[PATCH 26/29] lib: zstd: Avoid comma separated statements
From: Joe Perches
Date: Tue Aug 25 2020 - 00:57:46 EST
Use semicolons and braces.
Signed-off-by: Joe Perches <joe@xxxxxxxxxxx>
---
lib/zstd/compress.c | 120 ++++++++++++++++++++++++++--------------
lib/zstd/fse_compress.c | 24 +++++---
lib/zstd/huf_compress.c | 6 +-
3 files changed, 100 insertions(+), 50 deletions(-)
diff --git a/lib/zstd/compress.c b/lib/zstd/compress.c
index b080264ed3ad..d8587e458665 100644
--- a/lib/zstd/compress.c
+++ b/lib/zstd/compress.c
@@ -629,12 +629,17 @@ ZSTD_STATIC size_t ZSTD_compressSequences_internal(ZSTD_CCtx *zc, void *dst, siz
/* Sequences Header */
if ((oend - op) < 3 /*max nbSeq Size*/ + 1 /*seqHead */)
return ERROR(dstSize_tooSmall);
- if (nbSeq < 0x7F)
+ if (nbSeq < 0x7F) {
*op++ = (BYTE)nbSeq;
- else if (nbSeq < LONGNBSEQ)
- op[0] = (BYTE)((nbSeq >> 8) + 0x80), op[1] = (BYTE)nbSeq, op += 2;
- else
- op[0] = 0xFF, ZSTD_writeLE16(op + 1, (U16)(nbSeq - LONGNBSEQ)), op += 3;
+ } else if (nbSeq < LONGNBSEQ) {
+ op[0] = (BYTE)((nbSeq >> 8) + 0x80);
+ op[1] = (BYTE)nbSeq;
+ op += 2;
+ } else {
+ op[0] = 0xFF;
+ ZSTD_writeLE16(op + 1, (U16)(nbSeq - LONGNBSEQ));
+ op += 3;
+ }
if (nbSeq == 0)
return op - ostart;
@@ -1025,10 +1030,13 @@ void ZSTD_compressBlock_fast_generic(ZSTD_CCtx *cctx, const void *src, size_t sr
ip += (ip == lowest);
{
U32 const maxRep = (U32)(ip - lowest);
- if (offset_2 > maxRep)
- offsetSaved = offset_2, offset_2 = 0;
- if (offset_1 > maxRep)
- offsetSaved = offset_1, offset_1 = 0;
+ if (offset_2 > maxRep) {
+ offsetSaved = offset_2;
+ offset_2 = 0;
+ }
+ if (offset_1 > maxRep) {
+ offsetSaved = offset_1; offset_1 = 0;
+ }
}
/* Main Search Loop */
@@ -1273,10 +1281,14 @@ void ZSTD_compressBlock_doubleFast_generic(ZSTD_CCtx *cctx, const void *src, siz
ip += (ip == lowest);
{
U32 const maxRep = (U32)(ip - lowest);
- if (offset_2 > maxRep)
- offsetSaved = offset_2, offset_2 = 0;
- if (offset_1 > maxRep)
- offsetSaved = offset_1, offset_1 = 0;
+ if (offset_2 > maxRep) {
+ offsetSaved = offset_2;
+ offset_2 = 0;
+ }
+ if (offset_1 > maxRep) {
+ offsetSaved = offset_1;
+ offset_1 = 0;
+ }
}
/* Main Search Loop */
@@ -1686,8 +1698,10 @@ static size_t ZSTD_insertBtAndFindBestMatch(ZSTD_CCtx *zc, const BYTE *const ip,
if (matchLength > bestLength) {
if (matchLength > matchEndIdx - matchIndex)
matchEndIdx = matchIndex + (U32)matchLength;
- if ((4 * (int)(matchLength - bestLength)) > (int)(ZSTD_highbit32(curr - matchIndex + 1) - ZSTD_highbit32((U32)offsetPtr[0] + 1)))
- bestLength = matchLength, *offsetPtr = ZSTD_REP_MOVE + curr - matchIndex;
+ if ((4 * (int)(matchLength - bestLength)) > (int)(ZSTD_highbit32(curr - matchIndex + 1) - ZSTD_highbit32((U32)offsetPtr[0] + 1))) {
+ bestLength = matchLength;
+ *offsetPtr = ZSTD_REP_MOVE + curr - matchIndex;
+ }
if (ip + matchLength == iend) /* equal : no way to know if inf or sup */
