From: Ted Kremenek <kremenek@apple.com>
Date: Wed, 12 Oct 2011 20:06:09 +0000 (+0000)
Subject: Add test case for __has_warning.
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=183a8dead4c3c07efe27fb2db7ede6ed7ac8e2f2;p=clang

Add test case for __has_warning.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@141806 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/test/Preprocessor/warning_tests.c b/test/Preprocessor/warning_tests.c
new file mode 100644
index 0000000000..96b96efc7e
--- /dev/null
+++ b/test/Preprocessor/warning_tests.c
@@ -0,0 +1,19 @@
+// RUN: %clang_cc1 -fsyntax-only %s -verify
+#ifndef __has_warning
+#error Should have __has_warning
+#endif
+
+#if __has_warning("not valid") // expected-warning {{__has_warning expected option name}}
+#endif
+
+#if __has_warning("-Wparentheses")
+#warning Should have -Wparentheses // expected-warning {{Should have -Wparentheses}}
+#endif
+
+#if __has_warning(-Wfoo) // expected-error {{builtin warning check macro requires a parenthesized string}}
+#endif
+
+#if __has_warning("-Wnot-a-valid-warning-flag-at-all")
+#else
+#warning Not a valid warning flag // expected-warning {{Not a valid warning flag}}
+#endif
\ No newline at end of file