xcode debug

Label: Ar use SP file data code BS amp ef Xcode has built-in GDB. You can print basic data types using the print command during debugging, but complex types like qstring won't work. Although we can view the corresponding qstring value in the program code by adding the QT debug print statement qdebug () Define printqstringPrintf "(qstring) 0x % x (length = % I): \" ", $ arg0, $ arg0.d-> sizeSet $ I = 0W

In Xcode, when you debug, you can't see the value of a variable directly, like Eclipse, or vs those integrated development. So how do you look at Xcode's variables while debugging?There are some ways.1. Create a new single View AppAdd some code to the Viewdidload:-(void) viewdidload{ [Super Viewdidload]; Nsdictionary *dic = [nsdictionary dictionarywithobjectsandkeys:@ "value1", @ "Key1",

do the corresponding upgrade, but also stay in sdk9.0.But there are some people on the internet who say that upgrading Xcode is not possible, for the same reason that the SDK version of the phone does not match the version supported by XcodeThe following Web-based programFind Xcode, right click, open Display package content, by Path Contents/develpoer/platforms/iponeos.platform/developer/sdks, this time yo

Today upgraded the ipod SDK to Ios8,xcode only support to 7.1, the real-machine debugging encountered problems??? Here's the solution!Find Xcode, right click, open Display package content, by Path Contents/develpoer/platforms/iponeos.platform/developer/sdks, this time you see the installation package, Mine is IPHONEOS7.1.SDK.Then copy the SDK and name it IPHONEOS8.0.SDKAnd then Contents/develpoer/platforms/

In the development process, we often need to use the NSLog output some information, and even some development process, you must view the output in the console, experienced programmers through the console output to know the entire data interaction of a process. But a release of the program, with too much nslog output, certainly for app performance, this time we can use a macro definition to deal with, in the development of the use of debug mode, when t

In Xcode, the values of variables cannot be directly viewed in Debug mode like those in eclipse or VS integrated development. So how can I view XCode variables during debugging? There are some methods. 1. Create a Single View App Add some code in viewDidLoad: - (void)viewDidLoad{ [super viewDidLoad]; NSDictionary *dic = [NSDictionary dictionaryWithObjec

Xcode true Machine Debug times wrong:Dyld:library not loaded: @rpath/libswiftavfoundation.dylibReferenced from:/var/mobile/containers/bundle/application/a54d1688-b528-4606-9e02-b51433425fb7/ Lovefreshbeen.app/lovefreshbeenReason:no suitable image found. Did find:/private/var/mobile/containers/bundle/application/a54d1688-b528-4606-9e02-b51433425fb7/lovefreshbeen.app/ Frameworks/libswiftavfoundation.dylib:mma

UseXcode4 CompilerThis document describes how to set the Release/Debug tutorial.Xcode 4So that we can get familiar with and understandXcode 4There is not much content, but it can really help you solve it.Xcode 4. Let's first look at the content. Go to Xcode 4 and choose "Product"> "Manage Schemes: Select a project and click "Edit ", Bulid Configuration In debugging, if you need to input parameters,

What is address sanitizer?Addresssanitizer is a fast memory error detector. IT consists of a compiler instrumentation module and a run-time library. The tool can detect the following types of bugs:Out-of-bounds accesses to heap, stack and globalsUse-after-freeUse-after-return (To some extent)Double-free, Invalid freeMemory Leaks (experimental)总结来说：**用来解决内存问题的**。当发生Crash时，打印这个Crash内存的使用记录。通过这个使用记录来调试Bug。How do I use it in Xcode? You need to in

Today, when the real machine debugging encountered this error: The application could not be verified.This is the first time, it should be the app on the phone and the certificate is inconsistent with today's certificate caused.There are two ways to resolve thisSwitch Certificates in Xcode: 你手机上的app用的是哪个证书，你如今还用那个证书执行。Delete the app on your phone直接删除手机上的app。再执行就能够啦！My blog: Just online?Xcode Real Machine

