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Rev | Author | Line No. | Line |
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990 | barsuk | 1 | |
2 | |||
3 | //#include |
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4 | //#include |
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5 | //#include |
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6 | |||
7 | // token types |
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8 | |||
9 | #define VARIABLE 2 |
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10 | #define NUMBER 3 |
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11 | #define FUNCTION 4 |
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12 | #define FINISHED 10 |
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13 | |||
14 | //#define allocmem(x) malloc(x) |
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15 | |||
16 | |||
17 | double epsilon = 1e-6; |
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18 | |||
19 | // structure for most parser functions |
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20 | |||
21 | char token[80]; |
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22 | |||
23 | char *prog; |
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24 | |||
25 | int code; // error code |
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26 | |||
27 | |||
28 | |||
29 | |||
30 | struct double_list |
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31 | |||
32 | double val; |
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33 | int code; // код ошибки |
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34 | double_list *next; |
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35 | }; |
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36 | |||
37 | double tg(double d) |
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38 | |||
39 | double cosd = cos(d); |
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40 | if (fabs(cosd) < epsilon) |
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41 | { |
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42 | serror(ERR_OVERFLOW); |
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43 | return 0.0; |
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44 | } |
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45 | return sin(d) / cosd; |
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46 | } |
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47 | |||
48 | double ctg(double d) |
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49 | |||
50 | double sind = sin(d); |
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51 | if (fabs(sind) < epsilon) |
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52 | { |
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53 | serror(ERR_OVERFLOW); |
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54 | return 0.0; |
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55 | } |
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56 | return cos(d) / sind; |
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57 | } |
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58 | |||
59 | double exp(double x) |
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60 | |||
61 | __asm { |
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62 | fld x |
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63 | FLDL2E |
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64 | FMUL |
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65 | |||
66 | FLD st(0) |
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67 | |||
68 | FLD1 |
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69 | |||
70 | FXCH |
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71 | |||
72 | F2XM1 |
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73 | fadd |
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74 | FSCALE |
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75 | FSTP st(1) |
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76 | } |
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77 | |||
78 | } |
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79 | |||
80 | double log(double x) |
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81 | |||
82 | //return 0.0; |
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83 | if (x <= 0) |
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84 | { |
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85 | serror(ERR_OVERFLOW); |
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86 | //return 0.0; |
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87 | __asm { |
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88 | fldz |
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89 | } |
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90 | } |
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91 | __asm { |
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92 | FLD1 |
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93 | FLD x |
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94 | FYL2X |
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95 | FLDLN2 |
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96 | FMUL |
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97 | } |
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98 | } |
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99 | |||
100 | double sqrt(double x) |
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101 | |||
102 | if (x < 0) |
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103 | { |
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104 | serror(ERR_BADPARAM); |
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105 | __asm { |
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106 | fldz |
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107 | } |
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108 | } |
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109 | __asm { |
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110 | fld x |
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111 | fsqrt |
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112 | } |
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113 | } |
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114 | |||
115 | double atan(double x) |
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116 | |||
117 | serror(ERR_GENERAL); |
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118 | return 0.0; // в лом |
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119 | } |
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120 | |||
121 | double pow(double x, double y) |
