1 files changed, 27 insertions, 0 deletions
diff --git a/test/Sema/typecheck-binop.c b/test/Sema/typecheck-binop.c
new file mode 100644
index 0000000..f5bdcbb
--- /dev/null
+++ b/test/Sema/typecheck-binop.c
@@ -0,0 +1,27 @@
+/* RUN: clang-cc %s -fsyntax-only -pedantic -verify
+ */
+struct incomplete; // expected-note{{forward declaration of 'struct incomplete'}}
+
+int sub1(int *a, double *b) { 
+  return a - b;    /* expected-error{{not pointers to compatible types}} */
+}
+
+void *sub2(struct incomplete *P) {
+  return P-4;      /* expected-error{{subtraction of pointer 'struct incomplete *' requires pointee to be a complete object type}} */
+}
+
+void *sub3(void *P) {
+  return P-4;      /* expected-warning{{GNU void* extension}} */
+}
+
+int sub4(void *P, void *Q) {
+  return P-Q;      /* expected-warning{{GNU void* extension}} */
+}
+
+int sub5(void *P, int *Q) {
+  return P-Q;      /* expected-error{{not pointers to compatible types}} */
+}
+
+int logicaland1(int a) {
+  return a && (void)a; /* expected-error{{invalid operands}} */
+}