Bug#45288: pb2 returns a lot of compilation warnings

Tag or remove unused arguments and variables.

regex/main.c:
  Use the real prototype.
sql/ha_ndbcluster.cc:
  Make conditions less ambiguous.

12 files changed, 72 insertions, 49 deletions

diff --git a/client/mysql.cc b/client/mysql.cc
index 5b90f318629..4c2c75dc79a 100644
--- a/client/mysql.cc
+++ b/client/mysql.cc
@@ -3725,7 +3725,8 @@ print_tab_data(MYSQL_RES *result)
 }
 
 static int
-com_tee(String *buffer, char *line __attribute__((unused)))
+com_tee(String *buffer __attribute__((unused)),
+        char *line __attribute__((unused)))
 {
   char file_name[FN_REFLEN], *end, *param;
 
@@ -3784,7 +3785,8 @@ com_notee(String *buffer __attribute__((unused)),
 
 #ifdef USE_POPEN
 static int
-com_pager(String *buffer, char *line __attribute__((unused)))
+com_pager(String *buffer __attribute__((unused)),
+          char *line __attribute__((unused)))
 {
   char pager_name[FN_REFLEN], *end, *param;
 
@@ -3911,7 +3913,8 @@ com_rehash(String *buffer __attribute__((unused)),
 
 #ifdef USE_POPEN
 static int
-com_shell(String *buffer, char *line __attribute__((unused)))
+com_shell(String *buffer __attribute__((unused)),
+          char *line __attribute__((unused)))
 {
   char *shell_cmd;
 
@@ -4003,7 +4006,8 @@ com_connect(String *buffer, char *line)
 }
 
 
-static int com_source(String *buffer, char *line)
+static int com_source(String *buffer __attribute__((unused)),
+                      char *line)
 {
   char source_name[FN_REFLEN], *end, *param;
   LINE_BUFFER *line_buff;
@@ -4908,7 +4912,8 @@ static void init_username()
   }
 }
 
-static int com_prompt(String *buffer, char *line)
+static int com_prompt(String *buffer __attribute__((unused)),
+                      char *line)
 {
   char *ptr=strchr(line, ' ');
   prompt_counter = 0;
diff --git a/client/sql_string.h b/client/sql_string.h
index da19c1ccfe5..84fe26a54b9 100644
--- a/client/sql_string.h
+++ b/client/sql_string.h
@@ -70,9 +70,13 @@ public:
   }
   static void *operator new(size_t size, MEM_ROOT *mem_root)
   { return (void*) alloc_root(mem_root, (uint) size); }
-  static void operator delete(void *ptr_arg,size_t size)
-  { TRASH(ptr_arg, size); }
-  static void operator delete(void *ptr_arg, MEM_ROOT *mem_root)
+  static void operator delete(void *ptr_arg, size_t size)
+  {
+    (void) ptr_arg;
+    (void) size;
+    TRASH(ptr_arg, size);
+  }
+  static void operator delete(void *, MEM_ROOT *)
   { /* never called */ }
   ~String() { free(); }
 
diff --git a/cmd-line-utils/libedit/common.c b/cmd-line-utils/libedit/common.c
index d4d024eae10..ba5890fa606 100644
--- a/cmd-line-utils/libedit/common.c
+++ b/cmd-line-utils/libedit/common.c
@@ -136,7 +136,7 @@ ed_delete_prev_word(EditLine *el, int c __attribute__((__unused__)))
  */
 protected el_action_t
 /*ARGSUSED*/
-ed_delete_next_char(EditLine *el, int c)
+ed_delete_next_char(EditLine *el, int c __attribute__((__unused__)))
 {
 #ifdef notdef			/* XXX */
 #define	EL	el->el_line
@@ -431,7 +431,8 @@ ed_argument_digit(EditLine *el, int c)
  */
 protected el_action_t
 /*ARGSUSED*/
-ed_unassigned(EditLine *el, int c __attribute__((__unused__)))
+ed_unassigned(EditLine *el __attribute__((__unused__)),
+	      int c __attribute__((__unused__)))
 {
 
