1 files changed, 68 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/obj-c++.dg/encode-7.mm b/gcc-4.9/gcc/testsuite/obj-c++.dg/encode-7.mm
new file mode 100644
index 000000000..74c58ab95
--- /dev/null
+++ b/gcc-4.9/gcc/testsuite/obj-c++.dg/encode-7.mm
@@ -0,0 +1,68 @@
+/* Check if array arguments of ObjC methods are decayed to pointer types
+   in a proper fashion:
+     (1) The _encodings_ for the array arguments should remain to be '[4i]' and
+         such, since this has been the case since at least gcc 3.3.
+     (2) However, when building the static C functions out of ObjC method signatures,
+         we need to decay the arrays into pointers (as C does).
+     (3) If array size is not known (e.g., 'int a[]'), then the type shall be
+         encoded as a pointer.  */
+
+/* Contributed by Alexander Malmberg <alexander@malmberg.org>  */
+
+#include "../objc-obj-c++-shared/TestsuiteObject.m"
+#include "../objc-obj-c++-shared/runtime.h"
+#include <stdlib.h>
+#include <stdio.h>
+#define CHECK_IF(expr) if(!(expr)) abort()
+
+@interface Test : TestsuiteObject
+{ float j; }
+-(void) test2: (int [5])a with: (int [])b;
+-(id) test3: (Test **)b; /* { dg-message "previous declaration of .\\-\\(id\\)test3:\\(Test \\*\\*\\)b." } */
+@end
+
+@implementation Test
+-(void) test2: (int [5])a with: (int [])b
+{
+  a[3] = *b;
+}
+-(void) test3: (Test [3][4])b {  /* { dg-warning "conflicting types for .\\-\\(void\\)test3:\\(Test \\\[3\\\]\\\[4\\\]\\)b." } */
+}
+@end
+
+int bb[6] = { 0, 1, 2, 3, 4, 5 };
+int *b = bb;
+Test *cc[4];
+Test **c = cc;
+
+int offs1, offs2, offs3, offs4, offs5, offs6;
+
+int main(int argc, char **argv)
+{
+  Class testClass = objc_getClass("Test");
+  Method meth;
+
+  cc[0] = [Test new];
+  CHECK_IF (bb[3] == 3);
+  [*c test2: b with: bb + 4];
+  CHECK_IF (bb[3] == 4);
+  bb[3] = 0;
+  [*c test2: bb with: bb + 5];
+  CHECK_IF (bb[3] == 5);
+
+  meth = class_getInstanceMethod(testClass, @selector(test2:with:));
+  offs1 = offs2 = offs3 = offs4 = offs5 = offs6 = -1;
+  sscanf(method_getTypeEncoding(meth), "v%d@%d:%d[%di]%d^i%d", &offs1, &offs2, &offs3,
+      &offs4, &offs5, &offs6);
+  CHECK_IF (!offs2 && offs4 == 5 && offs3 > 0);
+  CHECK_IF (offs5 == 2 * offs3 && offs6 == 3 * offs3 && offs1 == 4 * offs3);
+  
+  meth = class_getInstanceMethod(testClass, @selector(test3:));
+  offs1 = offs2 = offs3 = offs4 = offs5 = offs6 = -1;
+  sscanf(method_getTypeEncoding(meth), "v%d@%d:%d[%d[%d{Test=#f}]]%d", &offs1, &offs2, &offs3,
+      &offs4, &offs5, &offs6);
+  CHECK_IF (!offs2 && offs4 == 3 && offs5 == 4 && offs3 > 0);
+  CHECK_IF (offs6 == 2 * offs3 && offs1 == 3 * offs3);
+  
+  return 0;
+}