In other words, writing a code is a process of writing a bug and then debugging a bug.1, Xcode The simplest is the NSLogNSLog (@ "str---%@\n\n", str);//Too many NSLog, Apple may not pass the audit.2. BreakpointsWhen you click in the number area, a blue breakpoint will appear. Coordination Diagram II can be debugged.Figure one: Figure II:But an n-cycle, it is impossible to press the button for a moment, which is you need to right-click on the blue Brea

' nsinvalidargumentexception ', Reason: '-[viewcontroller haha]: Unrecognized sel Ector sent to instance 0x7fcd584a1ae0 'Indicates that the method does not exist, so it causes a crashSecond, exc_bad_access is generally a memory access error, the object memory has been released, but still access will cause such consequences For example, when making a video, generator is the picture resource generator [Generator generatecgimagesasynchronouslyfortimes:@[ Currentsniptime] Completionhandler: ^ (

From: http://www.fengqijun.com/posts/open-nszombieenabled-help-diagnose-exc-bad-access Enable nszombieenabled to debug exc_bad_access In IOSProgramWhether you are a newbie or a cool man, you may encounter exc_bad_access. At this time, no information is displayed in your debug area to help you identify the problem. In this case, you need to enable nszombieenabled to provide more useful information. In

iOS (Xcode) debug mode (Release mode) In the development of iOS program, often need to use nslog output some information, and even some development process, must view the output in the console, experienced programmers through the console output can know the entire data interaction of a process. But a published program, with too much nslog output, certainly has an impact on app performance, at which point w

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A. Step 1. Apply for Developer Account 2. Register the machine to become a development machine (1) Generate certificate request file (2) Upload request file (3) Generate CER certificate file: **.cer (4) Download CER certificate 3. Register the test program Id:app ID (1) Get the APP ID : Bundle Identifier (2) Register app ID (using wildcards) if you use * as a wildcard ID, you can test any app on the test machine 4. Register test equipment (1) Get the device Udid Xcode6 get the iphone Udid (2 ) R

Xcode7 after the update using the real machine debugging, in IOS8 a Iphone5 phone above no problem, IOS8 a iphone6 also no problem. But in the IOS6 of a iphone4s and IOS7 of the ipad Air2 in the last installation when the installation failed, prompted there was an internal API error. Then Baidu Google a bit, find a few possible or solution:1. Issues with the private API.2.product---Clean it up and build it up again, just so the problem could be solved. -----But my problem is not solved (I even t

The following error occurred while developing the app today:2015-03-27 21:03:02.816 lightta[4120:1592638] * * * terminating app due to uncaught exception ' Nsinvalidargumentexception ' , Reason: ' * * *-[__nscfconstantstring stringbyappendingstring:]: nil argument 'First throw Call stack:(0x2627645f 0x34139c8b 0x262763a5 0x26ee6923 0x95251 0x95123 0xcbc17 0x67c51 0x26fab89f 0x2623cfbf 0x2623c3cf 0x2623aa35 0 X261883B1 0x261881c3 0x2d775201 0x297f243d 0xc9205 0X346C5AAF)Libc++abi.dylib:terminatin

It is very difficult for a C/C ++ cainiao to study some excellent frameworks, but if they can be imported into xcode projects, compilation and debugging on xode will make it easier to learn this matter. xcode is indeed a powerful tool for developers. Recently, we have been engaged in WebKit, V8, and nodejs. As a result, we have found a way to turn these three frameworks into

Although the arc mechanism is added to iOS 5.0 and later versions, memory leakage may still exist due to the complicated mutual reference relationship. Therefore, it is important to understand the principles. How to use instruments to findProgramAnd how to use nszombieenabled. This article assumes that you are familiar with the obj-C memory management mechanism. Development Environment of the experiment: xcode 4.5.2 1. Run the demo. Download