break; /* drop, to guarantee consistency (miss a little bit of compression) */
}
@@ -1916,10 +1930,14 @@ void ZSTD_compressBlock_lazy_generic(ZSTD_CCtx *ctx, const void *src, size_t src
ctx->nextToUpdate3 = ctx->nextToUpdate;
{
U32 const maxRep = (U32)(ip - base);
- if (offset_2 > maxRep)
- savedOffset = offset_2, offset_2 = 0;
- if (offset_1 > maxRep)
- savedOffset = offset_1, offset_1 = 0;
+ if (offset_2 > maxRep) {
+ savedOffset = offset_2;
+ offset_2 = 0;
+ }
+ if (offset_1 > maxRep) {
+ savedOffset = offset_1;
+ offset_1 = 0;
+ }
}
/* Match Loop */
@@ -1940,8 +1958,11 @@ void ZSTD_compressBlock_lazy_generic(ZSTD_CCtx *ctx, const void *src, size_t src
{
size_t offsetFound = 99999999;
size_t const ml2 = searchMax(ctx, ip, iend, &offsetFound, maxSearches, mls);
- if (ml2 > matchLength)
- matchLength = ml2, start = ip, offset = offsetFound;
+ if (ml2 > matchLength) {
+ matchLength = ml2;
+ start = ip;
+ offset = offsetFound;
+ }
}
if (matchLength < EQUAL_READ32) {
@@ -1957,8 +1978,11 @@ void ZSTD_compressBlock_lazy_generic(ZSTD_CCtx *ctx, const void *src, size_t src
size_t const mlRep = ZSTD_count(ip + EQUAL_READ32, ip + EQUAL_READ32 - offset_1, iend) + EQUAL_READ32;
int const gain2 = (int)(mlRep * 3);
int const gain1 = (int)(matchLength * 3 - ZSTD_highbit32((U32)offset + 1) + 1);
- if ((mlRep >= EQUAL_READ32) && (gain2 > gain1))
- matchLength = mlRep, offset = 0, start = ip;
+ if ((mlRep >= EQUAL_READ32) && (gain2 > gain1)) {
+ matchLength = mlRep;
+ offset = 0;
+ start = ip;
+ }
}
{
size_t offset2 = 99999999;
@@ -1966,7 +1990,7 @@ void ZSTD_compressBlock_lazy_generic(ZSTD_CCtx *ctx, const void *src, size_t src
int const gain2 = (int)(ml2 * 4 - ZSTD_highbit32((U32)offset2 + 1)); /* raw approx */
int const gain1 = (int)(matchLength * 4 - ZSTD_highbit32((U32)offset + 1) + 4);
if ((ml2 >= EQUAL_READ32) && (gain2 > gain1)) {
- matchLength = ml2, offset = offset2, start = ip;
+ matchLength = ml2, offset = offset2; start = ip;
continue; /* search a better one */
}
}
@@ -1978,8 +2002,11 @@ void ZSTD_compressBlock_lazy_generic(ZSTD_CCtx *ctx, const void *src, size_t src
size_t const ml2 = ZSTD_count(ip + EQUAL_READ32, ip + EQUAL_READ32 - offset_1, iend) + EQUAL_READ32;
int const gain2 = (int)(ml2 * 4);
int const gain1 = (int)(matchLength * 4 - ZSTD_highbit32((U32)offset + 1) + 1);
- if ((ml2 >= EQUAL_READ32) && (gain2 > gain1))
- matchLength = ml2, offset = 0, start = ip;
+ if ((ml2 >= EQUAL_READ32) && (gain2 > gain1)) {
+ matchLength = ml2;
+ offset = 0;
+ start = ip;
+ }
}
{
size_t offset2 = 99999999;
@@ -1987,7 +2014,7 @@ void ZSTD_compressBlock_lazy_generic(ZSTD_CCtx *ctx, const void *src, size_t src
int const gain2 = (int)(ml2 * 4 - ZSTD_highbit32((U32)offset2 + 1)); /* raw approx */
int const gain1 = (int)(matchLength * 4 - ZSTD_highbit32((U32)offset + 1) + 7);
if ((ml2 >= EQUAL_READ32) && (gain2 > gain1)) {
- matchLength = ml2, offset = offset2, start = ip;
+ matchLength = ml2, offset = offset2; start = ip;
