Remove all usage of the "register" storage class specifier.

archival/gzip.c

@@ -484,7 +484,7 @@ static void send_bits(int value, int length)
  */
 static unsigned bi_reverse(unsigned code, int len)
 {
-	register unsigned res = 0;
+	unsigned res = 0;
 
 	do {
 		res |= code & 1;
@@ -782,7 +782,7 @@ static void check_match(IPos start, IPos match, int length);
  */
 static void lm_init(ush * flags)
 {
-	register unsigned j;
+	unsigned j;
 
 	/* Initialize the hash table. */
 	memset(head, 0, HASH_SIZE * sizeof(*head));
@@ -832,9 +832,9 @@ static void lm_init(ush * flags)
 static int longest_match(IPos cur_match)
 {
 	unsigned chain_length = max_chain_length;	/* max hash chain length */
-	register uch *scan = window + strstart;	/* current string */
-	register uch *match;	/* matched string */
-	register int len;	/* length of current match */
+	uch *scan = window + strstart;	/* current string */
+	uch *match;	/* matched string */
+	int len;	/* length of current match */
 	int best_len = prev_length;	/* best match length so far */
 	IPos limit =
 		strstart > (IPos) MAX_DIST ? strstart - (IPos) MAX_DIST : NIL;
@@ -848,9 +848,9 @@ static int longest_match(IPos cur_match)
 #if HASH_BITS < 8 || MAX_MATCH != 258
 #  error Code too clever
 #endif
-	register uch *strend = window + strstart + MAX_MATCH;
-	register uch scan_end1 = scan[best_len - 1];
-	register uch scan_end = scan[best_len];
+	uch *strend = window + strstart + MAX_MATCH;
+	uch scan_end1 = scan[best_len - 1];
+	uch scan_end = scan[best_len];
 
 	/* Do not waste too much time if we already have a good match: */
 	if (prev_length >= good_match) {
@@ -937,7 +937,7 @@ static void check_match(IPos start, IPos match, int length)
  */
 static void fill_window(void)
 {
-	register unsigned n, m;
+	unsigned n, m;
 	unsigned more =
 		(unsigned) (window_size - (ulg) lookahead - (ulg) strstart);
 	/* Amount of free space at the end of the window. */
@@ -1005,7 +1005,7 @@ static ulg deflate(void)
 	IPos prev_match;	/* previous match */
 	int flush;			/* set if current block must be flushed */
 	int match_available = 0;	/* set if previous match exists */
-	register unsigned match_length = MIN_MATCH - 1;	/* length of best match */
+	unsigned match_length = MIN_MATCH - 1;	/* length of best match */
 
 	/* Process the input block. */
 	while (lookahead != 0) {

archival/libunarchive/decompress_unzip.c

@@ -514,7 +514,7 @@ static int inflate_stored(int my_n, int my_b_stored, int my_k_stored, int setup)
 static int inflate_block(int *e)
 {
 	unsigned t;			/* block type */
-	register unsigned int b;	/* bit buffer */
+	unsigned int b;	/* bit buffer */
 	unsigned int k;	/* number of bits in bit buffer */
 
 	/* make local bit buffer */

coreutils/echo.c

@@ -71,7 +71,7 @@ int bb_echo(int ATTRIBUTE_UNUSED argc, char **argv)
 just_echo:
 #endif
 	while (*argv) {
-		register int c;
+		int c;
 
 		while ((c = *(*argv)++)) {
 			if (c == eflag) {	/* Check for escape seq. */

coreutils/od.c

@@ -35,7 +35,7 @@
 static void
 odoffset(int argc, char ***argvp)
 {
-	register char *num, *p;
+	char *num, *p;
 	int base;
 	char *end;
 

coreutils/test.c

@@ -554,7 +554,7 @@ static void initialize_group_array(void)
 /* Return non-zero if GID is one that we have in our groups list. */
 static int is_a_group_member(gid_t gid)
 {
-	register int i;
+	int i;
 
 	/* Short-circuit if possible, maybe saving a call to getgroups(). */
 	if (gid == getgid() || gid == getegid())

coreutils/tr.c

@@ -178,7 +178,7 @@ static unsigned int expand(const char *arg, char *buffer)
 
 static int complement(char *buffer, int buffer_len)
 {
-	register short i, j, ix;
+	short i, j, ix;
 	char conv[ASCII + 2];
 
 	ix = 0;
@@ -195,7 +195,7 @@ static int complement(char *buffer, int buffer_len)
 
 int tr_main(int argc, char **argv)
 {
-	register unsigned char *ptr;
+	unsigned char *ptr;
 	int output_length=0, input_length;
 	int idx = 1;
 	int i;

editors/awk.c

@@ -463,7 +463,7 @@ static void syntax_error(const char * const message)
 
 static unsigned int hashidx(const char *name)
 {
-	register unsigned int idx=0;
+	unsigned int idx=0;
 
 	while (*name)  idx = *name++ + (idx << 6) - idx;
 	return idx;
@@ -574,7 +574,7 @@ static void hash_remove(xhash *hash, const char *name)
 
 static void skip_spaces(char **s)
 {
-	register char *p = *s;
+	char *p = *s;
 
 	while(*p == ' ' || *p == '\t' ||
 			(*p == '\\' && *(p+1) == '\n' && (++p, ++t.lineno))) {
@@ -585,7 +585,7 @@ static void skip_spaces(char **s)
 
 static char *nextword(char **s)
 {
-	register char *p = *s;
+	char *p = *s;
 
 	while (*(*s)++) ;
 
