Cinder app to demonstrate how the app crashes when run on iOS when it parses a json file containing a float.

JsonIosApp.cpp

#include "cinder/app/AppNative.h"
#include "cinder/gl/gl.h"
#include "cinder/Json.h"

using namespace ci;
using namespace ci::app;
using namespace std;

JsonTree queryData( const std::string &query );

class JsonIosApp : public AppNative {
  public:
  void setup();
	void update();
	void draw();
	void loadJson();
	bool mDataRetrieved = false;
	JsonTree mData;
};

void JsonIosApp::setup()
{
	/*string num = "0.41999999999999998";
	//string newString = boost::lexical_cast<string>( num );
	Json::Value newString = Json::Value( fromString<double>( num ) );
	
	console() << newString << endl;*/
}


void JsonIosApp::loadJson()
{
	JsonTree searchResults;
	JsonTree queryResult;
	while( ! mDataRetrieved ) {
		try {
			mData = queryData("sampleData.json");
			
			console() << queryResult << endl;
//			searchResults = queryResult.getChild("daily");
			mDataRetrieved = true;
		}
		catch (const std::exception& ex) {
			console() << "exception" << endl;
			console() << ex.what() << endl;
			ci::sleep( 1000 ); // try again in 1 second
		}
	}
}

void JsonIosApp::update()
{
	if(!mDataRetrieved){
		loadJson();
	}
}

void JsonIosApp::draw()
{
	// clear out the window with black
	gl::clear( Color( 0, 0, 0 ) ); 
}

JsonTree queryData( const std::string &searchUrl )
{
	Url url(searchUrl , true );

//	DataSourceRef dataSource = loadUrl( url );
	DataSourceRef dataSource = loadResource( searchUrl );
	string dataString = loadString( dataSource );
	
	JsonTree data = JsonTree( dataString );
	
  //console() << "DATA string: " << dataString << endl;
	//console() << data.getChild("daily") << endl;
	return data;
}

CINDER_APP_NATIVE( JsonIosApp, RendererGl )

sampleData.json

{
  "daily":{
		"data":[
			{
				"time":1372478400,
				"summary":"Partly cloudy until evening.",
				"icon":"partly-cloudy-day",
				"sunriseTime":1372498151,
				"sunsetTime":1372552419,
				"precipIntensity":0.003,
				"precipIntensityMax":0.013,
				"precipIntensityMaxTime":1372478400,
				"precipType":"rain",
				"temperatureMin":68.43,
				"temperatureMinTime":1372500000,
				"temperatureMax":84.69,
				"temperatureMaxTime":1372536000,
				"dewPoint":67.21,
				"windSpeed":6.32,
				"windBearing":200,
				"cloudCover":0.42,
				"humidity":0.74,
				"pressure":1002,
				"visibility":10,
				"ozone":324.98
			}
		]
	}
}