http://gcc.gnu.org/onlinedocs/gcc-3.2.3/cpp/Concatenation.html
On 3/28/06, Peter Harrison <[EMAIL PROTECTED]> wrote:
Jerome Kerdreux wrote:
>
> Dave Hansen give me a better solution I think,
> here a cut / paste of his anwser
>
> --- begin included file ---
> #define BIT(p,b) (b)
>
> #define PORT(p,b) (PORT ## p)
> #define PIN(p,b) (PIN ## p)
> #define DDR(p,b) (DDR ## p)
>
What does the ## do?
I have tried searching for an answer but the characters are thrown out
by my desktop and internet search tools
Pete Harrison
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