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Make hash value const

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This commit is contained in:
Jennifer Liu 2018-07-25 16:54:08 -07:00
parent 7f3f70f766
commit f5407e398a
1 changed files with 5 additions and 5 deletions
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10
contrib/experimental_dict_builders/fastCover/fastCover.c
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@ -138,7 +138,7 @@ static FASTCOVER_segment_t FASTCOVER_selectSegment(const FASTCOVER_ctx_t *ctx,
*/ */
while (activeSegment.end < end) { while (activeSegment.end < end) {
/* Get hash value of current dmer */ /* Get hash value of current dmer */
size_t index = FASTCOVER_hash8PtrToIndex(ctx->samples + activeSegment.end, parameters.f); const size_t index = FASTCOVER_hash8PtrToIndex(ctx->samples + activeSegment.end, parameters.f);
/* Add frequency of this index to score */ /* Add frequency of this index to score */
activeSegment.score += freqs[index]; activeSegment.score += freqs[index];
/* Increment end of segment */ /* Increment end of segment */
@ -146,7 +146,7 @@ static FASTCOVER_segment_t FASTCOVER_selectSegment(const FASTCOVER_ctx_t *ctx,
/* If the window is now too large, drop the first position */ /* If the window is now too large, drop the first position */
if (activeSegment.end - activeSegment.begin == dmersInK + 1) { if (activeSegment.end - activeSegment.begin == dmersInK + 1) {
/* Get hash value of the dmer to be eliminated from active segment */ /* Get hash value of the dmer to be eliminated from active segment */
size_t delIndex = FASTCOVER_hash8PtrToIndex(ctx->samples + activeSegment.begin, parameters.f); const size_t delIndex = FASTCOVER_hash8PtrToIndex(ctx->samples + activeSegment.begin, parameters.f);
/* Subtract frequency of this index from score */ /* Subtract frequency of this index from score */
activeSegment.score -= freqs[delIndex]; activeSegment.score -= freqs[delIndex];
/* Increment start of segment */ /* Increment start of segment */
@ -163,7 +163,7 @@ static FASTCOVER_segment_t FASTCOVER_selectSegment(const FASTCOVER_ctx_t *ctx,
U32 newEnd = bestSegment.begin; U32 newEnd = bestSegment.begin;
U32 pos; U32 pos;
for (pos = bestSegment.begin; pos != bestSegment.end; ++pos) { for (pos = bestSegment.begin; pos != bestSegment.end; ++pos) {
size_t index = FASTCOVER_hash8PtrToIndex(ctx->samples + pos, parameters.f); const size_t index = FASTCOVER_hash8PtrToIndex(ctx->samples + pos, parameters.f);
U32 freq = freqs[index]; U32 freq = freqs[index];
if (freq != 0) { if (freq != 0) {
newBegin = MIN(newBegin, pos); newBegin = MIN(newBegin, pos);
@ -177,7 +177,7 @@ static FASTCOVER_segment_t FASTCOVER_selectSegment(const FASTCOVER_ctx_t *ctx,
/* Half the frequency of hash value of each dmer covered by the chosen segment. */ /* Half the frequency of hash value of each dmer covered by the chosen segment. */
U32 pos; U32 pos;
for (pos = bestSegment.begin; pos != bestSegment.end; ++pos) { for (pos = bestSegment.begin; pos != bestSegment.end; ++pos) {
size_t i = FASTCOVER_hash8PtrToIndex(ctx->samples + pos, parameters.f); const size_t i = FASTCOVER_hash8PtrToIndex(ctx->samples + pos, parameters.f);
freqs[i] = freqs[i]/2; freqs[i] = freqs[i]/2;
} }
} }
@ -244,7 +244,7 @@ static void FASTCOVER_getFrequency(U32 *freqs, unsigned f, FASTCOVER_ctx_t *ctx)
size_t currSampleEnd = ctx->offsets[i+1]; size_t currSampleEnd = ctx->offsets[i+1];
start = currSampleStart; start = currSampleStart;
while (start + f < currSampleEnd) { while (start + f < currSampleEnd) {
size_t dmerIndex = FASTCOVER_hash8PtrToIndex(ctx->samples + start, f); const size_t dmerIndex = FASTCOVER_hash8PtrToIndex(ctx->samples + start, f);
/* if no dmer with same hash value has been seen in current sample */ /* if no dmer with same hash value has been seen in current sample */
if (inCurrSample[dmerIndex] == 0) { if (inCurrSample[dmerIndex] == 0) {
inCurrSample[dmerIndex]++; inCurrSample[dmerIndex]++;