@@ -594,7 +594,7 @@ static char *nextword(char **s)
 
 static char nextchar(char **s)
 {
-	register char c, *pps;
+	char c, *pps;
 
 	c = *((*s)++);
 	pps = *s;
@@ -686,7 +686,7 @@ static var *setvar_u(var *v, const char *value)
 /* set array element to user string */
 static void setari_u(var *a, int idx, const char *s)
 {
-	register var *v;
+	var *v;
 	static char sidx[12];
 
 	sprintf(sidx, "%d", idx);
@@ -991,7 +991,7 @@ static void rollback_token(void) { t.rollback = TRUE; }
 
 static node *new_node(uint32_t info)
 {
-	register node *n;
+	node *n;
 
 	n = (node *)xzalloc(sizeof(node));
 	n->info = info;
@@ -1136,7 +1136,7 @@ static node *parse_expr(uint32_t iexp)
 /* add node to chain. Return ptr to alloc'd node */
 static node *chain_node(uint32_t info)
 {
-	register node *n;
+	node *n;
 
 	if (! seq->first)
 		seq->first = seq->last = new_node(0);
@@ -1355,7 +1355,7 @@ static void parse_program(char *p)
 
 static node *mk_splitter(char *s, tsplitter *spl)
 {
-	register regex_t *re, *ire;
+	regex_t *re, *ire;
 	node *n;
 
 	re = &spl->re[0];

libbb/dump.c

@@ -37,9 +37,9 @@ static const char lcc[] = "diouxX";
 
 int bb_dump_size(FS * fs)
 {
-	register FU *fu;
-	register int bcnt, cur_size;
-	register char *fmt;
+	FU *fu;
+	int bcnt, cur_size;
+	char *fmt;
 	const char *p;
 	int prec;
 
@@ -354,7 +354,7 @@ static unsigned char *get(void)
 {
 	static int ateof = 1;
 	static unsigned char *curp=NULL, *savp; /*DBU:[dave@cray.com]initialize curp */
-	register int n;
+	int n;
 	int need, nread;
 	unsigned char *tmpp;
 
@@ -502,11 +502,11 @@ static void conv_u(PR * pr, unsigned char * p)
 static void display(void)
 {
 /*  extern FU *endfu; */
-	register FS *fs;
-	register FU *fu;
-	register PR *pr;
-	register int cnt;
-	register unsigned char *bp;
+	FS *fs;
+	FU *fu;
+	PR *pr;
+	int cnt;
+	unsigned char *bp;
 
 	off_t saveaddress;
 	unsigned char savech = 0, *savebp;
@@ -650,7 +650,7 @@ static void display(void)
 
 int bb_dump_dump(char **argv)
 {
-	register FS *tfs;
+	FS *tfs;
 
 	/* figure out the data block bb_dump_size */
 	for (bb_dump_blocksize = 0, tfs = bb_dump_fshead; tfs; tfs = tfs->nextfs) {

loginutils/login.c

@@ -377,7 +377,7 @@ static int is_my_tty ( const char *tty )
 static void motd (void)
 {
 	FILE *fp;
-	register int c;
+	int c;
 
 	if (( fp = fopen ( bb_path_motd_file, "r" ))) {
 		while (( c = getc ( fp )) != EOF )

networking/udhcp/packet.c

@@ -87,7 +87,7 @@ uint16_t udhcp_checksum(void *addr, int count)
 	/* Compute Internet Checksum for "count" bytes
 	 *         beginning at location "addr".
 	 */
-	register int32_t sum = 0;
+	int32_t sum = 0;
 	uint16_t *source = (uint16_t *) addr;
 
 	while (count > 1)  {

shell/ash.c

@@ -13472,7 +13472,7 @@ static const char op_tokens[] = {
 
 static arith_t arith (const char *expr, int *perrcode)
 {
-    register char arithval; /* Current character under analysis */
+    char arithval; /* Current character under analysis */
     operator lasttok, op;
     operator prec;
 

shell/lash.c

@@ -707,10 +707,10 @@ static int get_command(FILE * source, char *command)
 	return 0;
 }
 
-static char* itoa(register int i)
+static char* itoa(int i)
 {
 	static char a[7]; /* Max 7 ints */
-	register char *b = a + sizeof(a) - 1;
+	char *b = a + sizeof(a) - 1;
 	int   sign = (i < 0);
 
 	if (sign)

util-linux/hexdump.c

@@ -15,7 +15,7 @@
 
 static void bb_dump_addfile(char *name)
 {
-	register char *p;
+	char *p;
 	FILE *fp;
 	char *buf;