Add the clang library to the repo (with some of my changes, too).

1 files changed, 21 insertions, 0 deletions

diff --git a/clang/test/Sema/pointer-addition.c b/clang/test/Sema/pointer-addition.c
new file mode 100644
index 0000000..21ce63b
--- /dev/null
+++ b/clang/test/Sema/pointer-addition.c
@@ -0,0 +1,21 @@
+// RUN: %clang_cc1 %s -fsyntax-only -verify -pedantic
+
+typedef struct S S; // expected-note 3 {{forward declaration of 'struct S'}}
+void a(S* b, void* c) {
+  void (*fp)(int) = 0;
+  b++;       // expected-error {{arithmetic on a pointer to an incomplete type}}
+  b += 1;    // expected-error {{arithmetic on a pointer to an incomplete type}}
+  c++;       // expected-warning {{arithmetic on a pointer to void is a GNU extension}}
+  c += 1;    // expected-warning {{arithmetic on a pointer to void is a GNU extension}}
+  c--;       // expected-warning {{arithmetic on a pointer to void is a GNU extension}}
+  c -= 1;    // expected-warning {{arithmetic on a pointer to void is a GNU extension}}
+  (void) c[1]; // expected-warning {{subscript of a pointer to void is a GNU extension}}
+  b = 1+b;   // expected-error {{arithmetic on a pointer to an incomplete type}}
+  /* The next couple tests are only pedantic warnings in gcc */
+  void (*d)(S*,void*) = a;
+  d += 1;    // expected-warning {{arithmetic on a pointer to the function type 'void (S *, void *)' is a GNU extension}}
+  d++;       // expected-warning {{arithmetic on a pointer to the function type 'void (S *, void *)' is a GNU extension}}
+  d--;       // expected-warning {{arithmetic on a pointer to the function type 'void (S *, void *)' is a GNU extension}}
+  d -= 1;    // expected-warning {{arithmetic on a pointer to the function type 'void (S *, void *)' is a GNU extension}}
+  (void)(1 + d); // expected-warning {{arithmetic on a pointer to the function type 'void (S *, void *)' is a GNU extension}}
+}