Incompatible Types?????

[noaaprogrammer]

I have a structure called WAVE_DATA in my project. It is defined in a 'C' file. In that file, an instance of the structure is defined as 'wavdat'. I also have a global instance of this structure defined in a 'C++' file, named 'wp_wavdat'. I am trying to copy the contents of 'wavdat' into 'wp_wavdat' by using this line of code in the 'C' file :

wp_wavdat = wavdat;

This gives me the error:

error C2115: '=' : incompatible types

I have noticed that 'wp_wavdat' uses the '.' operator and 'wavdat' uses '->'. Does anyone know why this is happening and how to fix it?

 

[bitwise]

Yeah, one must be a pointer to the structure (->) while the other is just a regular old object (.) Whichever one is the pointer (I'm assuming 'wp_wavdat' is) do something like this:

*wp_wavdat = &wavdat;

Keep in mind however that 'wp_wavdat' now points to the memory location 'wavdat' meaing that you do not have a copy of the object but instead you have another reference to it. They are one in the same now, which might not be desirable.

bitwise

 

[Cagliostro]

If wp_wavdat uses (.) means what it is an instance but wavdat is a pointer because use ->. In this case you should
wp_wavdat = *wavdat; or
wavdat = &wp_wavdat;
By the way, why does the name of a pointer begin with wp_? John Fill

ivfmd@mail.md