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Is String.Format as efficient as StringBuilder

...eration for a String or StringBuilder object depends on how often a memory allocation occurs. A String concatenation operation always allocates memory, whereas a StringBuilder concatenation operation only allocates memory if the StringBuilder object buffer is too small to accommodate the new data. C...
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How large should my recv buffer be when calling recv in the socket library

...ning out of space? No. However, you can try to resize the buffer using realloc() (if it was originally allocated with malloc() or calloc(), that is). share | improve this answer | ...
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UIView frame, bounds and center

...] could be the view managed by a UIViewController UIView* view1 = [[UIView alloc] initWithFrame:CGRectMake(30.0f, 20.0f, 400.0f, 400.0f)]; view1.backgroundColor = [UIColor redColor]; [[self view] addSubview:view1]; When you need the coordinates to drawing inside a view you usually refer to bo...
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How to undo a git merge with conflicts

... can go to your previous commit state temporarily by command git checkout 0d1d7fc32 share | improve this answer | follow | ...
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How to load local html file into UIWebView

... in your project Assets(bundle) to webView. UIWebView *web = [[UIWebView alloc] initWithFrame:CGRectMake(0, 0, 320, 460)]; [web loadRequest:[NSURLRequest requestWithURL:[NSURL fileURLWithPath:[[NSBundle mainBundle] pathForResource:@"test" ofType:@"html"]isDirec...
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Replacement for deprecated -sizeWithFont:constrainedToSize:lineBreakMode: in iOS 7?

...ample: NSMutableParagraphStyle *paragraphStyle = [[NSMutableParagraphStyle alloc] init]; paragraphStyle.lineBreakMode = NSLineBreakByWordWrapping; In the attributes you would then need to add NSParagraphStyleAttributeName: paragraphStyle.copy... – Florian Friedrich ...
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When you exit a C application, is the malloc-ed memory automatically freed?

...d introduces the possibility of bugs (tell me you've never seen a bug in deallocation code!). It's not "sloppy" to intentionally omit something which is worse in every way for your particular use case. Unless or until you mean to run it on some ancient/tiny system which can't free pages after proc...
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How to use shared memory with Linux in C

... you'd rather use the old-style tools. The mmap() function can be used to allocate memory buffers with highly customizable parameters to control access and permissions, and to back them with file-system storage if necessary. The following function creates an in-memory buffer that a process can sha...
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How can i take an UIImage and give it a black border?

...mport <QuartzCore/CALayer.h> UIImageView *imageView = [UIImageView alloc]init]; imageView.layer.masksToBounds = YES; imageView.layer.borderColor = [UIColor blackColor].CGColor; imageView.layer.borderWidth = 1; This code can be used for adding UIImageView view border. ...
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Git log to get commits only for a specific branch

...8:01:59 2016 +0200 | | | | Merge pull request #9367 from cakephp/fewer-allocations | | | | Do fewer allocations for simple default values. | | | * commit 0459a35689fec80bd8dca41e31d244a126d9e15e | | Author: Mark Story <mark@mark-story.com> | | Date: Mon Aug 29 22:21:16 2016 -0400 | |...