fix compile errors in macOS azure pipeline

Author: jaebeom-kim

src/commons/FileMerger.cpp

@@ -120,7 +120,8 @@ void FileMerger::mergeTargetFiles() {
         // cout << os * sizeOfSplit << endl;
     }
     offsetList[splitNum] = UINT64_MAX;
-    DiffIdxSplit splitList[splitNum] = {};
+    DiffIdxSplit splitList[splitNum];
+    memset(splitList, 0, sizeof(DiffIdxSplit) * splitNum);
     int splitListIdx = 1;
 
     // get the first k-mer to write

src/commons/IndexCreator.cpp

@@ -533,7 +533,8 @@ void IndexCreator::writeTargetFilesAndSplits(TargetKmer * kmerBuffer,
 
     // Make splits
     FILE * diffIdxSplitFile = fopen(splitFileName.c_str(), "wb");
-    DiffIdxSplit splitList[par.splitNum] = {};
+    DiffIdxSplit splitList[par.splitNum];
+    memset(splitList, 0, sizeof(DiffIdxSplit) * par.splitNum);
     size_t splitWidth = uniqKmerCnt / par.splitNum;
     size_t remainder = uniqKmerCnt % par.splitNum;
     size_t splitCnt = 1;

src/commons/IndexCreator.h

@@ -54,6 +54,8 @@ struct Accession {
 
         if (order != a.order)
             return order < a.order;
+        
+        return false;
     }
 
     static bool compare(const Accession & a, const Accession & b) {

src/commons/SeqIterator.cpp

@@ -656,7 +656,6 @@ void SeqIterator::devideToCdsAndNonCds(const char *maskedSeq,
     for (size_t i = 0; i < cdsInfo.size(); i++) {
         size_t locNum = cdsInfo[i].loc.size();
         int currStartCodonPos = 0;
-        int extend = 0;
         for (size_t j = 0; j < locNum; j++) {
             // Extend 21 bases to both sides for k-mer from CDS boudaries
             size_t begin = cdsInfo[i].loc[j].first - 1;
@@ -666,15 +665,13 @@ void SeqIterator::devideToCdsAndNonCds(const char *maskedSeq,
                 while (k < 7 && begin >= 3) {
                     begin -= 3;
                     currStartCodonPos += 3;
-                    extend += 3;
                     k++;
                 }
             }
             if (j == locNum - 1) {
                 int k = 0;
                 while (k < 7 && end + 3 < seqLen) {
                     end += 3;
-                    extend += 3;
                     k++;
                 }
             }