main returns %void

example/cat/main.zig

@@ -4,14 +4,11 @@ import "std.zig";
 
 // Things to do to make this work:
 // * var args printing
-// * %void type
+// * update std API
 // * defer
 // * %return
 // * %% operator
-// * make main return %void
-// * how to reference error values %.Invalid
 // * cast err type to string
-// * update std API
 
 pub %.Invalid;
 

example/hello_world/hello.zig

@@ -2,8 +2,7 @@ export executable "hello";
 
 import "std.zig";
 
-pub fn main(args: [][]u8) i32 => {
+pub fn main(args: [][]u8) %void => {
     //stderr.print_str("Hello, world!\n");
     print_str("Hello, world!\n");
-    return 0;
 }

example/hello_world/hello_libc.zig

@@ -5,7 +5,7 @@ extern {
     fn printf(__format: &const u8, ...) i32;
 }
 
-export fn main(argc: i32, argv: &&u8, env: &&u8) i32 => {
+export fn main(argc: i32, argv: &&u8) i32 => {
     printf(c"Hello, world!\n");
     return 0;
 }