 	return (CC_ERROR);
diff --git a/cmd-line-utils/libedit/filecomplete.c b/cmd-line-utils/libedit/filecomplete.c
index 4c63f57bc45..05bd10e9f9e 100644
--- a/cmd-line-utils/libedit/filecomplete.c
+++ b/cmd-line-utils/libedit/filecomplete.c
@@ -95,10 +95,9 @@ static char break_chars[] = { ' ', '\t', '\n', '"', '\\', '\'', '`', '@', '$',
 char *
 fn_tilde_expand(const char *txt)
 {
-	struct passwd pwres, *pass;
+	struct passwd *pass;
 	char *temp;
 	size_t len = 0;
-	char pwbuf[1024];
 
 	if (txt[0] != '~')
 		return (strdup(txt));
diff --git a/cmd-line-utils/libedit/readline.c b/cmd-line-utils/libedit/readline.c
index 1f1b18c97d8..0318ab409b3 100644
--- a/cmd-line-utils/libedit/readline.c
+++ b/cmd-line-utils/libedit/readline.c
@@ -202,7 +202,7 @@ _move_history(int op)
  */
 static int
 /*ARGSUSED*/
-_getc_function(EditLine *el, char *c)
+_getc_function(EditLine *el __attribute__((__unused__)), char *c)
 {
 	int i;
 
@@ -1613,7 +1613,8 @@ rl_insert(int count, int c)
 
 /*ARGSUSED*/
 int
-rl_newline(int count, int c)
+rl_newline(int count __attribute__((__unused__)),
+	   int c __attribute__((__unused__)))
 {
 	/*
 	 * Readline-4.0 appears to ignore the args.
@@ -1623,7 +1624,7 @@ rl_newline(int count, int c)
 
 /*ARGSUSED*/
 static unsigned char
-rl_bind_wrapper(EditLine *el, unsigned char c)
+rl_bind_wrapper(EditLine *el __attribute__((__unused__)), unsigned char c)
 {
 	if (map[c] == NULL)
 	    return CC_ERROR;
@@ -1718,7 +1719,7 @@ rl_get_previous_history(int count, int key)
 
 void
 /*ARGSUSED*/
-rl_prep_terminal(int meta_flag)
+rl_prep_terminal(int meta_flag __attribute__((__unused__)))
 {
 	el_set(e, EL_PREP_TERM, 1);
 }
@@ -1922,7 +1923,8 @@ _rl_qsort_string_compare(char **s1, char **s2)
 
 int
 /*ARGSUSED*/
-rl_kill_text(int from, int to)
+rl_kill_text(int from __attribute__((__unused__)),
+	     int to __attribute__((__unused__)))
 {
 	return 0;
 }
@@ -1941,20 +1943,25 @@ rl_get_keymap(void)
 
 void
 /*ARGSUSED*/
-rl_set_keymap(Keymap k)
+rl_set_keymap(Keymap k __attribute__((__unused__)))
 {
 }
 
 int
 /*ARGSUSED*/
-rl_generic_bind(int type, const char * keyseq, const char * data, Keymap k)
+rl_generic_bind(int type __attribute__((__unused__)),
+		const char * keyseq __attribute__((__unused__)),
+		const char * data __attribute__((__unused__)),
+		Keymap k __attribute__((__unused__)))
 {
 	return 0;
 }
 
 int
 /*ARGSUSED*/
-rl_bind_key_in_map(int key, Function *fun, Keymap k)
+rl_bind_key_in_map(int key __attribute__((__unused__)),
+		   Function *fun __attribute__((__unused__)),
+		   Keymap k __attribute__((__unused__)))
 {
 	return 0;
 }
diff --git a/cmd-line-utils/libedit/vi.c b/cmd-line-utils/libedit/vi.c
index 00a9f493a9b..d628f076a1d 100644
--- a/cmd-line-utils/libedit/vi.c
+++ b/cmd-line-utils/libedit/vi.c
@@ -145,7 +145,7 @@ vi_paste_prev(EditLine *el, int c __attribute__((__unused__)))
  */
 protected el_action_t
 /*ARGSUSED*/
-vi_prev_big_word(EditLine *el, int c)
+vi_prev_big_word(EditLine *el, int c __attribute__((__unused__)))
 {
 
