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39 #ifndef _SIM_IDNGRAM_H
40 #define _SIM_IDNGRAM_H
42 #include "../../portability.h"
43 #include "../sim_fmerge.h"
51 { for (int i = 0; i < N; ++i) ids[i] = 0; }
52 CSIM_Idngram & operator=(const CSIM_Idngram& r){
53 for (int i = 0; i < N; ++i)
57 bool operator<(const CSIM_Idngram& r) const {
58 for (int i = 0; i < N; ++i) {
59 if (ids[i] < r.ids[i])
61 else if (ids[i] > r.ids[i])
67 bool operator>(const CSIM_Idngram& r) const {
68 for (int i = 0; i < N; ++i) {
69 if (ids[i] > r.ids[i])
71 else if (ids[i] < r.ids[i])
77 bool operator==(const CSIM_Idngram& r) const {
78 for (int i = 0; i < N; ++i)
79 if (ids[i] != r.ids[i]) return false;
86 class CSIM_IdngramFreq : public CSIM_Idngram<N> {
89 : CSIM_Idngram<N>(), freq(0) { }
90 CSIM_IdngramFreq& operator=(const CSIM_IdngramFreq& r){
91 for (int i = 0; i < N; ++i)
92 this->ids[i] = r.ids[i];
96 bool read(FILE *fp, size_t& start_offset, size_t last_offset){
97 if (start_offset + size() <= last_offset) {
98 fseek(fp, start_offset, SEEK_SET);
99 if (fread(this->ids, sizeof(TSIMWordId), N,
101 fread(&freq, sizeof(unsigned int), 1, fp) == 1) {
102 start_offset += size();
110 size_t size() { return N * sizeof(TSIMWordId) + sizeof(unsigned int); }