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122 | |||
123 | return exp(y * log(x)); // |
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124 | } |
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125 | |||
126 | double func_pi() |
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127 | |||
128 | return 3.14159265358979; |
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129 | } |
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130 | |||
131 | double func_eps() |
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132 | |||
133 | return epsilon; |
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134 | } |
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135 | |||
136 | double func_if(double_list *p) |
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137 | |||
138 | double_list *a, *b, *c; |
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139 | a = p; |
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140 | b = a->next; |
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141 | if (!b) |
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142 | { |
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143 | serror(ERR_BADPARAM); |
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144 | return 0.0; |
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145 | } |
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146 | c = b->next; |
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147 | if (!c || c->next) |
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148 | { |
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149 | serror(ERR_BADPARAM); |
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150 | return 0.0; |
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151 | } |
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152 | if (a->val != 0.0) |
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153 | { |
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154 | if (b->code) |
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155 | code = b->code; |
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156 | return b->val; |
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157 | } |
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158 | else |
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159 | { |
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160 | if (c->code) |
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161 | code = c->code; |
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162 | return c->val; |
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163 | } |
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164 | } |
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165 | |||
166 | double sum(double_list *p) |
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167 | |||
168 | double res = 0.0; |
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169 | while (p) |
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170 | { |
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171 | res += p->val; |
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172 | if (p->code) |
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173 | code = p->code; |
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174 | p = p->next; |
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175 | } |
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176 | return res; |
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177 | } |
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178 | |||
179 | double func_min(double_list *p) |
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180 | |||
181 | if (!p) |
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182 | serror(ERR_BADPARAM); |
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183 | double res = p->val; |
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184 | p = p->next; |
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185 | while (p) |
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186 | { |
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187 | if (p->code) |
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188 | code = p->code; |
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189 | if (p->val < res) |
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190 | res = p->val; |
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191 | p = p->next; |
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192 | } |
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193 | return res; |
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194 | } |
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195 | |||
196 | double func_max(double_list *p) |
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197 | |||
198 | if (!p) |
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199 | serror(ERR_BADPARAM); |
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200 | double res = p->val; |
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201 | p = p->next; |
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202 | while (p) |
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203 | { |
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204 | if (p->code) |
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205 | code = p->code; |
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206 | if (p->val > res) |
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207 | res = p->val; |
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208 | p = p->next; |
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209 | } |
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210 | return res; |
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211 | } |
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212 | |||
213 | double avg(double_list *p) |
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214 | |||
215 | double res = 0.0; |
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216 | int count = 0; |
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217 | while (p) |
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218 | { |
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219 | if (p->code) |
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220 | code = p->code; |
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221 | res += p->val; |
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222 | count++; |
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223 | p = p->next; |
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224 | } |
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225 | return res / count; |
