c tag

1304 questions

2 answers
67 views
0

Understanding Properties and Instance Variables

I have a question about properties and instance variables.------- Sample 1 #import ViewController.h@ interface ViewController()@property(weak, nonatomic)IBOutlet UITextField*text1;@end@implementation ...

objective-c

2 years ago

1 answers
127 views
0

Regarding the case where EAGAIN occurs during read(recv) execution in Socket Communication (TCP/Blocking I/O)

In Socket Communication (TCP/Blocking I/O), when reading is performed with code similar to the following,

linux c centos socket tcp

2 years ago

3 answers
32 views
0

Learning recursive functions.Segmentation fault reason

The code below is a program that calculates and outputs mPn and mCn using recursive functionsI know that the segmentation fault is n==m-n in line 4, but I don't know why.How can I run the program?#inc...

2 years ago

3 answers
72 views
0

How Objective-C communicates synchronously with JSON.

Nice to meet you.I would like to exchange JSON files during the synchronous communication process in Objective-C.I don't know exactly which method is good.I would like to know how to not use AFNetwork...

ios objective-c json

2 years ago

1 answers
32 views
0

How to substitute the value of char* for const char* [closed]

Do you want to improve this question?Edit your post to clarify the issue you are trying to resolve by adding details.Closed 6 years ago.6 years agoIs it possible to replace chara*=Tokyo; with const ch...

c++ c

2 years ago

3 answers
33 views
0

Please tell me why random numbers provided in the C language standard are not recommended.

2 years ago

1 answers
82 views
0

Understanding OpenCV3 HDR Synthesis

I thought OpenCV 3.0's HDR synthesis would be used by iOS, so I coded it by referring to the following site.http://docs.opencv.org/master/d3/db7/tutorial_hdr_imaging.htmlThe code is as follows. - (UII...

ios objective-c opencv

2 years ago

2 answers
78 views
0

In xcode, the iPhone app build result will be run on lldb.

I recently started developing iPhone apps.When I am working on it, I am having trouble with the phenomenon that the build is completed without any errors, but the output results are (lldb).This is a d...

objective-c xcode6

2 years ago

1 answers
132 views
0

Calculated O(N/k) from k=1 to k=N

What do you want to doI would like to calculate the calculation amount when calculating O(N/k) from k=1 to k=N.(O is the order notation.) That's why I'm trying to ask for it as follows, but I'm in tro...

c algorithm mathematics

2 years ago

2 answers
107 views
0

File open compilation error

When opening the c++ file, an error occurred in the line number below.There were 12 errors, but I couldn't solve them.I would appreciate it if you could give me your knowledge./****************//* Mai...

c++ c visual-c++

2 years ago

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