Fixed operator++. Added CreateXXX for vector types.

src/idl_gen_cpp.cpp

@@ -679,6 +679,9 @@ class CppGenerator : public BaseGenerator {
 
     // Generate a convenient CreateX function that uses the above builder
     // to create a table in one go.
+
+    std::vector<FieldDef*>vect_pars;
+
     code += "inline flatbuffers::Offset<" + struct_def.name + "> Create";
     code += struct_def.name;
     code += "(flatbuffers::FlatBufferBuilder &_fbb";
@@ -686,6 +689,7 @@ class CppGenerator : public BaseGenerator {
          it != struct_def.fields.vec.end(); ++it) {
       auto &field = **it;
       if (!field.deprecated) {
+        if (field.value.type.base_type == BASE_TYPE_STRING || field.value.type.base_type == BASE_TYPE_VECTOR) vect_pars.push_back(*it);
         code += ",\n   " + GenTypeWire(field.value.type, " ", true);
         code += field.name + " = ";
         if (field.value.type.enum_def && IsScalar(field.value.type.base_type)) {
@@ -721,7 +725,7 @@ 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;
+    if (vect_pars.size()) {
       code += "inline flatbuffers::Offset<" + struct_def.name + "> Create";
       code += struct_def.name;
       code += "(flatbuffers::FlatBufferBuilder &_fbb";
@@ -730,12 +734,10 @@ class CppGenerator : public BaseGenerator {
         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) + ">()";
           }
@@ -767,8 +769,8 @@ class CppGenerator : public BaseGenerator {
       code += ") {\n  ";
       //getting offsets
 
-    for (auto it = vect_pars_ids.begin();
-    it != vect_pars_ids.end(); ++it) {
+      for (auto it = vect_pars.begin();
+      it != vect_pars.end(); ++it) {
         auto&field = **it;
         code += "auto " + field.name + "_off = ";
         if (field.value.type.base_type == BASE_TYPE_STRING) {
@@ -779,7 +781,6 @@ class CppGenerator : public BaseGenerator {
         }
       }
 
-    //...
       code += struct_def.name + "Builder builder_(_fbb);\n";
       for (size_t size = struct_def.sortbysize ? sizeof(largest_scalar_t) : 1;
       size; size /= 2) {
@@ -789,7 +790,7 @@ class CppGenerator : public BaseGenerator {
           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
+            code += (field.value.type.base_type == BASE_TYPE_STRING || field.value.type.base_type == BASE_TYPE_VECTOR) ? //if vector or string
               (field.name + "_off") : field.name;
             code += ");\n";
           }
@@ -797,6 +798,7 @@ class CppGenerator : public BaseGenerator {
       }
       code += "  return builder_.Finish();\n}\n\n";
     }
+  }
 
   static void GenPadding(const FieldDef &field, std::string &code,
                          int &padding_id,