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226 | } |
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227 | |||
228 | double func_isnull(char *str) |
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229 | |||
230 | if (code != 0) |
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231 | return 0.0; |
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232 | double tmp = find_var(str); |
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233 | int c = code; |
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234 | code = 0; |
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235 | if (c != 0) |
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236 | return 1.0; |
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237 | return 0.0; |
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238 | } |
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239 | |||
240 | const double HALF = 0.5; |
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241 | |||
242 | { |
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243 | int x; |
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244 | __asm fld val |
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245 | __asm fld HALF // да, криворуко ^_^ |
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246 | __asm fadd |
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247 | __asm fistp x |
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248 | __asm fild x |
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249 | } |
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250 | |||
251 | double func_round(double val) |
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252 | |||
253 | int x; |
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254 | __asm fld val |
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255 | __asm fld epsilon |
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256 | __asm fadd |
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257 | __asm fistp x |
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258 | __asm fild x |
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259 | } |
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260 | |||
261 | const double ALMOST_HALF = 0.5 - epsilon; |
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262 | |||
263 | { |
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264 | int x; |
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265 | __asm fld val |
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266 | __asm fld ALMOST_HALF |
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267 | __asm fsub |
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268 | __asm fistp x |
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269 | __asm fild x |
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270 | } |
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271 | |||
272 | double logic_xor(double a, double b) |
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273 | |||
274 | if (a == 0.0) |
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275 | if (b == 0.0) |
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276 | return 0.0; |
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277 | else |
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278 | return 1.0; |
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279 | else |
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280 | if (b == 0.0) |
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281 | return 1.0; |
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282 | else |
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283 | return 0.0; |
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284 | } |
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285 | |||
286 | double logic_and(double a, double b) |
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287 | |||
288 | if (a == 0.0) |
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289 | return 0.0; |
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290 | else |
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291 | if (b == 0.0) |
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292 | return 0.0; |
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293 | else |
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294 | return 1.0; |
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295 | } |
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296 | |||
297 | double logic_or(double a, double b) |
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298 | |||
299 | if (a == 0.0) |
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300 | if (b == 0.0) |
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301 | return 0.0; |
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302 | else |
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303 | return 1.1; |
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304 | else |
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305 | return 1.0; |
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306 | } |
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307 | |||
308 | double rand_seed; |
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309 | |||
310 | { |
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311 | double q = (257.0 * rand_seed + 739.0); // числа от балды. надо вставить правильные. |
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312 | rand_seed = q - 65536.0 * func_floor(q / 65536.0); // для хорошего распределения |
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313 | return q - max * func_floor(q / max); // для модуля |
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314 | } |
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315 | |||
316 | double func_case(double_list *p) |
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317 | |||
318 | if (!p || !p->next) |
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319 | { |
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320 | serror(ERR_BADPARAM); |
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321 | return 0.0; |
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322 | } |
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323 | double x = p->val; |
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324 | int count = (int)p->next->val; |
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325 | int i, k; |
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326 | |||
327 | double_list *cur = p->next->next; |
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328 | |||
329 | for (i = 0; i < count; i++) |
