Update with changes to the file API and other minor fixups.

day10.c3

@@ -18,7 +18,7 @@ fn void draw_crt(bool[40][6]* crt)
 		{
 			io::print(pixel ? "#" : " ");
 		}
-		io::println();
+		io::printn();
 	}
 }
 
@@ -34,8 +34,7 @@ fn void update_crt(bool[40][6]* crt, int cycle, int x)
 
 fn void part2()
 {
-	File f;
-	f.open("code.txt", "rb")!!;
+	File f = file::open("code.txt", "rb")!!;
 	defer (void)f.close();
 	bool[40][6] crt;
 	int cycle = 0;
@@ -45,7 +44,7 @@ fn void part2()
 		@pool()
 		{
 			String line = f.tgetline();
-            String[] commands = str::tsplit(line, " ");
+            String[] commands = line.tsplit(" ");
             switch (commands[0])
             {
                 case "noop":
@@ -66,8 +65,7 @@ fn void part2()
 }
 fn void part1()
 {
-	File f;
-	f.open("code.txt", "rb")!!;
+	File f = file::open("code.txt", "rb")!!;
 	defer (void)f.close();
 	int cycle = 0;
 	int x = 1;
@@ -77,7 +75,7 @@ fn void part1()
 		@pool()
 		{
 			String line = f.tgetline();
-            String[] commands = str::tsplit(line, " ");
+            String[] commands = line.tsplit(" ");
             switch (commands[0])
             {
                 case "noop":

day11.c3

@@ -25,8 +25,7 @@ fn void print_monkeys(Monkey[] monkeys)
 
 fn Monkey[] load_monkeys(Monkey[] monkeys)
 {
-	File f;
-	f.open("monkey.txt", "rb")!!;
+	File f = file::open("monkey.txt", "rb")!!;
 	defer (void)f.close();
 	int max_monkey = 0;
 	while (!f.eof())
@@ -36,26 +35,26 @@ fn Monkey[] load_monkeys(Monkey[] monkeys)
 			// Very lazy parsing, assuming a lot about the format.
 			String line = f.tgetline();
 			if (line.len == 0) continue;
-            String[] commands = str::tsplit(line, " ");
+            String[] commands = line.tsplit(" ");
             int monkey_num = str::to_int(commands[1][..^2])!!;
             if (monkey_num > max_monkey) max_monkey = monkey_num;
             Monkey* active_monkey = &monkeys[monkey_num];
 			line = f.tgetline();
-			String[] items = str::tsplit(str::tsplit(line, ": ")[1], ", ");
+			String[] items = line.tsplit(": ")[1].tsplit(", ");
             foreach (String item : items)
             {
 				active_monkey.items[active_monkey.item_count++] = str::to_int(item)!!;
             }
 			line = f.tgetline();
-			String[] op = str::tsplit(str::tsplit(line, "= old ")[1], " ");
+			String[] op = line.tsplit("= old ")[1].tsplit(" ");
 			active_monkey.op_is_mult = op[0][0] == '*';
 			active_monkey.other_op = op[1] == "old" ? -1 : str::to_int(op[1])!!;
 			line = f.tgetline();
-			active_monkey.test = str::to_int(str::tsplit(line, "by ")[1])!!;
+			active_monkey.test = str::to_int(line.tsplit("by ")[1])!!;
 			line = f.tgetline();
-			active_monkey.on_true = str::to_int(str::tsplit(line, "key ")[1])!!;
+			active_monkey.on_true = str::to_int(line.tsplit("key ")[1])!!;
 			line = f.tgetline();
-			active_monkey.on_false = str::to_int(str::tsplit(line, "key ")[1])!!;
+			active_monkey.on_false = str::to_int(line.tsplit("key ")[1])!!;
         };
     }
     return monkeys[..max_monkey];

day12.c3

@@ -27,7 +27,7 @@ fn WalkedMap* Map.create_temp_empty_walked_map(Map* map)
 {
 	usz height = map.map.len();
 	usz width = map.map.get(0).len;
-	WalkedMap *w = talloc(WalkedMap);
+	WalkedMap *w = tmalloc(WalkedMap);
 	w.walked = tcalloc(int.sizeof * height * width);
 	w.size = { (int)width, (int)height };
 	return w;
@@ -50,7 +50,7 @@ fn bool WalkedMap.walk(WalkedMap* this, int[<2>] loc, int steps)
 
 fn void WalkedMap.show(WalkedMap* this)
 {
-	io::println("-----------------");
+	io::printn("-----------------");
 	for (int y = 0; y < this.size[1]; y++)
 	{
 		io::printf("|");
@@ -59,14 +59,13 @@ fn void WalkedMap.show(WalkedMap* this)
 			int val = this.walked[x + y * this.size[0]];
 			io::printf("%c", val ? val + '0' - 1 : ' ');
 		}
-		io::println("|");
+		io::printn("|");
 	}
 }
 
