Use void for empty argument lists

Makefile

@@ -1,4 +1,4 @@
-VERSION = git-20111011
+VERSION = git-20111012
 
 CC      = gcc
 CFLAGS  = -Wall -pedantic -O2

commands.c

@@ -28,13 +28,13 @@
 #include "thumbs.h"
 #include "util.h"
 
-void cleanup();
+void cleanup(void);
 void remove_file(int, bool);
 void load_image(int);
-void redraw();
-void reset_cursor();
-void animate();
-void slideshow();
+void redraw(void);
+void reset_cursor(void);
+void animate(void);
+void slideshow(void);
 void set_timeout(timeout_f, int, bool);
 void reset_timeout(timeout_f);
 

main.c

@@ -49,10 +49,10 @@ typedef struct {
 } timeout_t;
 
 /* timeout handler functions: */
-void redraw();
-void reset_cursor();
-void animate();
-void slideshow();
+void redraw(void);
+void reset_cursor(void);
+void animate(void);
+void slideshow(void);
 
 appmode_t mode;
 img_t img;
@@ -72,7 +72,7 @@ timeout_t timeouts[] = {
 	{ { 0, 0 }, false, slideshow },
 };
 
-void cleanup() {
+void cleanup(void) {
 	static bool in = false;
 
 	if (!in) {
@@ -216,7 +216,7 @@ void load_image(int new) {
 		reset_timeout(animate);
 }
 
-void update_title() {
+void update_title(void) {
 	int n;
 	char sshow_info[16];
 	char frame_info[16];
@@ -260,7 +260,7 @@ void update_title() {
 	win_set_title(&win, win_title);
 }
 
-void redraw() {
+void redraw(void) {
 	if (mode == MODE_IMAGE) {
 		img_render(&img);
 		if (img.slideshow && !img.multi.animate) {
@@ -277,7 +277,7 @@ void redraw() {
 	reset_cursor();
 }
 
-void reset_cursor() {
+void reset_cursor(void) {
 	int i;
 	cursor_t cursor = CURSOR_NONE;
 
@@ -298,14 +298,14 @@ void reset_cursor() {
 	win_set_cursor(&win, cursor);
 }
 
-void animate() {
+void animate(void) {
 	if (img_frame_animate(&img, false)) {
 		redraw();
 		set_timeout(animate, img.multi.frames[img.multi.sel].delay, true);
 	}
 }
 
-void slideshow() {
+void slideshow(void) {
 	if (mode == MODE_IMAGE && !img.multi.animate) {
 		if (fileidx + 1 < filecnt) {
 			load_image(fileidx + 1);
@@ -390,7 +390,7 @@ void on_buttonpress(XButtonEvent *bev) {
 	}
 }
 
-void run() {
+void run(void) {
 	int xfd;
 	fd_set fds;
 	struct timeval timeout;

options.c

@@ -32,12 +32,12 @@
 options_t _options;
 const options_t *options = (const options_t*) &_options;
 
-void print_usage() {
+void print_usage(void) {
 	printf("usage: sxiv [-cdFfhpqrstvZ] [-g GEOMETRY] [-n NUM] "
 	       "[-z ZOOM] FILES...\n");
 }
 
-void print_version() {
+void print_version(void) {
 	printf("sxiv %s - Simple X Image Viewer\n", VERSION);
 	printf("Additional features included (+) or not (-): %s, %s\n",
 #if EXIF_SUPPORT

options.h

@@ -48,8 +48,8 @@ typedef struct {
 
 extern const options_t *options;
 
-void print_usage();
-void print_version();
+void print_usage(void);
+void print_version(void);
 
 void parse_options(int, char**);
 

thumbs.c

@@ -38,7 +38,7 @@ void exif_auto_orientate(const fileinfo_t*);
 const int thumb_dim = THUMB_SIZE + 10;
 char *cache_dir = NULL;
 
-bool tns_cache_enabled() {
+bool tns_cache_enabled(void) {
 	struct stat stats;
 
 	return cache_dir != NULL && stat(cache_dir, &stats) == 0 &&

util.c

@@ -34,7 +34,7 @@ enum {
 	FNAME_LEN = 1024
 };
 
-void cleanup();
+void cleanup(void);
 
 void* s_malloc(size_t size) {
 	void *ptr;