Qt Creator and C++14 compatibility on OS X

freddy311082

Hi guys. I'm trying to make this:

void throw_exception(const auto& obj, const QString& errorMsg)
{
// .. here my code
}

as you can see, I'm using auto as parameter of my function, but this feature is available in c++14. To enable c++14 compilation I have added this 2 lines t my .pro file:

CONFIG += c++11
QMAKE_CXXFLAGS += -std=c++1y

CONFIG += c+=11 and not c++14 because for some reason qt creator doesn't understand CONFIG+= c++14.
well... this doesn't work. The error which I got is simple:

../untitled/mainwindow.h:6:28: error: 'auto' not allowed in function prototype
void throw_exception(const auto& obj, const QString& errorMsg)
                           ^~~~

so, that told me that c++14 configuration is not available, only c++11 is available...
How can I fix this ?

regards

bsomervi

I don't think your function definition is legal C++. You probably want something like:

template<typename T>
void throw_exception(T const& obj, QString const& errorMsg) {
   /// ...
}

AFAIK only abbreviated generic lambdas allow auto type deduction of function arguments.

freddy311082

Thanks.. c++14 has support for auto type in parameters but just in lambda functions... not for free functions, regards... my mistake