Re: [PATCH] more winnt.el cleanup.
On Mon, May 18, 1998 at 02:46:14AM +0200, Hrvoje Niksic wrote:
* Never use char pointers for internal works.
In most circumstances it is a mistake to use a `char *p' variable, and
increment it with p++, only to get Emchars from *p. The correct way
is to declare p as `Bufbyte *p', use INC_CHARPTR (p) to increment it,
and DEC_CHARPTR (p) to decrement it. Use set_charptr_emchar to set an
Emchar at that position.
Danger Robinson :-) One has to remember that set_charptr_emchar write
1-4 bytes depending on the Emchar, while the size of the overwritten
Emchar can be different. The net result is that you can't use this
macro to change a character in the middle of a string. You can only
append.
OG.