From fb8de287bec0aa71b9b6714a73e15c829ad74106 Mon Sep 17 00:00:00 2001
From: mrdudz <mrdudz@users.noreply.github.com>
Date: Thu, 28 Jul 2022 01:50:54 +0200
Subject: [PATCH] test related to pr #1800

---
 test/val/pr1800.c | 73 +++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 73 insertions(+)
 create mode 100644 test/val/pr1800.c

diff --git a/test/val/pr1800.c b/test/val/pr1800.c
new file mode 100644
index 000000000..cc8a60eea
--- /dev/null
+++ b/test/val/pr1800.c
@@ -0,0 +1,73 @@
+
+/* Compiler outputs errors for valid code #1788 */
+/* (rest tested later below) */
+# /* Comment */
+
+/* Unexpected "Error: Illegal indirection" under #if 0 #1769 */
+#if 0
+#if x ** 1
+#endif
+#endif
+
+/* Unexpected "Error: Division by zero" #1768 */
+#if 1 || (8 / 0)
+#endif
+
+/* Preprocessor fixes #1800 */
+
+#/*
+comment*/define __ATARI__ 1
+# /*comment*/
+
+#/*
+*/define /**/M(/**/x, /*
+*/y)/*
+*/(x+/*
+*/y)
+
+#if M(-1, 1) != 0
+#error M(x,y) error!
+#endif
+
+#warning/**//**/asd/**/)  fgh
+#warning
+
+#if 'z' - 'a' != 25
+#if x ** 1
+#endif
+#endif
+
+#if -1 < 0xF0000000 * 0
+/* Note: this doesn't fail with cc65 as 0xF0000000 is an unsigned integer for cc65 */
+#error "Fails with most non-cc65 compilers"
+#endif
+
+#if !+-0, (1U >> -31), x != (2L << -1)
+#warning "/**/no problem"
+#if 65536L * 32768L > -1U && 1 % 0
+#error "error2"
+#endif
+#if -1 > 0U ? y != y : 1/0
+#error "??"
+#if d<(sasa
+#endif
+#endif
+#endif
+
+#if !defined(__ATARI__)
+#error "__ATARI__" is undefined?!
+#endif
+
+#if !__ATARI__
+#error "__ATARI__" == 0?!
+#endif
+
+#ifndef __ATARI__
+#error __ATARI__ is undefined?!
+#endif
+
+int main(void)
+{
+    /* nope */
+    return 0;
+}