 	if (el->el_line.cursor == el->el_line.buffer)
@@ -195,7 +195,7 @@ vi_prev_word(EditLine *el, int c __attribute__((__unused__)))
  */
 protected el_action_t
 /*ARGSUSED*/
-vi_next_big_word(EditLine *el, int c)
+vi_next_big_word(EditLine *el, int c __attribute__((__unused__)))
 {
 
 	if (el->el_line.cursor >= el->el_line.lastchar - 1)
@@ -462,7 +462,7 @@ vi_delete_meta(EditLine *el, int c __attribute__((__unused__)))
  */
 protected el_action_t
 /*ARGSUSED*/
-vi_end_big_word(EditLine *el, int c)
+vi_end_big_word(EditLine *el, int c __attribute__((__unused__)))
 {
 
 	if (el->el_line.cursor == el->el_line.lastchar)
@@ -797,7 +797,7 @@ vi_repeat_prev_char(EditLine *el, int c __attribute__((__unused__)))
  */
 protected el_action_t
 /*ARGSUSED*/
-vi_match(EditLine *el, int c)
+vi_match(EditLine *el, int c __attribute__((__unused__)))
 {
 	const char match_chars[] = "()[]{}";
 	char *cp;
@@ -844,7 +844,7 @@ vi_match(EditLine *el, int c)
  */
 protected el_action_t
 /*ARGSUSED*/
-vi_undo_line(EditLine *el, int c)
+vi_undo_line(EditLine *el, int c __attribute__((__unused__)))
 {
 
 	cv_undo(el);
@@ -858,7 +858,7 @@ vi_undo_line(EditLine *el, int c)
  */
 protected el_action_t
 /*ARGSUSED*/
-vi_to_column(EditLine *el, int c)
+vi_to_column(EditLine *el, int c __attribute__((__unused__)))
 {
 
 	el->el_line.cursor = el->el_line.buffer;
@@ -872,7 +872,7 @@ vi_to_column(EditLine *el, int c)
  */
 protected el_action_t
 /*ARGSUSED*/
-vi_yank_end(EditLine *el, int c)
+vi_yank_end(EditLine *el, int c __attribute__((__unused__)))
 {
 
 	cv_yank(el, el->el_line.cursor,
@@ -886,7 +886,7 @@ vi_yank_end(EditLine *el, int c)
  */
 protected el_action_t
 /*ARGSUSED*/
-vi_yank(EditLine *el, int c)
+vi_yank(EditLine *el, int c __attribute__((__unused__)))
 {
 
 	return cv_action(el, YANK);
@@ -898,7 +898,7 @@ vi_yank(EditLine *el, int c)
  */
 protected el_action_t
 /*ARGSUSED*/
-vi_comment_out(EditLine *el, int c)
+vi_comment_out(EditLine *el, int c __attribute__((__unused__)))
 {
 
