Use 'false' instead of 0 for booleans.

Applications/Utils/MeshEdit/CreateBoundaryConditionsAlongPolylines.cpp

@@ -127,7 +127,7 @@ int main (int argc, char* argv[])
         ' ',
         "0.1");
     TCLAP::ValueArg<bool> gml_arg("", "gml",
-        "if switched on write found nodes to file in gml format", false, 0, "bool");
+        "if switched on write found nodes to file in gml format", false, false, "bool");
     cmd.add(gml_arg);
 
     TCLAP::ValueArg<std::string> output_base_fname("o", "output-base-file-name",

Applications/Utils/MeshEdit/ResetPropertiesInPolygonalRegion.cpp

@@ -141,7 +141,7 @@ int main (int argc, char* argv[])
         "new property value (data type int)", false, 0, "number");
     cmd.add(int_property_arg);
     TCLAP::ValueArg<bool> bool_property_arg("b", "bool-property-value",
-        "new property value (data type bool)", false, 0, "boolean value");
+        "new property value (data type bool)", false, false, "boolean value");
     cmd.add(bool_property_arg);
     TCLAP::ValueArg<std::string> property_name_arg("n", "property-name",
         "name of property in the mesh", false, "MaterialIDs", "string");

GeoLib/IO/AsciiRasterInterface.cpp

@@ -181,7 +181,7 @@ bool AsciiRasterInterface::readSurferHeader(
         else
         {
             ERR("Error in readSurferHeader() - Anisotropic cellsize detected.");
-            return 0;
+            return false;
         }
         header.no_data = min-1;
         in >> min >> max;