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330 | { |
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331 | if (!cur) |
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332 | { |
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333 | serror(ERR_BADPARAM); |
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334 | return 0.0; |
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335 | } |
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336 | if (fabs(x - cur->val) < epsilon) |
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337 | { |
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338 | if (k != count + 1) |
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339 | { |
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340 | serror(ERR_GENERAL); |
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341 | return 0.0; |
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342 | } |
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343 | k = i; |
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344 | } |
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345 | cur = cur->next; |
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346 | } |
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347 | |||
348 | for (i = 0; i < k; i++) |
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349 | |||
350 | if (!cur) |
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351 | { |
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352 | serror(ERR_BADPARAM); |
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353 | return 0.0; |
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354 | } |
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355 | cur = cur->next; |
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356 | } |
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357 | if (!cur) // проверки бип. достали бип. |
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358 | { |
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359 | serror(ERR_BADPARAM); |
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360 | return 0.0; |
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361 | } |
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362 | if (cur->code) |
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363 | code = cur->code; |
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364 | return cur->val; |
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365 | } |
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366 | |||
367 | #define INF_ARGS -1 |
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368 | |||
369 | |||
370 | // represents general mathematical function |
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371 | |||
372 | typedef double(*matfunc)(double); |
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373 | typedef double(*matfunc2)(double,double); |
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374 | typedef double(*matfunc3)(double,double,double); |
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375 | typedef double(*matfunc_inf)(double_list*); |
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376 | typedef double(*matfunc_str)(char*); |
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377 | |||
378 | // used to link function name to the function |
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379 | |||
380 | { |
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381 | char name[10]; |
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382 | int args; |
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383 | void * f; |
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384 | } func; |
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385 | |||
386 | // the list of functions |
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387 | |||
388 | func functions[max_func] = |
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389 | { |
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390 | "", 1, NULL, // не помню, с какой целью |
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391 | "sin", 1, &sin, |
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392 | "cos", 1, &cos, |
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393 | "exp", 1, &exp, |
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394 | "sqrt", 1, &sqrt, |
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395 | "log", 1, &log, |
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396 | "tg", 1, &tg, |
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397 | "ctg", 1, &ctg, |
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398 | "arcsin", 1, &asin, |
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399 | "arccos", 1, &acos, |
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400 | "arctg", 1, &atan, // не реализовано. возвращает ошибку ERR_GENERAL |
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401 | "abs", 1, &fabs, |
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402 | "pow", 2, &pow, |
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403 | "if", INF_ARGS, &func_if, |
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404 | "sum",INF_ARGS,&sum, |
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405 | "isnull",STR_ARG,&func_isnull, // слегка ч/ж |
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406 | "min",INF_ARGS,&func_min, |
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407 | "max",INF_ARGS,&func_max, |
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408 | "avg",INF_ARGS,&avg, |
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409 | "ceil",1,&func_ceil, |
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410 | "round",1,&func_round, |
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411 | "floor",1,&func_floor, |
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412 | "and",2,&logic_and, |
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413 | "or",2,&logic_or, |
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414 | "xor",2,&logic_xor, |
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415 | "rand",1,&func_rand, |
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416 | "case",INF_ARGS,&func_case, |
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417 | "pi",0,&func_pi, |
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418 | "eps",0,&func_eps |
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419 | }; |
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420 | |||
421 | // all delimiters |
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422 | |||
423 | const char delim[MAXDELIM]="+-*^/%=;(),><#! "; // not bad words |
