Question

I have a simple custom class, Foo , and I want to make a vector of Foo objects. In my .h file I declare the vector like this:

std::vector<Foo> bar;

I then try and initialize it to have a capacity in the .cpp file like this:

vector<Foo> bar;
bar.resize(10);

Foo has a custom constructor:

Foo(string name, int number)

Which gives me a compile error:

a.cpp:20:6: error: request for member 'resize' in 'bar', 
which is of non-class type 'std::vector<Foo>()'

How can I initialize the vector of custom objects?

Answer 1

The compiler thinks bar is a function (that takes no parameters and returns vector<Foo>), not a variable of type vector<Foo>. So you have put some wrong brackets somewhere.