Visual Studio 2015 compiler issue

[Bill Leisge]

I am having a odd issue with a GPB message containing an Optional field of type float.  The VS compiler generates inline function for the set_variable() referencing this+16h and the get function variable() referencing this+18h.  Changing the .proto field type to uint32 gave the same result.  Any help here would be greatly appreciated.  Thank you

[Bill Leisge]

Looking back on my post, I need to add additional context.  The message of containing the variable in question is...

message GeneratorStatus {

    optional int32 command = 1;

    optional bool is_generator_on = 2;

    optional bool is_generator_busy = 3;

    optional float current = 4;

}

The following encode the GeneratorStatus message...

    pGeneratorStatus->set_current(4.5);

    if (pGeneratorStatus->has_current())

        float CurrentReadback = pGeneratorStatus->current();

CurrentReadback is a very small number, certainly not 4.5.

Tracing into the Protec .h file the disassembled function _internal_set_current() the AX register is set to the instance of pGeneratorStatus (this pointer)  and stores the argument at AX+16h.  Similarly the getter function _internal_current() set AX to the this pointer and sets the destination register to AX+18h.  The GeneratorStatus object member _current is a float and the generated code leading up to setting _current is correct, it is only the operand references that are not correct.

I have changed the scalar to double and uint32 to no avail.

It is obvious not a proto/Protec issue in that the generated C++ code is correct, but VS 2015 code generation anomaly.

I am hoping a group member has experienced this issue and might have a solution. Thank you.

[Adam Cozzette]

I would guess that there is some kind of mismatch in your protobuf generated code. This kind of thing might happen if perhaps you added a new field and updated the pb.cc file but not the pb.h file (or vice versa).

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