continue;
}
}
@@ -2110,8 +2137,11 @@ void ZSTD_compressBlock_lazy_extDict_generic(ZSTD_CCtx *ctx, const void *src, si
{
size_t offsetFound = 99999999;
size_t const ml2 = searchMax(ctx, ip, iend, &offsetFound, maxSearches, mls);
- if (ml2 > matchLength)
- matchLength = ml2, start = ip, offset = offsetFound;
+ if (ml2 > matchLength) {
+ matchLength = ml2;
+ start = ip;
+ offset = offsetFound;
+ }
}
if (matchLength < EQUAL_READ32) {
@@ -2138,8 +2168,11 @@ void ZSTD_compressBlock_lazy_extDict_generic(ZSTD_CCtx *ctx, const void *src, si
EQUAL_READ32;
int const gain2 = (int)(repLength * 3);
int const gain1 = (int)(matchLength * 3 - ZSTD_highbit32((U32)offset + 1) + 1);
- if ((repLength >= EQUAL_READ32) && (gain2 > gain1))
- matchLength = repLength, offset = 0, start = ip;
+ if ((repLength >= EQUAL_READ32) && (gain2 > gain1)) {
+ matchLength = repLength;
+ offset = 0;
+ start = ip;
+ }
}
}
@@ -2150,7 +2183,7 @@ void ZSTD_compressBlock_lazy_extDict_generic(ZSTD_CCtx *ctx, const void *src, si
int const gain2 = (int)(ml2 * 4 - ZSTD_highbit32((U32)offset2 + 1)); /* raw approx */
int const gain1 = (int)(matchLength * 4 - ZSTD_highbit32((U32)offset + 1) + 4);
if ((ml2 >= EQUAL_READ32) && (gain2 > gain1)) {
- matchLength = ml2, offset = offset2, start = ip;
+ matchLength = ml2, offset = offset2; start = ip;
continue; /* search a better one */
}
}
@@ -2173,8 +2206,11 @@ void ZSTD_compressBlock_lazy_extDict_generic(ZSTD_CCtx *ctx, const void *src, si
EQUAL_READ32;
int gain2 = (int)(repLength * 4);
int gain1 = (int)(matchLength * 4 - ZSTD_highbit32((U32)offset + 1) + 1);
- if ((repLength >= EQUAL_READ32) && (gain2 > gain1))
- matchLength = repLength, offset = 0, start = ip;
+ if ((repLength >= EQUAL_READ32) && (gain2 > gain1)) {
+ matchLength = repLength;
+ offset = 0;
+ start = ip;
+ }
}
}
@@ -2185,7 +2221,7 @@ void ZSTD_compressBlock_lazy_extDict_generic(ZSTD_CCtx *ctx, const void *src, si
int const gain2 = (int)(ml2 * 4 - ZSTD_highbit32((U32)offset2 + 1)); /* raw approx */
int const gain1 = (int)(matchLength * 4 - ZSTD_highbit32((U32)offset + 1) + 7);
if ((ml2 >= EQUAL_READ32) && (gain2 > gain1)) {
- matchLength = ml2, offset = offset2, start = ip;
+ matchLength = ml2, offset = offset2; start = ip;
continue;
}
}
@@ -3159,10 +3195,12 @@ static size_t ZSTD_compressStream_generic(ZSTD_CStream *zcs, void *dst, size_t *
size_t cSize;
size_t const iSize = zcs->inBuffPos - zcs->inToCompress;
size_t oSize = oend - op;
- if (oSize >= ZSTD_compressBound(iSize))
+ if (oSize >= ZSTD_compressBound(iSize)) {
cDst = op; /* compress directly into output buffer (avoid flush stage) */
- else
- cDst = zcs->outBuff, oSize = zcs->outBuffSize;
+ } else {
+ cDst = zcs->outBuff;
+ oSize = zcs->outBuffSize;
+ }
cSize = (flush == zsf_end) ? ZSTD_compressEnd(zcs->cctx, cDst, oSize, zcs->inBuff + zcs->inToCompress, iSize)
: ZSTD_compressContinue(zcs->cctx, cDst, oSize, zcs->inBuff + zcs->inToCompress, iSize);
