diff --git a/niftyreg_build_version.txt b/niftyreg_build_version.txt
index c1d1ffbb..81e5b7ce 100644
--- a/niftyreg_build_version.txt
+++ b/niftyreg_build_version.txt
@@ -1 +1 @@
-266
+267
diff --git a/reg-apps/reg_aladin.cpp b/reg-apps/reg_aladin.cpp
index c9c82ec5..26413b68 100755
--- a/reg-apps/reg_aladin.cpp
+++ b/reg-apps/reg_aladin.cpp
@@ -156,7 +156,7 @@ int main(int argc, char **argv) {
     int rigidFlag = 1;
     int blockStepSize = 1;
     int blockPercentage = 50;
-    float inlierLts = 50.0f;
+    int inlierLts = 50;
     int alignCentre = 1;
     int alignCentreOfMass = 0;
     int interpolation = 1;
@@ -255,16 +255,16 @@ int main(int argc, char **argv) {
             alignCentre = 0;
             alignCentreOfMass = 2;
         } else if (strcmp(argv[i], "-%v") == 0 || strcmp(argv[i], "-pv") == 0 || strcmp(argv[i], "--pv") == 0) {
-            float value = atof(argv[++i]);
-            if (value < 0.f || value>100.f) {
-                reg_print_msg_error("The variance argument is expected to be between 0 and 100");
+            int value = atoi(argv[++i]);
+            if (value < 1 || value>100) {
+                reg_print_msg_error("The variance argument is expected to be an integer between 1 and 100");
                 return EXIT_FAILURE;
             }
             blockPercentage = value;
         } else if (strcmp(argv[i], "-%i") == 0 || strcmp(argv[i], "-pi") == 0 || strcmp(argv[i], "--pi") == 0) {
-            float value = atof(argv[++i]);
-            if (value < 0.f || value>100.f) {
-                reg_print_msg_error("The inlier argument is expected to be between 0 and 100");
+            int value = atoi(argv[++i]);
+            if (value < 1 || value>100) {
+                reg_print_msg_error("The inlier argument is expected to be an integer between 1 and 100");
                 return EXIT_FAILURE;
             }
             inlierLts = value;
@@ -273,17 +273,17 @@ int main(int argc, char **argv) {
         } else if (strcmp(argv[i], "-interp") == 0 || strcmp(argv[i], "--interp") == 0) {
             interpolation = atoi(argv[++i]);
         } else if (strcmp(argv[i], "-refLowThr") == 0 || strcmp(argv[i], "--refLowThr") == 0) {
-            referenceLowerThr = atof(argv[++i]);
+            referenceLowerThr = std::stof(argv[++i]);
         } else if (strcmp(argv[i], "-refUpThr") == 0 || strcmp(argv[i], "--refUpThr") == 0) {
-            referenceUpperThr = atof(argv[++i]);
+            referenceUpperThr = std::stof(argv[++i]);
         } else if (strcmp(argv[i], "-floLowThr") == 0 || strcmp(argv[i], "--floLowThr") == 0) {
-            floatingLowerThr = atof(argv[++i]);
+            floatingLowerThr = std::stof(argv[++i]);
         } else if (strcmp(argv[i], "-floUpThr") == 0 || strcmp(argv[i], "--floUpThr") == 0) {
-            floatingUpperThr = atof(argv[++i]);
+            floatingUpperThr = std::stof(argv[++i]);
         }
 
         else if (strcmp(argv[i], "-pad") == 0 || strcmp(argv[i], "--pad") == 0) {
-            paddingValue = atof(argv[++i]);
+            paddingValue = std::stof(argv[++i]);
         } else if (strcmp(argv[i], "-iso") == 0 || strcmp(argv[i], "--iso") == 0) {
             iso = true;
         } else if (strcmp(argv[i], "-voff") == 0 || strcmp(argv[i], "--voff") == 0) {
@@ -495,9 +495,9 @@ int main(int argc, char **argv) {
 #endif
         time_t end;
         time(&end);
-        int minutes = (int)floorf((end - start) / 60.0f);
-        int seconds = (int)(end - start - 60 * minutes);
-        sprintf(text, "Registration performed in %i min %i sec", minutes, seconds);
+        float minutes = floorf((end - start) / 60.0f);
+        float seconds = (end - start - 60 * minutes);
+        sprintf(text, "Registration performed in %i min %i sec", (int)minutes, (int)seconds);
         reg_print_info((argv[0]), text);
         reg_print_info((argv[0]), "Have a good day !");
 #ifdef NDEBUG
diff --git a/reg-apps/reg_f3d.cpp b/reg-apps/reg_f3d.cpp
index 30489b3c..460f26ec 100755
--- a/reg-apps/reg_f3d.cpp
+++ b/reg-apps/reg_f3d.cpp
@@ -319,6 +319,9 @@ int main(int argc, char **argv) {
     int refBinNumber = 0;
     int floBinNumber = 0;
 
+    // mat44 to store the affine matrix if needed
+    mat44 affineMatrix;
+
     /* read the input parameter */
     for (int i = 1; i < argc; i++) {
         if (strcmp(argv[i], "-ref") == 0 || strcmp(argv[i], "-target") == 0 ||
@@ -341,7 +344,6 @@ int main(int argc, char **argv) {
                 return EXIT_FAILURE;
             }
             // Read the affine matrix
-            mat44 affineMatrix;
             reg_tool_ReadAffineFile(&affineMatrix, affineTransformationName);
             // Send the transformation to the registration object
             reg->SetAffineTransformation(&affineMatrix);
@@ -748,7 +750,7 @@ int main(int argc, char **argv) {
         time_t end;
         time(&end);
         int minutes = (int)floorf((end - start) / 60.0f);
-        int seconds = (int)(end - start - 60 * minutes);
+        int seconds = ((int)(end - start) - 60 * minutes);
         text = stringFormat("Registration performed in %i min %i sec", minutes, seconds);
         reg_print_info((argv[0]), text.c_str());
         reg_print_info((argv[0]), "Have a good day !");
diff --git a/reg-lib/cpu/_reg_optimiser.cpp b/reg-lib/cpu/_reg_optimiser.cpp
index 30b8a069..3acbb846 100644
--- a/reg-lib/cpu/_reg_optimiser.cpp
+++ b/reg-lib/cpu/_reg_optimiser.cpp
@@ -69,7 +69,7 @@ void reg_optimiser<T>::Initialise(size_t nvox,
     this->maxIterationNumber = maxIt;
     this->currentIterationNumber = startIt;
     this->currentDof = cppData;
-    if (this->bestDof) free(this->bestDof);
+    if (this->bestDof != nullptr) free(this->bestDof);
     this->bestDof = (T*)malloc(this->dofNumber * sizeof(T));
     memcpy(this->bestDof, this->currentDof, this->dofNumber * sizeof(T));
     if (gradData)
@@ -80,7 +80,7 @@ void reg_optimiser<T>::Initialise(size_t nvox,
     if (cppDataBw) {
         this->currentDofBw = cppDataBw;
         this->isBackwards = true;
-        if (this->bestDofBw) free(this->bestDofBw);
+        if (this->bestDofBw != nullptr) free(this->bestDofBw);
         this->bestDofBw = (T*)malloc(this->dofNumberBw * sizeof(T));
         memcpy(this->bestDofBw, this->currentDofBw, this->dofNumberBw * sizeof(T));
     }