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Would it be beneficial to begin using instancetype instead of id?
...Data: there. Other examples exist, such as length, which returns a CGFloat from UILayoutSupport but a NSUInteger from NSString.)
Note: Since I wrote this, the macOS headers have been modified to return a NSFileHandle instead of an id.
For initializers, it's more complicated. When you type this:
-...
C++ : why bool is 8 bits long?
...processors, addressing a "byte" anyhow ends-up fetching more than a "byte" from external memory: this is due to efficiency reasons.
– jldupont
Jan 14 '10 at 14:34
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Change font color for comments in vim
...kground setting:
set background=dark
would change the color of comments from dark blue to light blue, when using the default colorscheme.
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Firefox Web Console Disabled?
How come I get this message from Firefox Web Console
4 Answers
4
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How can I stop a Postgres script when it encounters an error?
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I think the solution to add following to .psqlrc is far from perfection
\set ON_ERROR_STOP on
there exists much more simple and convenient way - use psql with parameter:
psql -v ON_ERROR_STOP=1
better to use also -X parameter turning off .psqlrc file usage.
Works perfectly f...
How to wait for a number of threads to complete?
...t problem, but it's nice to get more Information about the running threads from one Object (like the ExecutorService). I think it's nice to use given features to solve a problem; maybe you'll need more flexibility (thread information) in the future. It's also right to mention the old buggy class...
Choosing Java vs Python on Google App Engine
... code in the user's browser, Java's GWT (generating the Javascript for you from your Java-level coding) is far richer and more advanced than Python-side alternatives (in practice, if you choose Python, you'll be writing some JS yourself for this purpose, while if you choose Java GWT is a usable alte...
How to discard all changes made to a branch?
...f a specific branch to be equal with the master branch. To do so, run this from within the specific branch, and then delete the [branch name].diff file when done using git rm [branch name].diff
– karolus
May 8 at 12:37
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线程访问窗口资源的问题 - C/C++ - 清泛网 - 专注C/C++及内核技术
...threaded application, it is likely that
// you have passed a C++ object from one thread to another
// and have used that object in a way that was not intended.
// (only simple inline wrapper functions should be used)
//
// In general, CWnd objects should be passed by HWND from
// o...
Are there any downsides to passing structs by value in C, rather than passing a pointer?
...ucts (eg point, rect) passing by value is perfectly acceptable. But, apart from speed, there is one other reason why you should be careful passing/returning large structs by value: Stack space.
A lot of C programming is for embedded systems, where memory is at a premium, and stack sizes may be meas...