if (ZSTD_isError(cSize))
@@ -3171,8 +3209,10 @@ static size_t ZSTD_compressStream_generic(ZSTD_CStream *zcs, void *dst, size_t *
zcs->frameEnded = 1;
/* prepare next block */
zcs->inBuffTarget = zcs->inBuffPos + zcs->blockSize;
- if (zcs->inBuffTarget > zcs->inBuffSize)
- zcs->inBuffPos = 0, zcs->inBuffTarget = zcs->blockSize; /* note : inBuffSize >= blockSize */
+ if (zcs->inBuffTarget > zcs->inBuffSize) {
+ zcs->inBuffPos = 0;
+ zcs->inBuffTarget = zcs->blockSize;
+ } /* note : inBuffSize >= blockSize */
zcs->inToCompress = zcs->inBuffPos;
if (cDst == op) {
op += cSize;
diff --git a/lib/zstd/fse_compress.c b/lib/zstd/fse_compress.c
index ef3d1741d532..99a21c35d0ac 100644
--- a/lib/zstd/fse_compress.c
+++ b/lib/zstd/fse_compress.c
@@ -271,8 +271,10 @@ static size_t FSE_writeNCount_generic(void *header, size_t headerBufferSize, con
previous0 = (count == 1);
if (remaining < 1)
return ERROR(GENERIC);
- while (remaining < threshold)
- nbBits--, threshold >>= 1;
+ while (remaining < threshold) {
+ nbBits--;
+ threshold >>= 1;
+ }
}
if (bitCount > 16) {
if ((!writeIsSafe) && (out > oend - 2))
@@ -569,8 +571,10 @@ static size_t FSE_normalizeM2(short *norm, U32 tableLog, const unsigned *count,
find max, then give all remaining points to max */
U32 maxV = 0, maxC = 0;
for (s = 0; s <= maxSymbolValue; s++)
- if (count[s] > maxC)
- maxV = s, maxC = count[s];
+ if (count[s] > maxC) {
+ maxV = s;
+ maxC = count[s];
+ }
norm[maxV] += (short)ToDistribute;
return 0;
}
@@ -578,8 +582,10 @@ static size_t FSE_normalizeM2(short *norm, U32 tableLog, const unsigned *count,
if (total == 0) {
/* all of the symbols were low enough for the lowOne or lowThreshold */
for (s = 0; ToDistribute > 0; s = (s + 1) % (maxSymbolValue + 1))
- if (norm[s] > 0)
- ToDistribute--, norm[s]++;
+ if (norm[s] > 0) {
+ ToDistribute--;
+ norm[s]++;
+ }
return 0;
}
@@ -644,8 +650,10 @@ size_t FSE_normalizeCount(short *normalizedCounter, unsigned tableLog, const uns
U64 restToBeat = vStep * rtbTable[proba];
proba += (count[s] * step) - ((U64)proba << scale) > restToBeat;
}
- if (proba > largestP)
- largestP = proba, largest = s;
+ if (proba > largestP) {
+ largestP = proba;
+ largest = s;
+ }
normalizedCounter[s] = proba;
stillToDistribute -= proba;
}
diff --git a/lib/zstd/huf_compress.c b/lib/zstd/huf_compress.c
index 08b4ae80aed4..ca12ab400086 100644
--- a/lib/zstd/huf_compress.c
+++ b/lib/zstd/huf_compress.c
@@ -404,8 +404,10 @@ static void HUF_sort(nodeElt *huffNode, const U32 *count, U32 maxSymbolValue)
U32 const c = count[n];
U32 const r = BIT_highbit32(c + 1) + 1;
U32 pos = rank[r].curr++;
- while ((pos > rank[r].base) && (c > huffNode[pos - 1].count))
- huffNode[pos] = huffNode[pos - 1], pos--;
+ while ((pos > rank[r].base) && (c > huffNode[pos - 1].count)) {
+ huffNode[pos] = huffNode[pos - 1];
+ pos--;
+ }
huffNode[pos].count = c;
huffNode[pos].byte = (BYTE)n;
}
--
2.26.0