diff --git a/src/bddata.cpp b/src/bddata.cpp
index 84a147c3..92c69073 100644
--- a/src/bddata.cpp
+++ b/src/bddata.cpp
@@ -119,7 +119,7 @@ void BDData::loadBDFile(const std::string& filename)
 
          firstPos += g_SpacerBeforeAfter; // ??? ask Kai
          secondPos += g_SpacerBeforeAfter;
-         if (firstChrName == secondChrName && secondChrName != "" && abs(firstPos - secondPos) < 500) {
+         if (firstChrName == secondChrName && secondChrName != "" && abs((long long int) firstPos - (long long int) secondPos) < 500) {
             continue;
          }
          if ( firstChrName!="" && secondChrName!="") {
@@ -180,16 +180,16 @@ void SortRPByChrPos(std::vector <RP_READ> & Reads_RP) { // no interchromosome RP
 bool RecipicalOverlap(RP_READ & first, RP_READ & second)
 {
    int distance = 1000;
-   if (abs(first.PosA - first.PosA1) > distance) {
+   if (abs((long long int) first.PosA - (long long int) first.PosA1) > distance) {
       return false;
    }
-   if (abs(first.PosB - first.PosB1) > distance) {
+   if (abs((long long int) first.PosB - (long long int) first.PosB1) > distance) {
       return false;
    }
-   if (abs(second.PosA - second.PosA1) > distance) {
+   if (abs((long long int) second.PosA - (long long int) second.PosA1) > distance) {
       return false;
    }
-   if (abs(second.PosB - second.PosB1) > distance) {
+   if (abs((long long int) second.PosB - (long long int) second.PosB1) > distance) {
       return false;
    }
    float cutoff = 0.9;
@@ -424,7 +424,7 @@ void ModifyRP(std::vector <RP_READ> & Reads_RP)
          Reads_RP[first].PosB = Reads_RP[first].PosB + Reads_RP[first].ReadLength;
          Reads_RP[first].PosB1 = Reads_RP[first].PosB1 + Reads_RP[first].ReadLength;
       }
-      if (Reads_RP[first].ChrNameA == Reads_RP[first].ChrNameB && abs(Reads_RP[first].PosA - Reads_RP[first].PosB) < 500) {
+      if (Reads_RP[first].ChrNameA == Reads_RP[first].ChrNameB && abs((long long int) Reads_RP[first].PosA - (long long int) Reads_RP[first].PosB) < 500) {
          Reads_RP[first].Visited = true;
       }
       //std::cout << "Final: " << Reads_RP[first].ChrNameA << " " << Reads_RP[first].DA << " " << Reads_RP[first].PosA << "\t" << Reads_RP[first].ChrNameB << " " << Reads_RP[first].DB << " " << Reads_RP[first].PosB << std::endl;
diff --git a/src/genotyping.cpp b/src/genotyping.cpp
index 04decbbd..b4f386b7 100644
--- a/src/genotyping.cpp
+++ b/src/genotyping.cpp
@@ -124,7 +124,7 @@ void doGenotyping (ControlState & CurrentState, UserDefinedSettings* userSetting
    // step 4 for each variant, do genotyping
    for (unsigned SV_index =0; SV_index < AllSV4Genotyping.size(); SV_index++) {
       // step 4.1 if type == DEL, GenotypeDel
-      if (AllSV4Genotyping[SV_index].ChrA == AllSV4Genotyping[SV_index].ChrB && abs(AllSV4Genotyping[SV_index].PosA - AllSV4Genotyping[SV_index].PosB) < SV_Genotype_Cutoff) {
+     if (AllSV4Genotyping[SV_index].ChrA == AllSV4Genotyping[SV_index].ChrB && abs((long long int) AllSV4Genotyping[SV_index].PosA - (long long int) AllSV4Genotyping[SV_index].PosB) < SV_Genotype_Cutoff) {
          std::cout << "Skip One SV " << OneSV.Type << " " << OneSV.ChrA << " " << OneSV.PosA << " "
                    << OneSV.CI_A << " " << OneSV.ChrB << " " << OneSV.PosB << " "
                    << OneSV.CI_B << std::endl;
diff --git a/src/pindel.cpp b/src/pindel.cpp
index 337b535e..3d355263 100644
--- a/src/pindel.cpp
+++ b/src/pindel.cpp
@@ -1554,7 +1554,7 @@ void MergeInterChr(ControlState& currentState, UserDefinedSettings *usersettings
             continue;
          }
          if (All[index_a].FirstChrName == All[index_b].FirstChrName && All[index_a].SecondChrName == All[index_b].SecondChrName) {
-            if (abs(All[index_a].FirstPos - All[index_b].FirstPos) < 10 && abs(All[index_a].SecondPos - All[index_b].SecondPos) < 10 && All[index_a].NumSupport + All[index_b].NumSupport >= cutoff) {
+	   if (abs((long long int) All[index_a].FirstPos - (long long int) All[index_b].FirstPos) < 10 && abs((long long int) (All[index_a].SecondPos - All[index_b].SecondPos)) < 10 && All[index_a].NumSupport + All[index_b].NumSupport >= cutoff) {
 
                INToutputfile << "chr\t" << All[index_a].FirstChrName << "\tpos\t" << unsigned((All[index_a].FirstPos + All[index_b].FirstPos) / 2) << "\tchr\t" << All[index_a].SecondChrName << "\tpos\t"
                              << unsigned((All[index_a].SecondPos + All[index_b].SecondPos) / 2) << "\tseq\t" << All[index_a].InsertedSequence << "\tsupport\t" << All[index_a].NumSupport + All[index_b].NumSupport << "\tINFOR\t"