ref: c57ac95f174df44f16c7ca72ea195bb338941f12
dir: /libentcode/probmod.c/
#include <stdlib.h> #include <string.h> #include "probmod.h" #include "bitree.h" void ec_probmod_init(ec_probmod *_this,unsigned _sz){ ec_probmod_init_full(_this,_sz,1U,1U<<23,NULL); } void ec_probmod_init_from_counts(ec_probmod *_this,unsigned _sz, const unsigned *_counts){ ec_probmod_init_full(_this,_sz,1U,1U<<23,_counts); } void ec_probmod_init_full(ec_probmod *_this,unsigned _sz,unsigned _inc, unsigned _thresh,const unsigned *_counts){ unsigned s; _this->sz=_sz; for(s=1;s<=_this->sz;s<<=1); _this->split=s>>1; _this->inc=_inc; _this->thresh=_thresh; _this->bitree=(unsigned *)malloc(_sz*sizeof(*_this->bitree)); if(_counts!=NULL)memcpy(_this->bitree,_counts,_sz*sizeof(*_this->bitree)); else for(s=0;s<_this->sz;s++)_this->bitree[s]=1; ec_bitree_from_counts(_this->bitree,_sz); _this->ft=ec_bitree_get_cumul(_this->bitree,_sz); } void ec_probmod_clear(ec_probmod *_this){ free(_this->bitree); }