 fn Map* load_heightmap()
 {
-	File f;
-	f.open("heightmap.txt", "rb")!!;
+	File f = file::open("heightmap.txt", "rb")!!;
 	defer (void)f.close();
 	Map* map = malloc(Map);
 	map.map.init();

day13.c3

@@ -110,8 +110,7 @@ fn Packet* packet_from_line(String line)
 }
 fn PacketPairs* load_packets()
 {
-	File f;
-	f.open("packets.txt", "rb")!!;
+	File f = file::open("packets.txt", "rb")!!;
 	defer (void)f.close();
 	PacketPairs* packet = malloc(PacketPairs);
 	packet.init();

day14.c3

@@ -20,14 +20,13 @@ enum EnvType
 
 fn int[<2>]! str_to_coord(String str)
 {
-	String[] parts = str::tsplit(str, ",");
+	String[] parts = str.tsplit(",");
 	return { str::to_int(parts[0]), str::to_int(parts[1]) };
 }
 
 fn Environment* load_environment(EnvType type)
 {
-	File f;
-	f.open("cave.txt", "rb")!!;
+	File f = file::open("cave.txt", "rb")!!;
 	defer (void)f.close();
 	Environment* env = calloc(Environment.sizeof);
 	int max_y = 0;
@@ -37,7 +36,7 @@ fn Environment* load_environment(EnvType type)
 		{
 			String line = f.tgetline();
 			int[<2>] last = { 0, 0 };
-			foreach (part : str::tsplit(line, " -> "))
+			foreach (part : line.tsplit(" -> "))
 			{
 				int[<2>] next = str_to_coord(part)!!;
 				if (next[1] > max_y) max_y = next[1];

day15.c3

@@ -8,13 +8,12 @@ define CoordPairList = List<int[<2>][2]>;
 
 fn int[<2>]! parse_coord(String s)
 {
-	String[] parts = str::tsplit(s, ", y=");
+	String[] parts = s.tsplit(", y=");
 	return { str::to_int(parts[0]), str::to_int(parts[1]) };
 }
 fn CoordPairList load_sensors()
 {
-	File f;
-	f.open("sensor.txt", "rb")!!;
+	File f = file::open("sensor.txt", "rb")!!;
 	defer (void)f.close();
 	CoordPairList list;
 	list.init();
@@ -24,7 +23,7 @@ fn CoordPairList load_sensors()
 		{
 			String line = f.tgetline();
 			line = line["Sensor at x=".len..];
-			String[] parts = str::tsplit(line, ": closest beacon is at x=");
+			String[] parts = line.tsplit(": closest beacon is at x=");
 			int[<2>] sensor_at = parse_coord(parts[0])!!;
 			int[<2>] beacon_at = parse_coord(parts[1])!!;
 			list.append( { sensor_at, beacon_at });
@@ -118,7 +117,7 @@ fn void part2(CoordPairList list)
 			}
 		}
 	}
-	io::println("No beacon found.");
+	io::printn("No beacon found.");
 }
 
 fn void main()

day16.c3

@@ -34,17 +34,16 @@ fn void populate_tunnels(Valve[] valves, int i, Valve* v, int tunnel, int cost)
 
 fn Valve[] load_valves(Valve[100]* available_slots)
 {
-	File f;
-	f.open("valves.txt", "rb")!!;
+	File f = file::open("valves.txt", "rb")!!;
 	defer (void)f.close();
 	int count = 0;
 	while (!f.eof())
 	{
 		@pool()
 		{
 			String line = f.tgetline();
-			String[] parts = str::tsplit(line, " ");
-			String name = str::copy(parts[1]);
+			String[] parts = line.tsplit(" ");
+			String name = parts[1].copy();
 			String rate_part = parts[4];
 			int val = v.@get_or_set(name, (int)v.count);
 			Valve *valve_entry = &(*available_slots)[val];
@@ -60,7 +59,7 @@ fn Valve[] load_valves(Valve[100]* available_slots)
 				{
 					valve = valve[..^2];
 				}
-				val = v.@get_or_set(str::copy(valve), (int)v.count);
+				val = v.@get_or_set(valve.copy(), (int)v.count);
 				valve_entry.tunnels[valve_entry.tunnel_count++] = val;
 			}
        };

day17.c3

@@ -34,8 +34,7 @@ macro bool StateCache.equals(StateCache* cache, StateCache other)
 
 fn DString load_jets()
 {
-	File f;
-	f.open("jets.txt", "rb")!!;
+	File f = file::open("jets.txt", "rb")!!;
 	defer (void)f.close();
 	return f.getline();
 }
@@ -156,17 +155,17 @@ fn void land_shape(Shape* shape, int[<2>] location)
 
 fn void draw_field()
 {
-	io::println("+-----+");
+	io::printn("+-----+");
 	for (int i = find_height(); i >= 0; i--)
 	{
 		GameRow row = game[i];
 		for (int j = 0; j < 7; j++)
 		{
 			io::putchar(row.bit(j) ? '#' : '.');
 		}
-		io::println();
+		io::printn();
 	}
-	io::println("+-----+");
+	io::printn("+-----+");
 }
 
