tweaks: rename two empty functions, to be more to the point

Also, move them to global.c, where all the other empty functions are.

src/global.c

@@ -291,6 +291,14 @@ void regexp_void(void)
 void backwards_void(void)
 {
 }
+#ifdef ENABLE_HISTORIES
+void get_older_item(void)
+{
+}
+void get_newer_item(void)
+{
+}
+#endif
 void flip_replace(void)
 {
 }
@@ -851,9 +859,9 @@ void shortcut_init(void)
 		N_("No Replace"), WITHORSANS(whereis_gist), BLANKAFTER, VIEW);
 
 #ifdef ENABLE_HISTORIES
-	add_to_funcs(get_history_older_void, MWHEREIS|MREPLACE|MREPLACEWITH|MWHEREISFILE,
+	add_to_funcs(get_older_item, MWHEREIS|MREPLACE|MREPLACEWITH|MWHEREISFILE,
 		N_("Older"), WITHORSANS(older_gist), TOGETHER, VIEW);
-	add_to_funcs(get_history_newer_void, MWHEREIS|MREPLACE|MREPLACEWITH|MWHEREISFILE,
+	add_to_funcs(get_newer_item, MWHEREIS|MREPLACE|MREPLACEWITH|MWHEREISFILE,
 		N_("Newer"), WITHORSANS(newer_gist), BLANKAFTER, VIEW);
 #endif
 
@@ -1426,17 +1434,17 @@ void shortcut_init(void)
 	add_to_sclist(MWHEREIS|MREPLACE, "^R", 0, flip_replace, 0);
 	add_to_sclist(MWHEREIS|MGOTOLINE, "^T", 0, flip_goto, 0);
 #ifdef ENABLE_HISTORIES
-	add_to_sclist(MWHEREIS|MREPLACE|MREPLACEWITH|MWHEREISFILE|MFINDINHELP|MEXECUTE, "^P", 0, get_history_older_void, 0);
+	add_to_sclist(MWHEREIS|MREPLACE|MREPLACEWITH|MWHEREISFILE|MFINDINHELP|MEXECUTE, "^P", 0, get_older_item, 0);
-	add_to_sclist(MWHEREIS|MREPLACE|MREPLACEWITH|MWHEREISFILE|MFINDINHELP|MEXECUTE, "^N", 0, get_history_newer_void, 0);
+	add_to_sclist(MWHEREIS|MREPLACE|MREPLACEWITH|MWHEREISFILE|MFINDINHELP|MEXECUTE, "^N", 0, get_newer_item, 0);
 #ifdef ENABLE_UTF8
 	if (using_utf8()) {
-		add_to_sclist(MWHEREIS|MREPLACE|MREPLACEWITH|MWHEREISFILE|MFINDINHELP|MEXECUTE, "\xE2\x96\xb4", KEY_UP, get_history_older_void, 0);
+		add_to_sclist(MWHEREIS|MREPLACE|MREPLACEWITH|MWHEREISFILE|MFINDINHELP|MEXECUTE, "\xE2\x96\xb4", KEY_UP, get_older_item, 0);
-		add_to_sclist(MWHEREIS|MREPLACE|MREPLACEWITH|MWHEREISFILE|MFINDINHELP|MEXECUTE, "\xE2\x96\xbe", KEY_DOWN, get_history_newer_void, 0);
+		add_to_sclist(MWHEREIS|MREPLACE|MREPLACEWITH|MWHEREISFILE|MFINDINHELP|MEXECUTE, "\xE2\x96\xbe", KEY_DOWN, get_newer_item, 0);
 	} else
 #endif
 	{
-		add_to_sclist(MWHEREIS|MREPLACE|MREPLACEWITH|MWHEREISFILE|MFINDINHELP|MEXECUTE, "Up", KEY_UP, get_history_older_void, 0);
+		add_to_sclist(MWHEREIS|MREPLACE|MREPLACEWITH|MWHEREISFILE|MFINDINHELP|MEXECUTE, "Up", KEY_UP, get_older_item, 0);
-		add_to_sclist(MWHEREIS|MREPLACE|MREPLACEWITH|MWHEREISFILE|MFINDINHELP|MEXECUTE, "Down", KEY_DOWN, get_history_newer_void, 0);
+		add_to_sclist(MWHEREIS|MREPLACE|MREPLACEWITH|MWHEREISFILE|MFINDINHELP|MEXECUTE, "Down", KEY_DOWN, get_newer_item, 0);
 	}
 #endif
 #ifdef ENABLE_JUSTIFY

src/history.c

@@ -145,14 +145,6 @@ void update_history(linestruct **item, const char *text)
 	*item = *hbot;
 }
 
-/* Two empty placeholder functions. */
-void get_history_older_void(void)
-{
-}
-void get_history_newer_void(void)
-{
-}
-
 #ifdef ENABLE_TABCOMP
 /* Go backward through one of three history lists, starting at its item h,
  * searching for a string that is a tab completion of the given string s,

src/prompt.c

@@ -304,8 +304,8 @@ int do_statusbar_input(bool *finished)
 		if (shortcut->func == do_tab || shortcut->func == do_enter)
 			;
 #ifdef ENABLE_HISTORIES
-		else if (shortcut->func == get_history_older_void ||
+		else if (shortcut->func == get_older_item ||
-					shortcut->func == get_history_newer_void)
+					shortcut->func == get_newer_item)
 			;
 #endif
 		else if (shortcut->func == do_left)
@@ -504,7 +504,7 @@ functionptrtype acquire_an_answer(int *actual, bool *listed,
 		} else
 #endif /* ENABLE_TABCOMP */
 #ifdef ENABLE_HISTORIES
-		if (func == get_history_older_void) {
+		if (func == get_older_item) {
 			if (history_list != NULL) {
 				/* If we're scrolling up at the bottom of the history list
 				 * and answer isn't blank, save answer in magichistory. */
@@ -519,7 +519,7 @@ functionptrtype acquire_an_answer(int *actual, bool *listed,
 					typing_x = strlen(answer);
 				}
 			}
-		} else if (func == get_history_newer_void) {
+		} else if (func == get_newer_item) {
 			if (history_list != NULL) {
 				/* Get the newer search from the history list and save it in
 				 * answer.  If there is no newer search, don't do anything. */

src/prototypes.h

@@ -336,8 +336,6 @@ void do_help(void);
 void history_init(void);
 void history_reset(const linestruct *list);
 void update_history(linestruct **item, const char *text);
-void get_history_older_void(void);
-void get_history_newer_void(void);
 #ifdef ENABLE_TABCOMP
 char *get_history_completion(linestruct **h, char *s, size_t len);
 #endif
@@ -632,6 +630,10 @@ void do_credits(void);
 void case_sens_void(void);
 void regexp_void(void);
 void backwards_void(void);
+#ifdef ENABLE_HISTORIES
+void get_older_item(void);
+void get_newer_item(void);
+#endif
 void flip_replace(void);
 void flip_goto(void);
 #ifdef ENABLE_BROWSER

src/rcfile.c

@@ -409,9 +409,9 @@ keystruct *strtosc(const char *input)
 		s->func = flip_goto;
 #ifdef ENABLE_HISTORIES
 	else if (!strcmp(input, "older"))
-		s->func = get_history_older_void;
+		s->func = get_older_item;
 	else if (!strcmp(input, "newer"))
-		s->func = get_history_newer_void;
+		s->func = get_newer_item;
 #endif
 #ifndef NANO_TINY
 	else if (!strcmp(input, "dosformat"))