Methode to call function with pointer in vector

Question

I try to call some functions stacked in vector. I did:

DataReader* GPSR_Ptr = new DataReader();
typedef leap::float64 (DataReader::*getFonction)();
std::vector<getFonction> vec (&DataReader::getLat);

But that didn't work.

then you need an [instance of `DataReader` in order to call this function using the function pointer](http://stackoverflow.com/questions/151418/calling-a-c-function-pointer-on-a-specific-object-instance) — m.s., Aug 13 '15 at 12:52

Quentin · Answer 1 · 2015-08-13T12:52:19.973

3

std::vector has no constructor taking a single value. Use an initializer list :

std::vector<getFonction> vec {&DataReader::getLat};

If you are stuck in 2003, you can also use the filling constructor :

std::vector<getFonction> vec(1, &DataReader::getLat);

But beware that it will copy the parameter, which you may not want for other types.

edited Aug 13 '15 at 12:52

answered Aug 13 '15 at 12:49

Quentin

1 Answers1