Details
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Bug
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Status: Closed
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Major - P3
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Resolution: Duplicate
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3.4.0
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None
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None
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Windows
Description
Hi All,
If I simply call this function:
mongocxx::uri uri = mongocxx::uri(ServerSetup::mongoUri().c_str());
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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());
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then it crashes with null pointer. See the message in file attachment.
My full code is the following:
#include <cstdint>
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#include <iostream>
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#include <vector>
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#include <string>
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#include <mongocxx/instance.hpp>
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#include <bsoncxx/json.hpp>
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#include <bsoncxx/string/view_or_value.hpp>
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#include <mongocxx/client.hpp>
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#include <mongocxx/collection.hpp>
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#include <mongocxx/stdx.hpp>
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#include <mongocxx/uri.hpp>
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class ServerSetup
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{
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public:
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const static std::string& mongoUri();
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private:
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static std::string MongoUri;
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};
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std::string ServerSetup::MongoUri = "mongodb://my_server/?ssl=true";
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const std::string& ServerSetup::mongoUri()
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{ return MongoUri; }
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int main()
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{
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try
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{
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mongocxx::instance instance{};
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mongocxx::uri uri = mongocxx::uri(ServerSetup::mongoUri());
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}
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catch (std::exception& ex)
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{
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std::cout << "std::excetpion caught: " << ex.what();
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}
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catch (...)
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{
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std::cout << "unknown excetpion caught";
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}
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return 0;
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}
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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
