[twincling] how does this code work ?

Mon, 10 Jul 2006 23:09:09 -0700 

Hi:

How does this piece of code work ?

#include <string.h>

char * strcat(s, append)
         register char *s;
         register const char *append;
{
        char *save = s;

        for (; *s; ++s);
        while (*s++ = *append++);
        return(save);
}

What role does 'register' keyword play here ?

thanks
Saifi.





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