 	el->el_line.cursor = el->el_line.buffer;
@@ -919,7 +919,8 @@ extern char *get_alias_text(const char *) __weak_reference(get_alias_text);
 #endif
 protected el_action_t
 /*ARGSUSED*/
-vi_alias(EditLine *el, int c)
+vi_alias(EditLine *el __attribute__((__unused__)),
+	 int c __attribute__((__unused__)))
 {
 #if defined(__weak_reference) && !defined(__FreeBSD__)
 	char alias_name[3];
@@ -949,7 +950,7 @@ vi_alias(EditLine *el, int c)
  */
 protected el_action_t
 /*ARGSUSED*/
-vi_to_history_line(EditLine *el, int c)
+vi_to_history_line(EditLine *el, int c __attribute__((__unused__)))
 {
 	int sv_event_no = el->el_history.eventno;
 	el_action_t rval;
@@ -994,7 +995,7 @@ vi_to_history_line(EditLine *el, int c)
  */
 protected el_action_t
 /*ARGSUSED*/
-vi_histedit(EditLine *el, int c)
+vi_histedit(EditLine *el, int c __attribute__((__unused__)))
 {
 	int fd;
 	pid_t pid;
@@ -1050,7 +1051,7 @@ vi_histedit(EditLine *el, int c)
  */
 protected el_action_t
 /*ARGSUSED*/
-vi_history_word(EditLine *el, int c)
+vi_history_word(EditLine *el, int c __attribute__((__unused__)))
 {
 	const char *wp = HIST_FIRST(el);
 	const char *wep, *wsp;
@@ -1099,7 +1100,7 @@ vi_history_word(EditLine *el, int c)
  */
 protected el_action_t
 /*ARGSUSED*/
-vi_redo(EditLine *el, int c)
+vi_redo(EditLine *el, int c __attribute__((__unused__)))
 {
 	c_redo_t *r = &el->el_chared.c_redo;
 
diff --git a/regex/main.c b/regex/main.c
index fa97ca89047..f5b591907cf 100644
--- a/regex/main.c
+++ b/regex/main.c
@@ -17,8 +17,8 @@ regoff_t startoff = 0;
 regoff_t endoff = 0;
 
 
-extern int split();
-extern void regprint();
+extern int split(char *string, char *fields[], int nfields, char *sep);
+extern void regprint(my_regex_t *r, FILE *d);
 
 /*
  - main - do the simple case, hand off to regress() for regression
@@ -145,7 +145,7 @@ FILE *in;
 		inbuf[strlen(inbuf)-1] = '\0';	/* get rid of stupid \n */
 		if (debug)
 			fprintf(stdout, "%d:\n", line);
-		nf = split(inbuf, f, MAXF, "\t\t");
+		nf = split(inbuf, f, MAXF, (char*) "\t\t");
 		if (nf < 3) {
 			fprintf(stderr, "bad input, line %d\n", line);
 			exit(1);
@@ -288,7 +288,7 @@ int opts;			/* may not match f1 */
 
 	for (i = 1; i < NSHOULD; i++)
 		should[i] = NULL;
-	nshould = split(f4, should+1, NSHOULD-1, ",");
+	nshould = split(f4, should+1, NSHOULD-1, (char*) ",");
 	if (nshould == 0) {
 		nshould = 1;
 		should[1] = (char*) "";
diff --git a/sql/ha_ndbcluster.cc b/sql/ha_ndbcluster.cc
index 9c26105546d..4f99d354754 100644
--- a/sql/ha_ndbcluster.cc
+++ b/sql/ha_ndbcluster.cc
@@ -1293,10 +1293,12 @@ int ha_ndbcluster::open_indexes(Ndb *ndb, TABLE *tab, bool ignore_error)
   for (i= 0; i < tab->s->keys; i++, key_info++, key_name++)
   {
     if ((error= add_index_handle(thd, dict, key_info, *key_name, i)))
+    {
       if (ignore_error)
         m_index[i].index= m_index[i].unique_index= NULL;
       else
         break;
+    }
     m_index[i].null_in_unique_index= FALSE;
     if (check_index_fields_not_null(key_info))
       m_index[i].null_in_unique_index= TRUE;
@@ -6265,8 +6267,8 @@ void ha_ndbcluster::get_auto_increment(ulonglong offset, ulonglong increment,
   for (;;)
   {
     Ndb_tuple_id_range_guard g(m_share);
-    if (m_skip_auto_increment &&
-        ndb->readAutoIncrementValue(m_table, g.range, auto_value) ||
+    if ((m_skip_auto_increment &&
+        ndb->readAutoIncrementValue(m_table, g.range, auto_value)) ||
         ndb->getAutoIncrementValue(m_table, g.range, auto_value, cache_size, increment, offset))
     {
       if (--retries &&
@@ -9916,8 +9918,8 @@ bool ha_ndbcluster::check_if_incompatible_data(HA_CREATE_INFO *create_info,
   {
     Field *field= table->field[i];
     const NDBCOL *col= tab->getColumn(i);
-    if (col->getStorageType() == NDB_STORAGETYPE_MEMORY && create_info->storage_media != HA_SM_MEMORY ||
-        col->getStorageType() == NDB_STORAGETYPE_DISK && create_info->storage_media != HA_SM_DISK)
+    if ((col->getStorageType() == NDB_STORAGETYPE_MEMORY && create_info->storage_media != HA_SM_MEMORY) ||
+        (col->getStorageType() == NDB_STORAGETYPE_DISK && create_info->storage_media != HA_SM_DISK))
     {
       DBUG_PRINT("info", ("Column storage media is changed"));
       DBUG_RETURN(COMPATIBLE_DATA_NO);
diff --git a/sql/log_event.cc b/sql/log_event.cc
index 91b2746ce8f..49f47edad72 100644
--- a/sql/log_event.cc
+++ b/sql/log_event.cc
@@ -8362,7 +8362,7 @@ void Table_map_log_event::pack_info(Protocol *protocol)
 
