call of overloaded ... is ambiguous par QuentinC 2 - OpenClassrooms It would, as the compiler would no longer see ambiguity errors when compiling the piece of code mentioned in the first post. If the destination type is unsigned, the resulting value is the smallest unsigned value equal to the source value modulo 2 n If the conversion is listed under integral promotions, it is a promotion and not a conversion. The only actual non-built in library you seem to be using is the RTClib, so your platformio.ini should look like. conversion from 'int' to 'String' is ambiguous - Arduino Forum Both have one custom type conversion, hence the ambiguity. RWCString is based on the std::string from the C++ Standard Library. Wherever it is not ambiguous, the Chora compiler applies the necessary type conversion implicitly. Otherwise, you could state. Type conversion: Char to string - Embedded Wizard a variable or you pass it as parameter in a method invocation. Point 3 client.publish doesn't work take String as the payload argument, it takes either const char * or const uint8_t *. wxString - WxWiki - wxWidgets So, what you can simply do is use String s c_str method to pas a const char * as the payload. ESP8266WebServer-impl.h compilation error - PlatformIO IDE - PlatformIO ... A prvalue of an integer type or of an unscoped (since C++11) enumeration type can be converted to any other integer type. ESP8266 IP to String Conversion - Circuits4you.com Overloading by Return Type in C++ - artificial::mind blog Converting ESP8266 IP address to string or character array.There is simple way to convert IP address to string is using toString() function. It seems the type mechanisms are working against each other: it can't figure out which conversion to use because each conversion is equally valid, but a no-conversion overload can't be defined because it already has been. Qt : 5.12 GCC : 10.3 error: conversion from 'uint64_t' {aka 'long unsigned int'} to 'const QVariant' is ambiguous filter_. Arduino part i coded and works fine, I declared and array and used "Serial.write (array)" command. Platform is g++ MinGW x86 running on Windows 7 . conversion from 'int' to 'String' is ambiguous. double. C＃でint配列をstring配列に変換します Autre fait divers, si je supprime la surcharge toString(const char*), il prend toString(bool) au lieu de toString(const string&) si on passe des chaînes littérales. Par contre, qu'il essaye toString(const wstring&, int) et qu'il me dise encore que ce serait le plus proche (near match), là je ne comprends pas du tout.
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