1 files changed, 85 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/cpp/defined.c b/gcc/testsuite/gcc.dg/cpp/defined.c
new file mode 100644
index 000000000..9a60bdd5d
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/cpp/defined.c
@@ -0,0 +1,85 @@
+/* Copyright (C) 2000 Free Software Foundation, Inc.  */
+
+/* { dg-do preprocess } */
+
+/* Tests behavior of the defined operator.  */
+
+/*  Source: Neil Booth, 29 Oct 2000, Zack Weinberg 11 Dec 2000.  */
+
+#define defined			/* { dg-error "defined" } */
+
+/* No diagnostics, though you could argue there should be.  */
+#if defined defined
+#error defined is defined!
+#endif
+
+#define is_Z_defined defined Z
+
+#if defined Z
+#error Z is not defined
+#endif
+
+/* The behavior of "defined" when it comes from a macro expansion is
+   now documented.  */
+#if is_Z_defined
+#error Macro expanding into defined operator test 1
+#endif
+
+#define Z
+
+#if !defined Z
+#error Z is defined
+#endif
+
+#if !is_Z_defined
+#error Macro expanding into defined operator test 2
+#endif
+
+#undef is_Z_defined
+#undef Z
+
+/* Do all the tests over again with the () form of defined.  */
+
+/* No diagnostics, though you could argue there should be.  */
+#if defined(defined)
+#error defined is defined!
+#endif
+
+#define is_Z_defined defined ( Z )
+
+#if defined(Z)
+#error Z is not defined
+#endif
+
+/* The behavior of "defined" when it comes from a macro expansion is
+   now documented.  */
+#if is_Z_defined
+#error Macro expanding into defined operator test 1
+#endif
+
+#define Z
+
+#if !defined(Z)
+#error Z is defined
+#endif
+
+#if !is_Z_defined
+#error Macro expanding into defined operator test 2
+#endif
+
+/* Use of defined in different contexts.  */
+
+#define bad1 defined
+#if !bad1 Z			/* { dg-warning "may not be portable" } */
+#error Z is defined
+#endif 
+
+#if !bad1 (Z)			/* { dg-warning "may not be portable" } */
+#error Z is defined
+#endif 
+
+#define bad2 defined (Z
+#if !bad2)			/* { dg-warning "may not be portable" } */
+#error Z is defined
+#endif 
+