Page 193: Unused argument in "new" placement operator.

[dcechano]

On page 193, you introduce the placement operators. Specifically, you demonstrate how to use new operator and provide the function signature as void* operator new(size_t, void*). However, when use of the function is demonstrated it is demonstrated as:

    auto point1 = new(&data[0 * point_size]) Point{};
    auto point2 = new(&data[1 * point_size]) Point{};
    auto point3 = new(&data[2 * point_size]) Point{};

The provided signature is not consistent with the demonstrated use. Specifically, there is no size_t passed in as an argument as the function signature stipulates there should. This was confusing. Why is there no size_t passed in when the function is called? Is it optional? I ran the code, and it compiles without issues or warning, but the book does not explain what is going on here, nor even acknowledge the inconsistency. As a book that is teaching the language and assumes no prior knowledge with c++, this seems like an oversight.

In any case, I am enjoying the book so far. I just wanted to point this out.