Trying to copy a Json::Value object to a long int fails to compile, because Json::Uint64 and Json::Int64 are mapped to unsigned long int and long int, respectively. If the destination type is unsigned, the resulting value is the smallest unsigned value equal to the source value modulo 2 n Error: Ambiguous overload for 'operator=' | ArduinoJson 5 string& operator=(string const& str); // (1) string& operator=(char ch); // (2) Both of these operator= overloads require a user-defined conversion from your argument of type GenericType. I've done what I know I can do so far. Point 3 client.publish doesn't work take String as the payload argument, it takes either const char * or const uint8_t *. I'm on the latest versions, so not sure if this would have solved your problem at the time. Converting everything to and from wxString - WxWiki Ambiguous conversion. Type conversions and type safety | Microsoft Docs String class for passing textual data to or receiving it from wxWidgets. RWCString - Perforce It is extremely likely that == is overloaded for comparisons between const char* and RWCString. int atoi((const char * str); Here, str is of type pointer to a character. wxString - WxWiki - wxWidgets conversion from 'int64_t {aka long int}' to 'QVariant' is ambiguous ... It does however have a constructor taking a char, and a QChar which has an implicit conversion . Both have one custom type conversion, hence the ambiguity. . Conversions can be implicit or explicit, and this determines whether an explicit cast is required.. Signed-off-by: Brian Hetro <whee@smaertness.net> Signed-off-by: Junio C Hamano <gitster@pobox.com> conversion from 'IPAddress' to 'const char*' is ambiguous Code Example
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