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424 | |||
425 | |||
426 | |||
427 | |||
428 | //return strchr(delim, c) != 0; |
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429 | for (int i = 0; i < MAXDELIM; i++) |
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430 | if (c == delim[i]) |
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431 | return 1; |
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432 | return 0; |
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433 | } |
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434 | |||
435 | int isdigit(char c) |
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436 | |||
437 | return (c >= '0' && c <= '9'); |
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438 | } |
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439 | |||
440 | int isalpha2(char c) |
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441 | |||
442 | return ((c >= 'a' && c <= 'z') |
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443 | || (c >= 'A' && c <= 'Z') || (c=='$')); |
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444 | } |
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445 | |||
446 | int iswhite(char c) |
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447 | |||
448 | return (c==' ' || c=='\t'); |
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449 | } |
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450 | |||
451 | |||
452 | |||
453 | |||
454 | if (acode != 0) |
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455 | code = acode; |
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456 | } |
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457 | |||
458 | void set_exp(char *exp) |
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459 | |||
460 | prog = exp; |
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461 | } |
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462 | |||
463 | int get_token() |
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464 | |||
465 | int tok; |
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466 | char *temp; |
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467 | (token_type) = 0; |
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468 | tok = 0; |
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469 | temp = (token); |
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470 | |||
471 | if (*(prog) == '\0') |
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472 | |||
473 | *(token) = 0; |
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474 | tok = FINISHED; |
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475 | return ((token_type) = DELIMITER); |
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476 | } |
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477 | while (iswhite(*(prog))) ++(prog); |
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478 | if (isdelim(*(prog))) |
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479 | { |
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480 | char t=*temp = *(prog); |
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481 | (prog)++; |
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482 | temp++; |
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483 | if ((t == '>' || t == '<' || t == '!') && (*prog) && (*prog == '=')) |
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484 | { |
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485 | *temp = *(prog); |
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486 | (prog)++; |
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487 | temp++; |
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488 | } |
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489 | *temp = 0; |
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490 | return ((token_type) = DELIMITER); |
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491 | } |
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492 | if (isdigit(*(prog))) |
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493 | { |
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494 | while (!isdelim(*(prog))) |
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495 | *temp++=*(prog)++; |
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496 | *temp = '\0'; |
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497 | return ((token_type) = NUMBER); |
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498 | } |
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499 | if (isalpha2(*(prog))) |
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500 | { |
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501 | while (!isdelim(*(prog))) |
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502 | *temp++=*(prog)++; |
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503 | (token_type) = VARIABLE; |
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504 | } |
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505 | *temp = '\0'; |
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506 | if ((token_type) == VARIABLE) |
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507 | { |
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508 | tok = look_up((token)); |
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509 | if (tok) |
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510 | (token_type) = FUNCTION; |
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511 | } |
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512 | return (token_type); |
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513 | } |
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514 | |||
515 | double sign(double d) |
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516 | |||
517 | if (d > 0.0) |
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518 | return 1.0; |
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519 | if (d < 0.0) |
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520 | return -1.0; |
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521 | return 0.0; |
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522 | } |
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523 | |||
524 | void putback() |
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525 | |||
526 | char *t; |
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527 | t = (token); |
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528 | for (;*t;t++) |
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529 | (prog)--; |
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530 | } |
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531 | |||
