Discard BCOPY/BZERO macros.

Compiler recognizes memmove(3) and memset(3), and produces smaller
binaries.

Closes: #46

common/conv.c

@@ -118,7 +118,7 @@ default_char2int(SCR *sp, const char * str, ssize_t len, CONVWIN *cw,
 	size_t left = len;
 	int error = 1;
 
-	BZERO(&mbs, 1);
+	memset(&mbs, 0, sizeof(mbs));
 	BINC_RETW(NULL, *tostr, *blen, nlen);
 
 #ifdef USE_ICONV
@@ -245,7 +245,7 @@ default_int2char(SCR *sp, const CHAR_T * str, ssize_t len, CONVWIN *cw,
 #endif
 
 
-	BZERO(&mbs, 1);
+	memset(&mbs, 0, sizeof(mbs));
 	BINC_RETC(NULL, *tostr, *blen, nlen);
 	dst = *tostr; buflen = *blen;
 
@@ -323,7 +323,7 @@ conv_init(SCR *orig, SCR *sp)
 	if (orig == NULL)
 		setlocale(LC_ALL, "");
 	if (orig != NULL)
-		BCOPY(&orig->conv, &sp->conv, 1);
+		memmove(&sp->conv, &orig->conv, sizeof(CONV));
 #ifdef USE_WIDECHAR
 	else {
 		char *ctype = setlocale(LC_CTYPE, NULL);

common/key.c

@@ -374,8 +374,8 @@ v_event_push(SCR *sp,
 	if (total >= gp->i_nelem && v_event_grow(sp, MAX(total, 64)))
 		return (1);
 	if (gp->i_cnt)
-		BCOPY(gp->i_event + gp->i_next,
-		    gp->i_event + TERM_PUSH_SHIFT + nitems, gp->i_cnt);
+		memmove(gp->i_event + TERM_PUSH_SHIFT + nitems,
+		    gp->i_event + gp->i_next, gp->i_cnt * sizeof(EVENT));
 	gp->i_next = TERM_PUSH_SHIFT;
 
 	/* Put the new items into the queue. */

common/mem.h

@@ -6,7 +6,7 @@
  *
  * See the LICENSE file for redistribution information.
  *
- *	$Id: mem.h,v 10.17 2012/10/07 00:40:29 zy Exp $
+ *	$Id: mem.h,v 10.18 2016/01/03 15:47:56 zy Exp $
  */
 
 #ifdef DEBUG
@@ -192,13 +192,6 @@
 	p = newp;							\
 }
 
-/*
- * Versions of bcopy(3) and bzero(3) that use the size of the
- * initial pointer to figure out how much memory to manipulate.
- */
-#define	BCOPY(p, t, len)	bcopy(p, t, (len) * sizeof(*(p)))
-#define	BZERO(p, len)		bzero(p, (len) * sizeof(*(p)))
-
 /* 
  * p2roundup --
  *	Get next power of 2; convenient for realloc.