realloc() & ARC
- by RynoB
How would I be able to rewrite the the following utility class to get all the class string values for a specific type - using the objective-c runtime functions as shown below?
The ARC documentation specifically states that realloc should be avoided and I also get the following compiler error on this this line:
classList = realloc(classList, sizeof(Class) * numClasses);
"Implicit conversion of a non-Objective-C pointer type 'void *' to '__unsafe_unretained Class *' is disallowed with ARC"
The the below code is a reference to the original article which can be found here.
+ (NSArray *)classStringsForClassesOfType:(Class)filterType {
int numClasses = 0, newNumClasses = objc_getClassList(NULL, 0);
Class *classList = NULL;
while (numClasses < newNumClasses) {
numClasses = newNumClasses;
classList = realloc(classList, sizeof(Class) * numClasses);
newNumClasses = objc_getClassList(classList, numClasses);
}
NSMutableArray *classesArray = [NSMutableArray array];
for (int i = 0; i < numClasses; i++) {
Class superClass = classList[i];
do {
superClass = class_getSuperclass(superClass);
if (superClass == filterType) {
[classesArray addObject:NSStringFromClass(classList[i])];
break;
}
} while (superClass);
}
free(classList);
return classesArray;
}
Your help will be much appreciated.
Thanks
