From c14dab7f3a1cf72619fadce9b81b55426dc0b32e Mon Sep 17 00:00:00 2001
From: sinanmohd <sinan@firemail.cc>
Date: Mon, 10 Apr 2023 07:45:35 +0530
Subject: 5.19: initial commit, make use of makefiles and split main into
 multiple files

---
 5.19/getch.c | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)
 create mode 100644 5.19/getch.c

(limited to '5.19/getch.c')

diff --git a/5.19/getch.c b/5.19/getch.c
new file mode 100644
index 0000000..e41671e
--- /dev/null
+++ b/5.19/getch.c
@@ -0,0 +1,22 @@
+#include <stdlib.h>
+#include <stdio.h>
+#include "err.h"
+#include "getch.h"
+
+#define MAXBUFF	100
+
+char buff[MAXBUFF];
+static size_t top;
+
+void ungetch(char c)
+{
+	if (top < MAXBUFF)
+		buff[top++] = c;
+	else
+		err("buff: stack overflow");
+}
+
+char getch(void)
+{
+	return (top > 0) ? buff[--top] : getchar();
+}
-- 
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