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authorAlp Toker <alp@nuanti.com>2014-01-25 00:32:40 +0000
committerAlp Toker <alp@nuanti.com>2014-01-25 00:32:40 +0000
commit0d05ab46c656ba334bdded25ff100aa083ceee99 (patch)
treecbd43859faac2847e3975597baf874351ceb4536 /test/Headers
parent0f96528104a24f869c923267ff32b1449a0289b4 (diff)
downloadclang-0d05ab46c656ba334bdded25ff100aa083ceee99.tar.gz
Add a proper test for -Wsystem-headers
This will be extended as we fix issues in the current implementation. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@200054 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/Headers')
-rw-r--r--test/Headers/warn-sysheader.cpp33
1 files changed, 33 insertions, 0 deletions
diff --git a/test/Headers/warn-sysheader.cpp b/test/Headers/warn-sysheader.cpp
new file mode 100644
index 0000000000..dbc38258c4
--- /dev/null
+++ b/test/Headers/warn-sysheader.cpp
@@ -0,0 +1,33 @@
+// Test that -Wsystem-headers works with default and custom mappings like -Werror.
+// Keep run lines at the bottom for line number stability.
+
+#ifdef IS_SYSHEADER
+#pragma clang system_header
+
+int f() { return (int)0; } // Use the old-style-cast warning as an arbitrary "ordinary" diagnostic for the purpose of testing.
+
+#warning "custom message"
+
+#if defined(A) || defined(B)
+// expected-warning@9 {{"custom message"}}
+#elif defined(C)
+// expected-warning@7 {{use of old-style cast}}
+// expected-warning@9 {{"custom message"}}
+#elif defined(D)
+// expected-error@7 {{use of old-style cast}}
+// expected-error@9 {{"custom message"}}
+#elif defined(E)
+// expected-error@7 {{use of old-style cast}}
+// expected-warning@9 {{"custom message"}}
+#endif
+
+#else
+#define IS_SYSHEADER
+#include __FILE__
+#endif
+
+// RUN: %clang_cc1 -verify -fsyntax-only -DA %s
+// RUN: %clang_cc1 -verify -fsyntax-only -DB -Wold-style-cast %s
+// RUN: %clang_cc1 -verify -fsyntax-only -DC -Wold-style-cast -Wsystem-headers %s
+// RUN: %clang_cc1 -verify -fsyntax-only -DD -Wold-style-cast -Wsystem-headers -Werror %s
+// RUN: %clang_cc1 -verify -fsyntax-only -DE -Wold-style-cast -Wsystem-headers -Werror=old-style-cast %s