 
 #ifdef MYSQL_CLIENT
-void Table_map_log_event::print(FILE *file, PRINT_EVENT_INFO *print_event_info)
+void Table_map_log_event::print(FILE *, PRINT_EVENT_INFO *print_event_info)
 {
   if (!print_event_info->short_form)
   {
diff --git a/sql/log_event.h b/sql/log_event.h
index 662fec23639..75f2015a684 100644
--- a/sql/log_event.h
+++ b/sql/log_event.h
@@ -979,9 +979,9 @@ public:
     return (void*) my_malloc((uint)size, MYF(MY_WME|MY_FAE));
   }
 
-  static void operator delete(void *ptr, size_t size)
+  static void operator delete(void *ptr, size_t)
   {
-    my_free((uchar*) ptr, MYF(MY_WME|MY_ALLOW_ZERO_PTR));
+    my_free(ptr, MYF(MY_WME|MY_ALLOW_ZERO_PTR));
   }
 
   /* Placement version of the above operators */
diff --git a/sql/my_decimal.h b/sql/my_decimal.h
index 21669e82c44..a5077f397e3 100644
--- a/sql/my_decimal.h
+++ b/sql/my_decimal.h
@@ -308,7 +308,7 @@ int my_decimal2int(uint mask, const my_decimal *d, my_bool unsigned_flag,
 
 
 inline
-int my_decimal2double(uint mask, const my_decimal *d, double *result)
+int my_decimal2double(uint, const my_decimal *d, double *result)
 {
   /* No need to call check_result as this will always succeed */
   return decimal2double((decimal_t*) d, result);
diff --git a/sql/sql_string.h b/sql/sql_string.h
index bb7d69aeccc..b15179bcbe5 100644
--- a/sql/sql_string.h
+++ b/sql/sql_string.h
@@ -84,9 +84,13 @@ public:
   }
   static void *operator new(size_t size, MEM_ROOT *mem_root) throw ()
   { return (void*) alloc_root(mem_root, (uint) size); }
-  static void operator delete(void *ptr_arg,size_t size)
-  { TRASH(ptr_arg, size); }
-  static void operator delete(void *ptr_arg, MEM_ROOT *mem_root)
+  static void operator delete(void *ptr_arg, size_t size)
+  {
+    (void) ptr_arg;
+    (void) size;
+    TRASH(ptr_arg, size);
+  }
+  static void operator delete(void *, MEM_ROOT *)
   { /* never called */ }
   ~String() { free(); }