pch questions

$ (srcroot)/prefixheader.pch Auto-fit PCH Address__weak __block typeof (self) weakself = self;__weak typeof (self) weakself = self;#define DN_DEBUG_LOG (FMT, ...){NSLog (@ "%s [line%d]" FMT), __pretty_function__, __line__, # #__VA_ARGS__);}Nsdictionary *ifs = [self fetchssidinfo];NSString *ssid = [[IFS objectforkey:@ "SSID"] lowercasestring];NSString *ssid =ifs[@ "SSID"];NSLog (@ "ifs--%@, WiFi device name--%@", Ifs,ssid);-(ID) fetchssidinfo {Nsarray

Because OpenCV is written in C + +, you need to add Libc++.dylib to other link compilation options when compiling the iOS project, otherwise there will be many errors.Then there is the precompiled header file. pch problem, search on the internet, said in the PCH added OPENCV2/OPENCV.HPP will appear after the "# # Add # include

We know that you can use the Prefix. pch file in the IOS project to perform some pre-compilation operations, such as introducing global header files and defining constants. I encountered an incredible problem when I was preparing to write a Demo today. No matter how I did it, introducing the header file in the pch file would result in an error, saying that the file could not be found, however, why can't I f

Http://www.rockia.net/2013/03/fix-xcode-update-pch-file-errorError:PCH file built from a different branch (clang-425.0.24) than the compiler (clang-425.0.27 )) In fact, this is only a small conflict between different xcode versions, the solution is very easy, as follows: Select products from the xcode menu) Press and hold the option key on the keyboard, and then select the clean build folder Go back to work... Pai_^ Fix xcode upgrade err

From: http://www.cppblog.com/silekey/articles/87108.html Note: Many compilation and link parameters are added to the Framework generated by default by MFC. If we want to customize our own framework, unfamiliar compilation parameters will cause many problems. Keyword: VC Empty Project custom pre-compilation header. PCHThe pre-compiled header file cannot be opened: "Debug/Xxx. PCH ": no such file or directory Here is a concept to be explained first: 1>

Generally this happens because the project is copied directly to the other computer to run ...Clang:error:no such file or directory: '/demo2/control Code/13/recorder/recorder_prefix.pch 'Clang:error:no input FilesCommand/developer/platforms/iphonesimulator.platform/developer/usr/bin/clang failed with exit code 1WORKAROUND: In your main project file target search, PCH, find the prefix Header to remove the value behind it, and then re-change to the path

Add file, select Other->pch file Select Build Setting Search prefix Header In App LLVM 6.0-language, find prefix Header add yourprojectname/pchname.pch Clean project, build project650) this.width=650; "src=" Http://s3.51cto.com/wyfs02/M00/57/8D/wKiom1SdLUTxKpvEAAQZb4F40gg003.jpg "title=" D1e80550-6808-4c24-8b0c-44accc46a2e9.png "alt=" Wkiom1sdlutxkpveaaqzb4f40gg003.jpg "/> This article is from the "one-mind" blog, please be sure to keep thi

Hello world_prefix.pch: the extension. PCH indicates "precompiled header". This is a list of header files from the external framework used by your project. Xcode will compile these headers to files, which will reduce the time for you to compile the project when you select build or build and go. Usually, the header file is automatically included. PCH: the system will include this file before compiling every

This issue occurs when compiling release versions of Orb_slam: Error 2 C3859: The virtual memory range of the PCH is exceeded; Please use '-zm465 ' or a larger command line To modify the method: 1. Find Engineering-> Properties->c/c++-> command line-> other options2. Input/zm100, which can be larger after the number Reason: To expedite boost compilation, use a precompiled header. Plus boost's header file is more, causing the

Cause: The precompiled header used to accelerate boost compilation. In addition, many boost header files are added, resulting in the PCH file exceeding the default value. Solution: 1. Find the project> Properties> C/C ++> command line> other options. 2. Input/zm100, with a larger number Definition: /ZM (specify the memory allocation limit of the pre-compilation header): determines the amount of memory allocated by the compiler to construct the p

1. About NSLog Output/** * When Xcode is release does not output, for debug output * * @param ... * * @return * /#ifndef __optimize__#define NSLog (...) NSLog (__va_args__)/** * You can see the class name, method, and number of rows when printing * *///#define NSLOG (FMT,...) NSLog (@ "%s [line%d]" FMT), __pretty_function__, __line__, # # __va_args__); #else # define NSLOG (...) {} #endif2. Color#define RGB_COLOR (r,g,b) [Uicolor colorwithred: (r)/255.0 Green: (g)/255.0 Blue: (b)/255.0 alph

(Various companies interview original questions) online has done a set of CC ++ integrated test questions, also to test your level (2), cc integrated test questions I have read the last 10 questions and sent them to me. The following is a question, and I have some understanding of the question. Top 10 question addre

[Interview Questions] Android interview questions, questions android questions Android interview questions The interview questions collected on the Internet are a good supplementary study of Android theory! 1. Whether the proces

LeetCode OJ Linked List: 92 questions, 143 questions, 147 questions and 160 questions, leetcodeoj Question 92:Reverse Linked List II Question Analysis:First Thought: Find the precursor of m and the successor of n, record it, disconnect m to n, reverse it, And then reconnect. The second approach is to re-insert m to n

Public Comments pen questions programming questions, public comments pen questions Use the fastest way to determine whether all string2 letters exist in string1, for example, string2 = "abx", string1 = "abcdef", AB in string1, x does not exist. The exam submission time has not arrived yet. Hey, you cannot submit it. Wait until the exam is completed and submit it

Sgu 106: First, let's solve a linear equation AX + by =-C, which can be done by extending Euclidean. However, it requires us to output the number of solutions that meet X1 At first I wanted to record the boundary values of X and Y, But I thought for a long time and divided them into n cases... because it was too cumbersome, I simply gave up the score and handed in a wa. After reading someone's problem-solving report, we found that we can find the number of K that satisfies X1 Then, solve the e

1045 million questions: 1045 million questions, million questions Description: Use less than or equal to n yuan to buy 100 chickens, 5 yuan for chicken, 3 yuan for chicken, and one type of chicken with 1/3 yuan each, respectively, as x, y only, z only. Programming all possible solutions for x, y, and z. Input: There are multiple groups of

Test Questions // Write a function to flip the string. The flip method is as follows: "I am a student" is reversed to "student a am I" without any library function. It is said that this question was frequently used in a written test or interview. I just saw this question in my book, and I saw it again in the blog Garden ("Publish a typical interview question "). The author also suggested that the method is to first reverse the entire s

Multiple-choice questions are randomly selected from the database. after submission, you want to obtain the answers for each multiple-choice question and check the answers with the correct answers. you do not know how to obtain the answers entered by the respondents, and check the answers with the correct answers, the created database has an approximate effect on the page! [! IMG (img.ask.csdn.netupload201504081428467295_514228.png )! (Optional) image

Question: There was a rabbit who had a rabbit every month since 3rd months after birth. After the third month, the rabbit had a rabbit every month. If the rabbit was not dead, what is the total number of rabbits per month? ProgramAnalysis: the rabbit rule is a sequence of numbers 1, 1, 2, 3, 5, 8, 13, 21 .... Bytes --------------------------------------------------------------------------------------------------------- Here is myCodeYou are welcome to post the results. C # Class P