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diff gcc/testsuite/gcc.dg/pr25801.c @ 111:04ced10e8804

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gcc 7
author kono
date Fri, 27 Oct 2017 22:46:09 +0900
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/testsuite/gcc.dg/pr25801.c	Fri Oct 27 22:46:09 2017 +0900
@@ -0,0 +1,44 @@
+/* PR c/25801 */
+/* { dg-do compile } */
+/* { dg-options "-std=c99" } */
+
+int (*a)[];
+struct S *s;
+union U *u;
+enum E *e;
+
+void
+f (void)
+{
+  a++; /* { dg-error "increment of pointer to an incomplete type" } */
+  ++a; /* { dg-error "increment of pointer to an incomplete type" } */
+  a--; /* { dg-error "decrement of pointer to an incomplete type" } */
+  --a; /* { dg-error "decrement of pointer to an incomplete type" } */
+  a += 1; /* { dg-error "invalid use of array with unspecified bounds" } */
+  a -= 1; /* { dg-error "invalid use of array with unspecified bounds" } */
+  a - a; /* { dg-error "arithmetic on pointer to an incomplete type" } */
+
+  s++; /* { dg-error "increment of pointer to an incomplete type" } */
+  ++s; /* { dg-error "increment of pointer to an incomplete type" } */
+  s--; /* { dg-error "decrement of pointer to an incomplete type" } */
+  --s; /* { dg-error "decrement of pointer to an incomplete type" } */
+  s += 1; /* { dg-error "invalid use of undefined type" } */
+  s -= 1; /* { dg-error "invalid use of undefined type" } */
+  s - s; /* { dg-error "arithmetic on pointer to an incomplete type" } */
+
+  u++; /* { dg-error "increment of pointer to an incomplete type" } */
+  ++u; /* { dg-error "increment of pointer to an incomplete type" } */
+  u--; /* { dg-error "decrement of pointer to an incomplete type" } */
+  --u; /* { dg-error "decrement of pointer to an incomplete type" } */
+  u += 1; /* { dg-error "invalid use of undefined type" } */
+  u -= 1; /* { dg-error "invalid use of undefined type" } */
+  u - u; /* { dg-error "arithmetic on pointer to an incomplete type" } */
+
+  e++; /* { dg-error "increment of pointer to an incomplete type" } */
+  ++e; /* { dg-error "increment of pointer to an incomplete type" } */
+  e--; /* { dg-error "decrement of pointer to an incomplete type" } */
+  --e; /* { dg-error "decrement of pointer to an incomplete type" } */
+  e += 1; /* { dg-error "invalid use of undefined type" } */
+  e -= 1; /* { dg-error "invalid use of undefined type" } */
+  e - e; /* { dg-error "arithmetic on pointer to an incomplete type" } */
+}