RTOS/CC2640R2F: void type?

Ruoshi Zhang

Part Number: CC2640R2F

Tool/software: TI-RTOS

Hi there, I guess this would look like a trivial problem and more related to coding.

in the simple_peripheral example, I see this line of code:

  // Start the Device
  VOID GAPRole_StartDevice(&SimpleBLEPeripheral_gapRoleCBs);

what does the capital VOID mean here?

I found its definition:

#define VOID (void)

thanks!

over 7 years ago

0 Severin Suveren over 7 years ago

TI__Mastermind 23730 points

Hi Ruoshi,

I am by no means familiar with the BLE stack environment, but what that line of code does is it void casts the return value of GAPRole_StartDevice(). This means any compiler warnings related to ignoring the return value will be silenced, in addition of being explicit in your code that you don't care about the return value.

Now, why they have decided to provide a macro for this is unbeknownst to me.

0 Ruoshi Zhang over 7 years ago in reply to Severin Suveren

Prodigy 160 points

thank you, it make sense.

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RTOS/CC2640R2F: void type?