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-rw-r--r--gcc/testsuite/gcc.dg/cpp-if5.c12
1 files changed, 12 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/cpp-if5.c b/gcc/testsuite/gcc.dg/cpp-if5.c
new file mode 100644
index 0000000..2eac73b
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/cpp-if5.c
@@ -0,0 +1,12 @@
+/* Regression test: #ifdef 0 should not crash. Problem noted by
+ Jakub Jelinek <jakub@redhat.com>. */
+/* { dg-do preprocess } */
+
+#ifdef 0 /* { dg-error "with invalid argument" } */
+#error not seen
+#endif
+
+#ifndef 0 /* { dg-error "with invalid argument" } */
+#else
+#error not seen
+#endif