From 7286f3ac3fe731cf40f596bf7115dcfcf9b5f736 Mon Sep 17 00:00:00 2001
From: Marco Thomas <github@marcothms.de>
Date: Tue, 22 Apr 2025 09:20:49 +0900
Subject: [PATCH] fix: print in single line

---
 src/main.rs | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/src/main.rs b/src/main.rs
index e78bbd9..4476393 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -13,7 +13,7 @@ fn interpret(code: &str) {
             '<' => head -= 1,
             '+' => memory[head] = memory[head].wrapping_add(1),
             '-' => memory[head] = memory[head].wrapping_sub(1),
-            '.' => println!("{}", memory[head]),
+            '.' => print!("{}", memory[head] as char),
             ',' => {
                 let mut input_buf = [0u8; 1];
                 if io::stdin().read_exact(&mut input_buf).is_ok() {
@@ -50,6 +50,8 @@ fn interpret(code: &str) {
                 if memory[pc] != 0 {
                     if let Some(start_pc) = loop_stack.last() {
                         pc = *start_pc;
+                    } else {
+                        panic!("Loop stack empty, but still called!")
                     }
                 } else {
                     // loop done, continue normally
@@ -60,10 +62,11 @@ fn interpret(code: &str) {
         }
         pc += 1;
     }
+    print!("\n");
 }
 
 fn main() {
-    let code = "+++++++++[>++++++++<-]>.";
-    let hello_world = "++++++++[>++++[>++>+++>+++>+<<<<-]>+>+>->>+[<]<-]>>.>---.+++++++..+++.>>.<-.<.+++.------.--------.>>+.>++.";
-    interpret(hello_world);
+    // let code = "+++++++++[>++++++++<-]>.";
+    let code = "++++++++[>++++[>++>+++>+++>+<<<<-]>+>+>->>+[<]<-]>>.>---.+++++++..+++.>>.<-.<.+++.------.--------.>>+.>++.";
+    interpret(code);
 }