From 30ff2bdc6b9f65933369d0ddde1e5fba4d44bdce Mon Sep 17 00:00:00 2001
From: cosineblast <55855728+cosineblast@users.noreply.github.com>
Date: Wed, 17 Jan 2024 15:05:27 -0300
Subject: [PATCH] Add pragma once tests

---
 test/val/pragma-once-sample-link.h |  1 +
 test/val/pragma-once-sample.h      | 21 +++++++++++++++++++++
 test/val/pragma-once-test.c        | 27 +++++++++++++++++++++++++++
 3 files changed, 49 insertions(+)
 create mode 120000 test/val/pragma-once-sample-link.h
 create mode 100644 test/val/pragma-once-sample.h
 create mode 100644 test/val/pragma-once-test.c

diff --git a/test/val/pragma-once-sample-link.h b/test/val/pragma-once-sample-link.h
new file mode 120000
index 000000000..d19d8c541
--- /dev/null
+++ b/test/val/pragma-once-sample-link.h
@@ -0,0 +1 @@
+pragma-once-sample.h
\ No newline at end of file
diff --git a/test/val/pragma-once-sample.h b/test/val/pragma-once-sample.h
new file mode 100644
index 000000000..477c7c8bd
--- /dev/null
+++ b/test/val/pragma-once-sample.h
@@ -0,0 +1,21 @@
+/*
+** !!DESCRIPTION!! Simple #pragma once directive tests
+** !!ORIGIN!!      cc65 regression tests
+** !!LICENCE!!     Public Domain
+*/
+
+#ifdef FILE_INCLUDED
+
+#error "This file should not have been included twice"
+#define INCLUDED_TWICE
+
+#else
+
+#define FILE_INCLUDED
+
+#endif
+
+
+/* a pragma once directive should work regardless of where it is located in
+   the file, as long as it is seen by the preprocessor */
+#pragma once
diff --git a/test/val/pragma-once-test.c b/test/val/pragma-once-test.c
new file mode 100644
index 000000000..e85f19bbb
--- /dev/null
+++ b/test/val/pragma-once-test.c
@@ -0,0 +1,27 @@
+/*
+** !!DESCRIPTION!! Simple #pragma once directive tests
+** !!ORIGIN!!      cc65 regression tests
+** !!LICENCE!!     Public Domain
+*/
+
+
+#include "pragma-once-sample.h"
+#include "pragma-once-sample.h"
+#include "pragma-once-sample-link.h"
+
+/* pragma-once-sample-link.h is a symlink to pragma-once-sample. */
+
+
+#include <stdio.h>
+
+
+int main() {
+
+#ifdef INCLUDED_TWICE
+    printf("pragma-once-sample.h included more than once\n");
+    return 1;
+#else
+    printf("pragma-once-sample included once\n");
+    return 0;
+#endif
+}