How do I use jsoncpp to transmit this data?

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I am converting a desktop app to a client version of a client/server app.

I need JSON data to be used in a function call like

void ProcessData(long long Type,long long Kind, long long Shape,long long Index,Json::Value &jValue )
{
   int iState = 1;
   jValue[Type][MakeString(Kind)][Shape][MakeString(Index)] = 1;
}

Where MakeString() is a function that converts from long long to string.

The problem is that the operator[] reports that there are numerous matches for the argument type.

How can I get round the numerous argument type considering the fact that the code that json is being introduced to already has a structure.

If there is a better way to handle this, I'll like to know.Its just that the parameter of the function are fixed.

What I have tried:

I have spent several hours googling for a solution.

Posted 21-Oct-17 15:07pm

Gbenbam

Updated 21-Oct-17 22:54pm

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Richard MacCutchan 22-Oct-17 3:07am

What is the definition of MakeString, what is the definition of jValue? Please make more effort to provide proper details in your questions.

Gbenbam 23-Oct-17 3:53am

Json::Value is a JsonCpp Value type it will be familiar to people ho use JsonCpp.

std::string MakeString(long long llValue)
{ char Buffer[100];
sprintf(buffer,"%lld",llValue);

return std::string(Buffer);
}

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KarstenK · Answer 1 · 2017-10-21T22:54:00

If the type conversion isnt clear, you run into trouble of getting strange bugs. It better to enforce the explicit type conversion like this:

C++

[(const char*) MakeString(Index)]

It could be that the automatic cast from the string is the original problem. I dont like such concatenated expressions, because it make debugging harder.

C++

String s= MakeString(Index);
[(const cahr*) s] // use result in json