diff --git a/lib/std/io_printf.c3 b/lib/std/io_printf.c3
index a08d56b8e..ac9ce4938 100644
--- a/lib/std/io_printf.c3
+++ b/lib/std/io_printf.c3
@@ -69,6 +69,10 @@ private fn void! out_str(PrintParam* param, variant arg)
 		case FAILABLE:
 			unreachable();
 		case DISTINCT:
+			if (arg.type == String.typeid)
+			{
+				return out_substr(param, ((String*)arg).str());
+			}
         	return out_str(param, variant { arg.ptr, arg.type.inner });
 		case POINTER:
 			typeid inner = arg.type.inner;
diff --git a/resources/examples/binarydigits.c3 b/resources/examples/binarydigits.c3
index 3b3fd415d..2b4d49a55 100644
--- a/resources/examples/binarydigits.c3
+++ b/resources/examples/binarydigits.c3
@@ -1,13 +1,13 @@
 module binarydigits;
 import std::math;
-import libc;
+import std::io;
 fn void main()
 {
     for (int i = 0; i < 20; i++)
     {
         String s = bin(i);
         defer s.destroy();
-        libc::printf("%s\n", s.zstr());
+        io::printf("%s\n", s);
     }
 }
 
diff --git a/resources/examples/fannkuch-redux.c3 b/resources/examples/fannkuch-redux.c3
index 1c1c6e549..077fc523f 100644
--- a/resources/examples/fannkuch-redux.c3
+++ b/resources/examples/fannkuch-redux.c3
@@ -1,8 +1,8 @@
 module fannkuch;
 import std::array;
+import std::io;
+import std::math;
 import libc;
-import std::mem;
-
 
 fn int fannkuchredux(int n)
 {
@@ -46,7 +46,7 @@ fn int fannkuchredux(int n)
 		{
 			if (r == n)
 			{
-				libc::printf("%d\n", checksum);
+				io::printf("%d\n", checksum);
 				return max_flips_count;
 			}
 
@@ -71,6 +71,6 @@ fn int fannkuchredux(int n)
 fn int main(int argc, char** argv)
 {
 	int n = argc > 1 ? libc::atoi(argv[1]) : 7;
-	libc::printf("Pfannkuchen(%d) = %d\n", n, fannkuchredux(n));
+	io::printf("Pfannkuchen(%d) = %d\n", n, fannkuchredux(n));
 	return 0;
 }
\ No newline at end of file
diff --git a/resources/examples/fasta.c3 b/resources/examples/fasta.c3
index 92e9ea2d4..0adebf586 100644
--- a/resources/examples/fasta.c3
+++ b/resources/examples/fasta.c3
@@ -1,4 +1,5 @@
 module fasta;
+import std::io;
 import libc;
 
 const IM = 139968;
@@ -59,10 +60,10 @@ fn void repeat_fasta(char[] seq, int n)
 	int i = void;
 	for (i = 0; i < n; i++)
 	{
-		libc::putchar(seq[i % len]);
-		if (i % LINELEN == LINELEN - 1) libc::putchar('\n');
+		io::putchar(seq[i % len]);
+		if (i % LINELEN == LINELEN - 1) io::putchar('\n');
 	}
-	if (i % LINELEN != 0) libc::putchar('\n');
+	if (i % LINELEN != 0) io::putchar('\n');
 }
 
 fn void random_fasta(char[] symb, double[] probability, int n)
@@ -80,10 +81,10 @@ fn void random_fasta(char[] symb, double[] probability, int n)
 			v -= probability[j];
 			if (v < 0) break;
 		}
-		libc::putchar(symb[j]);
-		if (i % LINELEN == LINELEN - 1) libc::putchar('\n');
+		io::putchar(symb[j]);
+		if (i % LINELEN == LINELEN - 1) io::putchar('\n');
 	}
-	if (i % LINELEN != 0) libc::putchar('\n');
+	if (i % LINELEN != 0) io::putchar('\n');
 }
 
 fn void main(int argc, char **argv)
@@ -91,13 +92,13 @@ fn void main(int argc, char **argv)
 	int n = 1000;
 	if (argc > 1) n = libc::atoi(argv[1]);
 
-	libc::printf(">ONE Homo sapiens alu\n");
+	io::printf(">ONE Homo sapiens alu\n");
 	repeat_fasta(alu, n * 2);
 
-	libc::printf(">TWO IUB ambiguity codes\n");
+	io::printf(">TWO IUB ambiguity codes\n");
 	random_fasta(iub, iub_p, n * 3);
 
-	libc::printf(">THREE Homo sapiens frequency\n");
+	io::printf(">THREE Homo sapiens frequency\n");
 	random_fasta(homosapiens, homosapiens_p, n * 5);
 
 }
diff --git a/resources/examples/gameoflife.c3 b/resources/examples/gameoflife.c3
index 54c54b4de..e1d52f400 100644
--- a/resources/examples/gameoflife.c3
+++ b/resources/examples/gameoflife.c3
@@ -1,4 +1,6 @@
 module game_of_life;
+import std::io;
+import libc;
 
 extern fn void usleep(int time);
 
@@ -14,16 +16,16 @@ struct GameBoard
 fn void GameBoard.show(GameBoard *board)
 {
 
-	libc::printf("\e[H");
+	io::printf("\e[H");
 	char* current = board.world;
 	for (int y = 0; y < board.h; y++)
 	{
 		for (int x = 0; x < board.w; x++)
 		{
-			libc::printf(*current ? "\e[07m  \e[m" : "  ");
+			io::printf(*current ? "\e[07m  \e[m" : "  ");
 			current++;
 		}
-		libc::printf("\e[E");
+		io::printf("\e[E");
 	}
 	libc::fflush(libc::stdout());
 }
@@ -67,8 +69,8 @@ fn int main(int c, char** v)
 	GameBoard board;
 	board.w = w;
 	board.h = h;
-	board.world = libc::malloc((ulong)(h * w));
-	board.temp = libc::malloc((ulong)(h * w));
+	board.world = mem::alloc((ulong)(h * w));
+	board.temp = mem::alloc((ulong)(h * w));
 
 	for (int i = h * w - 1; i >= 0; i--)
 	{
diff --git a/resources/examples/levenshtein.c3 b/resources/examples/levenshtein.c3
index 737ff7abf..d7caa695f 100644
--- a/resources/examples/levenshtein.c3
+++ b/resources/examples/levenshtein.c3
@@ -22,5 +22,5 @@ fn int levenshtein(char[] s, char[] t)
 	int b = levenshtein(s, t[0..^2]);
 	int c = levenshtein(s[0..^2], t);
 
-	return @min(@min(a, b), c) + 1;
+	return min(min(a, b), c) + 1;
 }
\ No newline at end of file
diff --git a/resources/rosettacode/antiprime.c3 b/resources/rosettacode/antiprime.c3
index 1f7f52551..ceb4850d4 100644
--- a/resources/rosettacode/antiprime.c3
+++ b/resources/rosettacode/antiprime.c3
@@ -1,8 +1,6 @@
 module antiprime;
 import std::io;
 
-extern fn int printf(char* message, ...);
-
 fn int countDivisors(int n)
 {
     if (n < 2) return 1;
@@ -25,7 +23,7 @@ fn int main()
         int d = countDivisors(n);
         if (d > maxDiv)
         {
-            printf("%d ", n);
+            io::printf("%d ", n);
             maxDiv = d;
             count++;
         }