commit 3ce2e81

X11: return NULL on init failure

 1@@ -11,10 +11,16 @@ MausWindow* maus_init(const char* title, int x, int y, int width, int height)
 2 		maus_log(stderr, "backend auto-selected: X11");
 3 
 4 	Display* d = XOpenDisplay(NULL);
 5-	if (!d)
 6-		maus_die("could not open X11 display");
 7+	if (!d) {
 8+		maus_die("failed to open X11 display");
 9+		return NULL;
10+	}
11 
12 	uint32_t* px = malloc(sizeof(uint32_t)*width*height);
13+	if (!px) {
14+		maus_log(stderr, "failed to allocate %dx%d pixel grid", width, height);
15+		return NULL;
16+	}
17 
18 	MausWindow* win = malloc(sizeof(MausWindow));
19 	win->display = d;

1@@ -38,7 +38,7 @@
2 /* log message to output `fd` and die */
3 void maus_die(const char* fmt, ...);
4 
5-/* initialise and create the window */
6+/* initialise and create the window. returns NULL on fail */
7 MausWindow* maus_init(const char* title, int x, int y, int width, int height);
8 
9 /* log message to output `fd` */