Re: [avr-gcc-list] typecast

[E. Weddington]

On 25 Mar 2003 at 16:33, Torsten Hahn wrote:

> Hi,
> 
> if i have
> 
> uint16_t number16 = 1234;
> uint8_t number8;
> 
> number8 = (uint8_t)(number16);
> 
> do i get the highest 8 bit from number16 into number8 ? Or is there a
> better (safer) way to geht the most significant byte of an 16, 32 ...
> Bit value ?
> 

You will get the lower 8 bits of number16 into number8.

To get the high byte of number16 into number8, add a bit-shift right:

number8 = (uint8_t)(number16 >> 8);

Eric