Function size

extern/imgui/imgui.h:1856–1856

    inline bool         empty() const                       { return Size == 0; }
    inline int          size() const                        { return Size; }
    inline int          size_in_bytes() const               { return Size * (int)sizeof(T); }
    inline int          max_size() const                    { return 0x7FFFFFFF / (int)sizeof(T); }
    inline int          capacity() const                    { return Capacity; }