532 | int get_exp(double *hold) |
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533 | |||
534 | code = 0; |
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535 | |||
536 | get_token(); |
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537 | |||
538 | { |
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539 | return 0; |
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540 | } |
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541 | level1( hold); |
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542 | putback(); |
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543 | return code==0; |
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544 | } |
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545 | |||
546 | void level1(double *hold) |
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547 | |||
548 | char op[2]; |
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549 | double h; |
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550 | |||
551 | level1_5( hold); |
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552 | |||
553 | *op == '<' || *op == '>' || *op == '=' || *op == '#' || *op == '!') |
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554 | { |
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555 | get_token(); |
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556 | level1_5( &h); |
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557 | logic(op, hold, &h); |
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558 | } |
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559 | } |
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560 | |||
561 | void level1_5(double *hold) |
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562 | |||
563 | char op; |
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564 | |||
565 | op = 0; |
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566 | |||
567 | { |
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568 | op = *(token); |
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569 | get_token(); |
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570 | } |
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571 | level2( hold); |
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572 | |||
573 | if (op) |
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574 | |||
575 | if (*hold == 0.0) |
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576 | *hold = 1.0; |
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577 | else |
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578 | *hold = 0.0; |
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579 | } |
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580 | } |
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581 | |||
582 | void level2(double *hold) |
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583 | |||
584 | char op; |
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585 | double h; |
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586 | |||
587 | level3( hold); |
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588 | |||
589 | { |
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590 | get_token(); |
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591 | level3( &h); |
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592 | arith(op, hold, &h); |
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593 | } |
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594 | } |
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595 | |||
596 | void level3(double *hold) |
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597 | |||
598 | char op; |
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599 | double h; |
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600 | |||
601 | level4( hold); |
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602 | |||
603 | { |
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604 | get_token(); |
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605 | level4( &h); |
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606 | arith( op, hold, &h); |
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607 | } |
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608 | } |
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609 | |||
610 | void level4(double *hold) |
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611 | |||
612 | double h; |
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613 | level5( hold); |
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614 | |||
615 | if (*(token) == '^') |
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616 | |||
617 | get_token(); |
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618 | level5( &h); |
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619 | arith( '^', hold, &h); |
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620 | } |
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621 | } |
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622 | |||
623 | void level5(double *hold) |
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624 | |||
625 | char op; |
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626 | |||
627 | op = 0; |
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628 | |||
629 | { |
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630 | op = *(token); |
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631 | get_token(); |
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632 | } |
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633 | level6( hold); |
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634 | |||
635 | if (op) |
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636 | |||
637 | } |
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638 | |||
639 | void level6(double *hold) |
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640 | |||
641 | if ((*(token) == '(') && ((token_type) == DELIMITER)) |
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642 | { |
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643 | get_token(); |
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644 | level1( hold); |
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645 | if (*(token) != ')') |
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646 | serror( ERR_NOBRACKET); |
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647 | get_token(); |
||
648 | } |
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649 | else |
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650 | primitive( hold); |
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651 | } |
