From a383b40df9a38a1f562566bb30437881a4c80477 Mon Sep 17 00:00:00 2001
From: Jordan Orelli <jordanorelli@gmail.com>
Date: Sat, 26 Dec 2020 05:14:09 +0000
Subject: [PATCH] recognize some manner of EOF in cat

---
 cat.zig | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/cat.zig b/cat.zig
index ce6e0c7..b054e8f 100644
--- a/cat.zig
+++ b/cat.zig
@@ -1,5 +1,6 @@
 const std = @import("std");
 const page_allocator = std.heap.page_allocator;
+const format = std.fmt.format;
 
 pub fn main() !void {
     const stdin = std.io.getStdIn();
@@ -11,8 +12,12 @@ pub fn main() !void {
 
     while (true) {
         var n = stdin.read(page) catch |err| {
+            try stderr.writer().print("Error: {}\n", .{err});
             break;
         };
+        if (n <= 0) {
+            break;
+        }
         _ = try stdout.write(page[0..n]);
     }
 }