What does -> mean in the CMSIS libraries?

[noname4me]

Hi

I've been looking through STM's library files provided for programming their microcontrollers and I keep coming across stuff like:

hcdc->CmdOpCode = req->bRequest;

I have tried googling, to no avail, the meaning of the "->" construction.

Can anyone explain this, or point me to something that I can read?

Thanks

[ataradov]

You need to read any book on C. This is pretty basic stuff.

-> is a pointer dereferencing operator. hcdc is a pointer to a structure that has a member CmdOpCode. -> is a way to access members of structures defined as pointers.

[noname4me]

Hi,

..and now I know what it's called - thanks

I've googled it, and understand it now.

I am more familiar with the *...

[jnz]

Hi,

..and now I know what it's called - thanks

I've googled it, and understand it now.

I am more familiar with the *...

You should be more framiliar with the "."

When it's a struct, it's struct.value when it's a pointer to a struct it's struct_ptr->value

[dannyf]

I've googled it

as others have pointed out, I think you will get far more from your time systemically learning about C than googling it.

[noname4me]

Actually that IS an easier way to understand it - thanks!

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