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| 34 | // in range excluding end |
34 | // in range excluding end |
| 35 | #define IN_RANGE_EXC(val,beg,end) \ |
35 | #define IN_RANGE_EXC(val,beg,end) \ |
| 36 | ((unsigned int)(val) - (unsigned int)(beg) < (unsigned int)(end) - (unsigned int)(beg)) |
36 | ((unsigned int)(val) - (unsigned int)(beg) < (unsigned int)(end) - (unsigned int)(beg)) |
| 37 | |
37 | |
| 38 | void fork_abort (const char *msg); |
38 | void fork_abort (const char *msg); |
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39 | |
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40 | template<typename T, typename U> static inline T min (T a, U b) { return a < (T)b ? a : (T)b; } |
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41 | template<typename T, typename U> static inline T max (T a, U b) { return a > (T)b ? a : (T)b; } |
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42 | template<typename T, typename U, typename V> static inline T clamp (T v, U a, V b) { return v < (T)a ? a : v >(T)b ? b : v; } |
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43 | |
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44 | template<typename T, typename U> static inline void swap (T& a, U& b) { T t=a; a=(T)b; b=(U)t; } |
| 39 | |
45 | |
| 40 | // this is much faster than crossfires original algorithm |
46 | // this is much faster than crossfires original algorithm |
| 41 | // on modern cpus |
47 | // on modern cpus |
| 42 | inline int |
48 | inline int |
| 43 | isqrt (int n) |
49 | isqrt (int n) |
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| 183 | { |
189 | { |
| 184 | p->~Tp (); |
190 | p->~Tp (); |
| 185 | } |
191 | } |
| 186 | }; |
192 | }; |
| 187 | |
193 | |
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194 | // P. L'Ecuyer, “Maximally Equidistributed Combined Tausworthe Generators”, Mathematics of Computation, 65, 213 (1996), 203–213. |
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195 | // http://www.iro.umontreal.ca/~lecuyer/myftp/papers/tausme.ps |
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196 | // http://www.iro.umontreal.ca/~lecuyer/myftp/papers/tausme2.ps |
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197 | struct tausworthe_random_generator |
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198 | { |
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199 | uint32_t state [4]; |
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200 | |
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201 | tausworthe_random_generator (uint32_t seed); |
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202 | uint32_t next (); |
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203 | |
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204 | uint32_t operator ()(uint32_t r_max) |
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205 | { |
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206 | return next () % r_max; |
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207 | } |
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208 | |
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209 | // return a number within (min .. max) |
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210 | int operator () (int r_min, int r_max) |
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211 | { |
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212 | return r_min + next () % max (r_max - r_min + 1, 1); |
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213 | } |
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214 | |
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215 | double operator ()() |
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216 | { |
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217 | return next () / (double)0xFFFFFFFFU; |
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218 | } |
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219 | }; |
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220 | |
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221 | typedef tausworthe_random_generator rand_gen; |
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222 | |
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223 | extern rand_gen rndm; |
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224 | |
| 188 | template<class T> |
225 | template<class T> |
| 189 | struct refptr |
226 | struct refptr |
| 190 | { |
227 | { |
| 191 | T *p; |
228 | T *p; |
| 192 | |
229 | |
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| 309 | { |
346 | { |
| 310 | errase (&obj); |
347 | errase (&obj); |
| 311 | } |
348 | } |
| 312 | }; |
349 | }; |
| 313 | |
350 | |
| 314 | template<typename T, typename U> static inline T min (T a, U b) { return a < (T)b ? a : (T)b; } |
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| 315 | template<typename T, typename U> static inline T max (T a, U b) { return a > (T)b ? a : (T)b; } |
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| 316 | template<typename T, typename U, typename V> static inline T clamp (T v, U a, V b) { return v < (T)a ? a : v >(T)b ? b : v; } |
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| 317 | |
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| 318 | template<typename T, typename U> static inline void swap (T& a, U& b) { T t=a; a=(T)b; b=(U)t; } |
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| 319 | |
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| 320 | // basically does what strncpy should do, but appends "..." to strings exceeding length |
351 | // basically does what strncpy should do, but appends "..." to strings exceeding length |
| 321 | void assign (char *dst, const char *src, int maxlen); |
352 | void assign (char *dst, const char *src, int maxlen); |
| 322 | |
353 | |
| 323 | // type-safe version of assign |
354 | // type-safe version of assign |
| 324 | template<int N> |
355 | template<int N> |