 macro long adjust_lowest_bounds()
@@ -273,7 +272,7 @@ fn void solve(String winds, long rocks)
 fn void main()
 {
 	DString s = load_jets();
-	defer s.destroy();
+	defer s.free();
 	solve(s.str(), 2022);
 	solve(s.str(), 1000000000000i64);
 }

day18.c3

@@ -9,14 +9,13 @@ int[MAX][MAX][MAX] locations;
 
 fn void load_lava()
 {
-	File f;
-	f.open("lava.txt", "rb")!!;
+	File f = file::open("lava.txt", "rb")!!;
 	defer (void)f.close();
 	while (!f.eof())
 	{
 		@pool()
 		{
-			String[] parts = str::tsplit(f.tgetline(), ",");
+			String[] parts = f.tgetline().tsplit(",");
 			locations[str::to_int(parts[0])!!][str::to_int(parts[1])!!][str::to_int(parts[2])!!] = 7;
 		};
 	}

day19.c3

@@ -31,8 +31,7 @@ struct GameState
 
 fn void load_blueprints()
 {
-	File f;
-	f.open("blueprint.txt", "rb")!!;
+	File f = file::open("blueprint.txt", "rb")!!;
 	blueprints.init();
 	defer (void)f.close();
 	while (!f.eof())
@@ -41,18 +40,18 @@ fn void load_blueprints()
 		{
 			Blueprint print;
 			String line = f.tgetline();
-			String[] split = str::tsplit(line, "Each ore robot costs ");
-			split = str::tsplit(split[1], " ore. Each clay robot costs ");
+			String[] split = line.tsplit("Each ore robot costs ");
+			split = split[1].tsplit(" ore. Each clay robot costs ");
 			print.ore_cost = { [ORE] = str::to_int(split[0])!! };
-			split = str::tsplit(split[1], " ore. Each obsidian robot costs ");
+			split = split[1].tsplit(" ore. Each obsidian robot costs ");
 			print.clay_cost = { [ORE] = str::to_int(split[0])!! };
-			split = str::tsplit(split[1], " clay. Each geode robot costs ");
-			String[] split2 = str::tsplit(split[0], " ore and ");
+			split = split[1].tsplit(" clay. Each geode robot costs ");
+			String[] split2 = split[0].tsplit(" ore and ");
 			print.obsidian_cost = {
 				[ORE] = str::to_int(split2[0])!!,
 				[CLAY] = str::to_int(split2[1])!!
  			};
-			split2 = str::tsplit(split[1], " ore and ");
+			split2 = split[1].tsplit(" ore and ");
 			print.geode_cost = {
 				[ORE] = str::to_int(split2[0])!!,
 				[OBSIDIAN] = str::to_int(split2[1][..^11])!!

day1_1.c3

@@ -3,8 +3,7 @@ import libc;
 
 fn void main()
 {
-	File f;
-	f.open("calories.txt", "rb")!!;
+	File f = file::open("calories.txt", "rb")!!;
 	defer (void)f.close();
 	usz current_entry = 0;
 	usz max_entry = 0;

day1_2.c3

@@ -20,8 +20,7 @@ fn void update_max(int entry)
 
 fn void main()
 {
-	File f;
-	f.open("calories.txt", "rb")!!;
+	File f = file::open("calories.txt", "rb")!!;
 	defer (void)f.close();
 	int current_entry = 0;
 	while (!f.eof())

day2.c3

@@ -49,8 +49,7 @@ fn Select! selectFromString(String line)
 
 fn void part1()
 {
-	File f;
-	f.open("solution.txt", "rb")!!;
+	File f = file::open("solution.txt", "rb")!!;
 	defer (void)f.close();
 	int points = 0;
 	while (!f.eof())
@@ -79,8 +78,7 @@ fn void part1()
 
 fn void part2()
 {
-	File f;
-	f.open("solution.txt", "rb")!!;
+	File f = file::open("solution.txt", "rb")!!;
 	defer (void)f.close();
 	int points = 0;
 	while (!f.eof())

day20.c3

@@ -8,8 +8,7 @@ define LongList = List<long>;
 
 fn void load_crypto(LongList* list, LongList* pos, long key)
 {
-	File f;
-	f.open("crypto.txt", "rb")!!;
+	File f = file::open("crypto.txt", "rb")!!;
 	defer (void)f.close();
 	while (!f.eof())
 	{
@@ -37,7 +36,7 @@ macro print_order(LongList pos)
    	{
 		io::printf("%s ", x);
 	}
-    io::println();
+    io::printn();
 }
 
 fn void print_list(LongList list, LongList pos)
@@ -48,7 +47,7 @@ fn void print_list(LongList list, LongList pos)
 	{
        	io::printf("%s ", value_at_pos(list, pos, i));
 	}
-    io::println();
+    io::printn();
 }