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59 lines
1.0 KiB
59 lines
1.0 KiB
9 years ago
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#import <Foundation/Foundation.h>
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@interface MyBlock : NSObject
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@end
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@implementation MyBlock
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-(void) array {
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NSArray *a = [[NSArray alloc] init];
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[a enumerateObjectsUsingBlock:^(id object, NSUInteger idx, BOOL *stop) {
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int ShouldStop;
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/*
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... do something here...
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*/
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if (ShouldStop
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) {
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*stop= YES;
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};
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}];
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}
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-(void) array_trans {
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NSArray *a = [[NSArray alloc] init];
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NSArray *objects = a;
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// The call to the iterator in the above function is translated as:
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void (^enumerateObjectsUsingBlock)(id, NSUInteger, BOOL *)= ^(id object, NSUInteger idx, BOOL* stop) {
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int ShouldStop;
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if (ShouldStop) {
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*stop= YES;
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};
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};
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BOOL *stop = malloc(sizeof(BOOL));
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*stop = NO;
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for (NSUInteger idx=0; idx<objects.count; idx++) {
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id object= objects[idx];
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enumerateObjectsUsingBlock(object, idx, stop);
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if (*stop ==YES) break;
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}
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free(stop);
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}
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@end
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