Hi All,

 

If I simply call this function:

 

mongocxx::uri uri = mongocxx::uri(ServerSetup::mongoUri().c_str());

with C type char* parameter like above, it works, but if I call it with a c++ type string like this:

mongocxx::uri uri = mongocxx::uri(ServerSetup::mongoUri());

then it crashes with null pointer. See the message in file attachment.

 

My full code is the following:

 

#include <cstdint>

#include <iostream>

#include <vector>

#include <string>

#include <mongocxx/instance.hpp>

#include <bsoncxx/json.hpp>

#include <bsoncxx/string/view_or_value.hpp>

#include <mongocxx/client.hpp>

#include <mongocxx/collection.hpp>

#include <mongocxx/stdx.hpp>

#include <mongocxx/uri.hpp>

class ServerSetup

{ public: const static std::string& mongoUri(); private: static std::string MongoUri; }

;

//Of course the real url would be different, not "my_server", but I can't share the company url with you
std::string ServerSetup::MongoUri = "mongodb://my_server/?ssl=true";

const std::string& ServerSetup::mongoUri()

{ return MongoUri; }

int main()

{

try

{

mongocxx::instance instance{};

mongocxx::uri uri = mongocxx::uri(ServerSetup::mongoUri());

}

catch (std::exception& ex)

{ std::cout << "std::excetpion caught: " << ex.what(); }

catch (...)

{ std::cout << "unknown excetpion caught"; }

return 0;

}

It doesn't seem to be correct.
(It doesn't work with either non-static string parameter, but I then I got an exception, like "an invalid MongoDB URI was provided". But the non-static string was working if I convert it with c_str() as above.)
Please me with this issue.

Regards,
Balázs