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/* Contributed by Nicola Pero <nicola.pero@meta-innovation.com>, November 2010. */
/* { dg-do compile } */
/* { dg-options "-Wall" } */
/* Test warnings with the dot-syntax. */
#include <stdlib.h>
#include <objc/objc.h>
#include <objc/runtime.h>
@interface MyRootClass
{
Class isa;
id a;
id b;
int p1;
int p2;
}
+ (id) initialize;
+ (id) alloc;
- (id) init;
@property int p1;
@property int p2;
@end
@implementation MyRootClass
+ (id) initialize { return self; }
+ (id) alloc { return class_createInstance (self, 0); }
- (id) init { return self; }
@synthesize p1;
@synthesize p2;
@end
int main (void)
{
MyRootClass *object = [[MyRootClass alloc] init];
/* First, test that the artificial code generated by dot-syntax does
not generate unexpected warnings. */
/* All of the following should generate no warnings. */
object.p1 = 0;
object.p2 = 0;
object.p1 = object.p2 = 0;
if (object.p1 > 0)
object.p2 = 0;
object.p1++;
++object.p1;
object.p1--;
--object.p1;
while (object.p1)
object.p1--;
/* Now test some warnings. */
object.p1; /* This warning does not seem to be produced in C++. dg-warning "value computed is not used" */
/* TODO: It would be good to get the following to warn. */
if (object.p1 = 0) /* dg-warning "suggest parentheses around assignment used as truth value" */
abort ();
return 0;
}
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