C is quirky, flawed, and an enormous success. Although accidents of history surely helped, it evidently satisfied a need for a system implementation language efficient enough to displace assembly language, yet sufficiently abstract and fluent to describe algorithms and interactions in a wide variety o...
function, the superclass's dealloc implementation will not be executed. On the other hand, if I explicitly call the superclass's dealloc method, the program crashes. Here is the implementation of the cus_dealloc function: void custom_dealloc(id self, SEL _cmd) { // Release other memory !
A complete implementation requires a binary breaking change. F Features removed when the /std:c++17 or later compiler option is specified. To re-enable these features (to ease the transition to newer language modes), use these macros: _HAS_AUTO_PTR_ETC, _HAS_FUNCTION_ALLOCATOR_SUPPORT, _HAS...
Objective-C在C语言的基础上添加了面向对象特性。使用“消息结构”(message structure)而非“函数调用”(function calling)。OC由Smalltalk演化而来,后者是消息型语言的鼻祖。 消息与函数调用的关键区别在于:使用消息结构的语言,其运行时所应执行的代码有运行环境来决定;而使用函数调用的语言,则有编译器决定。
A complete implementation requires a binary breaking change. F Features removed when the /std:c++17 or later compiler option is specified. To re-enable these features (to ease the transition to newer language modes), use these macros: _HAS_AUTO_PTR_ETC, _HAS_FUNCTION_ALLOCATOR_SUPPORT, _HAS...
BOOL addSucc = class_addMethod(xiaomingClass, oriSEL, method_getImplementation(cusMethod), method_getTypeEncoding(cusMethod)); 替换原方法实现 class_replaceMethod(toolClass, cusSEL, method_getImplementation(oriMethod), method_getTypeEncoding(oriMethod)); ...
使用GCD,可以让你的程序不会失去响应. 多线程不容易使用,用了GCD,会让它变得简单。你无需专门进行线程管理, 很棒! dispatch_queue_t t1=dispatch_queue_create("1", NULL); dispatch_queue_t t2=dispatch_queue_create("2", NULL); dispatch_async(t1, ^{ ...
Am i measuring this incorrectly? The game is written in mixed C++ and ObjC. It uses Metal as graphic API and GCD for dispatching jobs. I have Xcode 13.4.1 and test on an iPhone 13 Pro with iOS 15.7. Thanks. Topic:App & System ServicesSubTopic:Processes & ConcurrencyTags:MetalDebuggingOb...
Queuer - A queue manager, built on top of OperationQueue and Dispatch (aka GCD). SwiftQueue - Job Scheduler with Concurrent run, failure/retry, persistence, repeat, delay and more. GroupWork - Easy concurrent, asynchronous tasks in Swift. StickyLocking - A general purpose embedded hierarchical...
Example #import"AppDelegate.h"#import<MangoFix/MangoFix.h>@implementationAppDelegate- (BOOL)encryptPlainScirptToDocument{NSError*outErr =nil;BOOLwriteResult =NO;NSURL*scriptUrl = [[NSBundlemainBundle]URLForResource:@"demo"withExtension:@"mg"];NSString*plainScriptString = [NSStringstringWithContentsOf...