1 /* Test errors for assignments and comparisons between ObjC and C++ types. */
2 /* Author: Nicola Pero <nicola@brainstorm.co.uk>. */
3 /* { dg-do compile } */
4 // { dg-additional-options "-Wno-objc-root-class" }
8 /* The NeXT runtime headers do not define NULL. */
10 #define NULL ((void *)0)
23 id <MyProtocol> obj_p = nil;
30 /* These should all generate warnings. */
32 obj = i; /* { dg-error "invalid conversion" } */
33 obj = j; /* { dg-error "cannot convert" } */
35 obj_p = i; /* { dg-error "invalid conversion" } */
36 obj_p = j; /* { dg-error "cannot convert" } */
38 obj_c = i; /* { dg-error "invalid conversion" } */
39 obj_c = j; /* { dg-error "cannot convert" } */
41 obj_C = i; /* { dg-error "invalid conversion" } */
42 obj_C = j; /* { dg-error "cannot convert" } */
44 i = obj; /* { dg-error "invalid conversion" } */
45 i = obj_p; /* { dg-error "invalid conversion" } */
46 i = obj_c; /* { dg-error "invalid conversion" } */
47 i = obj_C; /* { dg-error "invalid conversion" } */
49 j = obj; /* { dg-error "cannot convert" } */
50 j = obj_p; /* { dg-error "cannot convert" } */
51 j = obj_c; /* { dg-error "cannot convert" } */
52 j = obj_C; /* { dg-error "cannot convert" } */
54 if (obj == i) ; /* { dg-error "comparison between pointer and integer" } */
55 if (i == obj) ; /* { dg-error "comparison between pointer and integer" } */
56 if (obj == j) ; /* { dg-error "lacks a cast" } */
57 if (j == obj) ; /* { dg-error "lacks a cast" } */
59 if (obj_c == i) ; /*{ dg-error "comparison between pointer and integer" }*/
60 if (i == obj_c) ; /*{ dg-error "comparison between pointer and integer" }*/
61 if (obj_c == j) ; /* { dg-error "lacks a cast" } */
62 if (j == obj_c) ; /* { dg-error "lacks a cast" } */
64 if (obj_p == i) ; /*{ dg-error "comparison between pointer and integer" }*/
65 if (i == obj_p) ; /*{ dg-error "comparison between pointer and integer" }*/
66 if (obj_p == j) ; /* { dg-error "lacks a cast" } */
67 if (j == obj_p) ; /* { dg-error "lacks a cast" } */
69 if (obj_C == i) ; /*{ dg-error "comparison between pointer and integer" }*/
70 if (i == obj_C) ; /*{ dg-error "comparison between pointer and integer" }*/
71 if (obj_C == j) ; /* { dg-error "lacks a cast" } */
72 if (j == obj_C) ; /* { dg-error "lacks a cast" } */