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652 | |||
653 | void calc_function(double *hold) |
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654 | |||
655 | double_list *args = NULL, *last = NULL, *t; |
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656 | double d; |
||
657 | int i,argc=0,save_code; |
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658 | |||
659 | save_code = code; |
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660 | |||
661 | i = look_up(token); |
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662 | |||
663 | if (i == 0) |
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664 | |||
665 | |||
666 | get_token(); |
||
667 | |||
668 | serror(ERR_NOBRACKET); // error |
||
669 | //get_token(); |
||
670 | if (functions[i].args == STR_ARG) |
||
671 | { |
||
672 | get_token(); |
||
673 | d = ((matfunc_str)(functions[i].f))(token); |
||
674 | *hold = d; |
||
675 | get_token(); |
||
676 | if (save_code) |
||
677 | code = save_code; |
||
678 | return; |
||
679 | } |
||
680 | |||
681 | //last = args = (double_list*)malloc(sizeof(double_list)); |
||
682 | |||
683 | //level1(&args->val); |
||
684 | //get_token(); |
||
685 | argc=0; |
||
686 | do |
||
687 | { |
||
688 | get_token(); |
||
689 | if (*token == ')') |
||
690 | break; |
||
691 | t = (double_list*)allocmem(sizeof(double_list)); |
||
692 | code = 0; |
||
693 | level1(&t->val); |
||
694 | t->code = code; |
||
695 | t->next = NULL; |
||
696 | if (last) |
||
697 | last->next = t; |
||
698 | else |
||
699 | args = t; |
||
700 | last = t; |
||
701 | argc++; |
||
702 | } while (*token == ','); |
||
703 | |||
704 | code = save_code; |
||
705 | |||
706 | if (argc != functions[i].args && functions[i].args >= 0) |
||
707 | |||
708 | serror(ERR_BADPARAM); |
||
709 | } |
||
710 | else |
||
711 | { |
||
712 | switch (functions[i].args) |
||
713 | { |
||
714 | case 0: |
||
715 | d = ((matfunc0)(functions[i].f))(); |
||
716 | break; |
||
717 | case 1: |
||
718 | d = ((matfunc)(functions[i].f))(args->val); |
||
719 | break; |
||
720 | case 2: |
||
721 | d = ((matfunc2)(functions[i].f))(args->val,args->next->val); |
||
722 | break; |
||
723 | case 3: |
||
724 | d = ((matfunc3)(functions[i].f))(args->val,args->next->val,args->next->next->val); |
||
725 | break; |
||
726 | case INF_ARGS: |
||
727 | d = ((matfunc_inf)(functions[i].f))(args); |
||
728 | break; |
||
729 | } |
||
730 | } |
||
731 | |||
732 | t = args; |
||
733 | |||
734 | { |
||
735 | args = t->next; |
||
736 | freemem(t); |
||
737 | t = args; |
||
738 | } |
||
739 | |||
740 | *hold = d; |
||
741 | |||
742 | // serror( ERR_OVERFLOW); |
||
743 | |||
744 | } |
||
745 | |||
746 | void primitive(double *hold) |
||
747 | |||
748 | switch (token_type) |
||
749 | { |
||
750 | case VARIABLE: |
||
751 | *hold = find_var(token); |
||
752 | get_token(); |
||
753 | return; |
||
754 | case NUMBER: |
||
755 | // |
||
756 | *hold = atof((token)); |
||
757 | //if (sscanf(token, "%lf", hold) != 1) |
||
758 | *hold = convert(token); |
||
759 | if (convert_error == ERROR) |
||
760 | serror( ERR_BADNUMER); |
||
761 | get_token(); |
||
762 | return; |
||
763 | case FUNCTION: |
||
764 | calc_function( hold); |
||
765 | if (*token != ')') |
||
766 | serror(ERR_NOBRACKET); |
||
767 | get_token(); |
||
768 | return; |
||
769 | default: // error |
||
770 | return; |
||
771 | } |
||
772 | } |
||
773 | |||
774 | void arith(char op, double *r, double *h) |
||
775 | |||
776 | double t; |
||
777 | switch(op) |
||
778 | { |
||
779 | case '-': |
||
780 | *r = *r - *h; |
||
781 | break; |
||
782 | case '+': |
||
783 | *r = *r + *h; |
||
784 | break; |
||
785 | case '*': |
||
786 | *r = *r * *h; |
||
787 | break; |
||
788 | case '/': |
||
789 | if (fabs(*h) < epsilon) |
||
790 | serror( ERR_OVERFLOW); |
||
791 | else |
||
792 | *r = (*r) / (*h); |
||
793 | break; |
||
794 | case '%': |
||
795 | if (fabs(*h) < epsilon) |
||
796 | serror( ERR_OVERFLOW); |
||
797 | else |
||
798 | { |
||
799 | t = func_floor ((*r) / (*h)); |
||
800 | *r = *r - (t * (*h)); |
||
801 | } |
||
802 | break; |
||
803 | case '^': |
||
804 | *r = pow(*r, *h); |
||
805 | break; |
||
806 | } |
||
807 | } |
||
808 | |||
809 | void logic(char *op, double *r, double *h) |
||
810 | |||
811 | double t; |
||
812 | switch (*op) |
||
813 | { |
||
814 | case '<': |
||
815 | if (*(op+1) && *(op+1) == '=') |
||
816 | t = *r <= *h + epsilon ? 1.0 : 0.0; |
||
817 | else |
||
818 | t = *r < *h - epsilon? 1.0 : 0.0; |
||
819 | break; |
||
820 | case '>': |
||
821 | if (*(op+1) && *(op+1) == '=') |
||
822 | t = *r >= *h - epsilon ? 1.0 : 0.0; |
||
823 | else |
||
824 | t = *r > *h + epsilon ? 1.0 : 0.0; |
||
825 | break; |
||
826 | case '=': |
||
827 | t = fabs(*r - *h) <= epsilon ? 1.0 : 0.0; |
||
828 | break; |
||
829 | case '#': |
||
830 | t = fabs(*r - *h) > epsilon ? 1.0 : 0.0; |
||
831 | break; |
||
832 | case '!': |
||
833 | if (*(op+1) && *(op+1) == '=') |
||
834 | t = fabs(*r - *h) > epsilon ? 1.0 : 0.0; |
||
835 | else |
||
836 | serror(ERR_GENERAL); |
||
837 | break; |
||
838 | } |
||
839 | *r = t; |
||
840 | } |
||
841 | |||
842 | |||
843 | |||
844 | |||
845 | if (op == '-') |
||
846 | *r = -(*r); |
||
847 | } |
||
848 | |||
849 | bool strcmp(char *s1, char *s2) |
||
850 | |||
851 | int i; |
||
852 | |||
853 | if (s1 == NULL) |
||
854 | |||
855 | return 0; |
||
856 | else |
||
857 | return 1; |
||
858 | else |
||
859 | if (s2 == NULL) |
||
860 | return 1; |
||
861 | |||
862 | for (i = 0;;i++) |
||
863 | |||
864 | if (s1[i] == '\0') |
||
865 | if (s2[i] == '\0') |
||
866 | return 0; |
||
867 | else |
||
868 | return 1; |
||
869 | else |
||
870 | if (s2[i] == '\0') |
||
871 | return 1; |
||
872 | else |
||
873 | { |
||
874 | if (s1[i] != s2[i]) |
||
875 | return 1; |
||
876 | } |
||
877 | } |
||
878 | return 0; |
||
879 | } |
||
880 | |||
881 | |||
882 | |||
883 | |||
884 | int i; |
||
885 | |||
886 | if (s1 == NULL) |
||
887 | |||
888 | return 0; |
||
889 | else |
||
890 | return 1; |
||
891 | else |
||
892 | if (s2 == NULL) |
||
893 | return 1; |
||
894 | |||
895 | for (i = 0;i |
||
896 | |||
897 | if (s1[i] == '\0') |
||
898 | if (s2[i] == '\0') |
||
899 | return 0; |
||
900 | else |
||
901 | return 1; |
||
902 | else |
||
903 | if (s2[i] == '\0') |
||
904 | return 1; |
||
905 | else |
||
906 | { |
||
907 | if (s1[i] != s2[i]) |
||
908 | return 1; |
||
909 | } |
||
910 | } |
||
911 | return 0; |
||
912 | } |
||
913 | |||
914 | int look_up(char *s) |
||
915 | |||
916 | int i; |
||
917 | |||
918 | for (i = 0; i < max_func; i++) |
||
919 | |||
920 | return i; |
||
921 | return 0; // search command/function name |
||
922 | }> |
||
923 | >=>>=>': |
||
924 | >>>'>>'>=>=>=>>#!>>>>>>=>>> |
||
925 |