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Do I cast the result of malloc?
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No; you don't cast the result, since:
It is unnecessary, as void * is automatically and safely promoted to any other pointer type in this case.
It adds clutter to the code, casts are not very easy to read (especially if the pointer type is long).
It makes you repeat yourself, which is generally b...
How can I exclude directories from grep -R?
I want to traverse all subdirectories, except the "node_modules" directory.
13 Answers
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Entity Framework and SQL Server View
For several reasons that I don't have the liberty to talk about, we are defining a view on our Sql Server 2005 database like so:
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How to get JS variable to retain value after page refresh? [duplicate]
Is it possible to permanently change a javascript variable? As in, if I set the variable X and make that equal to 1. Then onClick of a button change that variable to 2. How can I get that variable to stay at 2 on refresh of the page?
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Background image jumps when address bar hides iOS/Android/Mobile Chrome
... since they are 100% height and "fixed". Since the background image is set to "cover" it will adjust the image size/position as the containing area is larger.
Based on the responsive nature of the site, the background must scale. I entertain two possible solutions:
1) Set the #bg1, #bg2 height to ...
How to make a class conform to a protocol in Swift?
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Type 'CellDatasDataSource' does not conform to protocol 'NSObjectProtocol'
You have to make your class inherit from NSObject to conform to the NSObjectProtocol. Vanilla Swift classes do not. But many parts of UIKit expect NSObjects.
class CustomDataSource : NSObject...
Forward declaration of a typedef in C++
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You can do forward typedef. But to do
typedef A B;
you must first forward declare A:
class A;
typedef A B;
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Convert String to SecureString
How to convert String to SecureString ?
13 Answers
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How to delete multiple buffers in Vim?
...buffers in Vim. The files have *.cpp , *.h and some are *.xml . I want to close all the XML files with :bd *.xml . However, Vim does not allow this (E93: More than one match...).
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What's the difference between the atomic and nonatomic attributes?
What do atomic and nonatomic mean in property declarations?
26 Answers
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