C programming hint

[Lum Johnson]

In article <913 at teddy.UUCP> kps at teddy.UUCP writes:
>
>	char blanks[SIZE];
>	blanks[0] = ' ';
>	strncpy(blanks + 1, blanks, SIZE - 1);	/* initialize entire array */
>
> ... I've been bludgeoned to death with the fact that my method is
> implementation dependent and that it won't work all the time.

This actually works in assembly language for the PDP-10.

	movei t1," "		; put <SPACE> in reg
	movem t1,blanks		; deposit char in buffer
	move t1,[blanks,,blanks+1] ; control register for blt
	blt t1,blanks+size	; propagate char over buffer

The BLT iterates the copy-previous-char operation (specified in t1),
incrementing both halves of the control register (t1) until
blanks+size is reached.

Lum Johnson ..!cbosgd!osu-eddie!lum or lum at osu-eddie.uucp