Fixed operator++. Added CreateXXX for vector types.

include/flatbuffers/flatbuffers.h

@@ -288,7 +288,7 @@ public:
   }
 
   VectorIterator operator++(int) {
-    VectorIterator temp(data_);
+    VectorIterator temp(data_,0);
     data_ += IndirectHelper<T>::element_stride;
     return temp;
   }

src/idl_gen_cpp.cpp

@@ -719,6 +719,83 @@ class CppGenerator : public BaseGenerator {
       }
     }
     code += "  return builder_.Finish();\n}\n\n";
+
+    //Generate a CreateX function with vector types as parameters
+    std::vector<FieldDef*>vect_pars_ids;
+    code += "inline flatbuffers::Offset<" + struct_def.name + "> Create";
+    code += struct_def.name;
+    code += "(flatbuffers::FlatBufferBuilder &_fbb";
+    for (auto it = struct_def.fields.vec.begin();
+    it != struct_def.fields.vec.end(); ++it) {
+      auto &field = **it;
+      if (!field.deprecated) {
+        if (field.value.type.base_type == BASE_TYPE_STRING) {
+          vect_pars_ids.push_back(*it);
+          code += ",\n   const char *";
+          code += field.name + " = \"\"";
+        }
+        else if (field.value.type.base_type == BASE_TYPE_VECTOR) {
+          vect_pars_ids.push_back(*it);
+          code += ",\n   std::vector<" + GenTypeWire(field.value.type.VectorType(), "", false) + "> " + field.name;
+          code += " = std::vector<" + GenTypeWire(field.value.type.VectorType(), "", false) + ">()";
+        }
+        else {
+          code += ",\n   " + GenTypeWire(field.value.type, " ", true);
+          code += field.name + " = ";
+          if (field.value.type.enum_def && IsScalar(field.value.type.base_type)) {
+            auto ev = field.value.type.enum_def->ReverseLookup(
+              static_cast<int>(StringToInt(field.value.constant.c_str())),
+              false);
+            if (ev) {
+              code += WrapInNameSpace(
+                field.value.type.enum_def->defined_namespace,
+                GetEnumVal(*field.value.type.enum_def, *ev, parser_.opts));
+            }
+            else {
+              code += GenUnderlyingCast(field, true, field.value.constant);
+            }
+          }
+          else if (field.value.type.base_type == BASE_TYPE_BOOL) {
+            code += field.value.constant == "0" ? "false" : "true";
+          }
+          else {
+            code += GenDefaultConstant(field);
+          }
+        }
+      }
+    }
+    code += ") {\n  ";
+    //getting offsets
+
+    for (auto it = vect_pars_ids.begin();
+    it != vect_pars_ids.end(); ++it) {
+      auto&field = **it;
+      code += "auto " + field.name + "_off = ";
+      if (field.value.type.base_type == BASE_TYPE_STRING) {
+        code += "_fbb.CreateString(" + field.name + ");\n  ";
+      }
+      else if (field.value.type.base_type == BASE_TYPE_VECTOR) {
+        code += "_fbb.CreateVector<" + GenTypeWire(field.value.type.VectorType(), "", false) + ">(" + field.name + ");\n  ";
+      }
+    }
+
+    //...
+    code += struct_def.name + "Builder builder_(_fbb);\n";
+    for (size_t size = struct_def.sortbysize ? sizeof(largest_scalar_t) : 1;
+    size; size /= 2) {
+      for (auto it = struct_def.fields.vec.rbegin();
+      it != struct_def.fields.vec.rend(); ++it) {
+        auto &field = **it;
+        if (!field.deprecated && (!struct_def.sortbysize ||
+          size == SizeOf(field.value.type.base_type))) {
+          code += "  builder_.add_" + field.name + "(";
+          code += (!IsScalar(field.value.type.base_type) && (!IsStruct(field.value.type))) ? //if vector or string
+            (field.name + "_off") : field.name;
+          code += ");\n";
+        }
+      }
+    }
+    code += "  return builder_.Finish();\n}\n\n";
   }
 
   static void GenPadding(const FieldDef &field, std::string &code,