| … | |
… | |
| 18 | |
18 | |
| 19 | #include <shstr.h> |
19 | #include <shstr.h> |
| 20 | #include <traits.h> |
20 | #include <traits.h> |
| 21 | |
21 | |
| 22 | // use a gcc extension for auto declarations until ISO C++ sanctifies them |
22 | // use a gcc extension for auto declarations until ISO C++ sanctifies them |
| 23 | #define AUTODECL(var,expr) typeof(expr) var = (expr) |
23 | #define auto(var,expr) typeof(expr) var = (expr) |
| 24 | |
24 | |
| 25 | // very ugly macro that basicaly declares and initialises a variable |
25 | // very ugly macro that basicaly declares and initialises a variable |
| 26 | // that is in scope for the next statement only |
26 | // that is in scope for the next statement only |
| 27 | // works only for stuff that can be assigned 0 and converts to false |
27 | // works only for stuff that can be assigned 0 and converts to false |
| 28 | // (note: works great for pointers) |
28 | // (note: works great for pointers) |
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… | |
| 262 | |
262 | |
| 263 | void seed (uint32_t seed); |
263 | void seed (uint32_t seed); |
| 264 | uint32_t next (); |
264 | uint32_t next (); |
| 265 | |
265 | |
| 266 | // uniform distribution |
266 | // uniform distribution |
| 267 | uint32_t operator ()(uint32_t r_max) |
267 | uint32_t operator ()(uint32_t num) |
| 268 | { |
268 | { |
| 269 | return is_constant (r_max) |
269 | return is_constant (num) |
| 270 | ? this->next () % r_max |
270 | ? (next () * (uint64_t)num) >> 32U |
| 271 | : get_range (r_max); |
271 | : get_range (num); |
| 272 | } |
272 | } |
| 273 | |
273 | |
| 274 | // return a number within (min .. max) |
274 | // return a number within (min .. max) |
| 275 | int operator () (int r_min, int r_max) |
275 | int operator () (int r_min, int r_max) |
| 276 | { |
276 | { |
| 277 | return is_constant (r_min) && is_constant (r_max) |
277 | return is_constant (r_min) && is_constant (r_max) && r_min <= r_max |
| 278 | ? r_min + (*this) (max (r_max - r_min + 1, 1)) |
278 | ? r_min + operator ()(r_max - r_min + 1) |
| 279 | : get_range (r_min, r_max); |
279 | : get_range (r_min, r_max); |
| 280 | } |
280 | } |
| 281 | |
281 | |
| 282 | double operator ()() |
282 | double operator ()() |
| 283 | { |
283 | { |
| … | |
… | |
| 399 | } |
399 | } |
| 400 | |
400 | |
| 401 | void erase (T *obj) |
401 | void erase (T *obj) |
| 402 | { |
402 | { |
| 403 | assert (obj->*index); |
403 | assert (obj->*index); |
| 404 | int pos = obj->*index; |
404 | unsigned int pos = obj->*index; |
| 405 | obj->*index = 0; |
405 | obj->*index = 0; |
| 406 | |
406 | |
| 407 | if (pos < this->size ()) |
407 | if (pos < this->size ()) |
| 408 | { |
408 | { |
| 409 | (*this)[pos - 1] = (*this)[this->size () - 1]; |
409 | (*this)[pos - 1] = (*this)[this->size () - 1]; |
| … | |
… | |
| 434 | // return current time as timestampe |
434 | // return current time as timestampe |
| 435 | tstamp now (); |
435 | tstamp now (); |
| 436 | |
436 | |
| 437 | int similar_direction (int a, int b); |
437 | int similar_direction (int a, int b); |
| 438 | |
438 | |
|
|
439 | // like printf, but returns a std::string |
|
|
440 | const std::string format (const char *format, ...); |
|
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441 | |
| 439 | #endif |
442 | #endif |
| 440 | |
443 | |
