hash = 0 As DWord |
---|
959 | Dim i As Long |
---|
960 | For i = 0 To ELM(n) |
---|
961 | hash = ((hash << 16) + p[i]) Mod &h7fffffff |
---|
962 | Next |
---|
963 | _System_GetHashFromWordArray = hash As Long |
---|
964 | End Function |
---|