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Hi,

What exactly does the following code mean? More specific, what are the
colons for? Is this some kind of way to initialize the structure
members?

struct somestruct
{
unsigned char a:1;
unsigned char b:1;
unsigned char c:1;
};

Regards,

Frederiek

Frederiek wrote:
> Hi,
>
> What exactly does the following code mean? More specific, what are the
> colons for? Is this some kind of way to initialize the structure
> members?
>
> struct somestruct
> {
> unsigned char a:1;
> unsigned char b:1;
> unsigned char c:1;
> };
>
> Regards,
>
> Frederiek

Look in your favorite reference for bitfields.

Frederiek wrote:
> Hi,
>
> What exactly does the following code mean? More specific, what are the
> colons for? Is this some kind of way to initialize the structure
> members?
>
> struct somestruct
> {
> unsigned char a:1;
> unsigned char b:1;
> unsigned char c:1;
> };
>
> Regards,
>
> Frederiek

It's declaring a bit field.

-Brian

Frederiek <> wrote:

> What exactly does the following code mean? More specific, what are the
> colons for? Is this some kind of way to initialize the structure
> members?
>
> struct somestruct
> {
> unsigned char a:1;
> unsigned char b:1;
> unsigned char c:1;
> };

It's called a bit-field. a, b and c are each one bit (that is what
the number after the colon means).

regards
--
jb

(reply address in rot13, unscramble first)