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How to write a large buffer into a binary file in C++, fast?
... fwrite(a, 1, size*sizeof(unsigned long long), pFile);
}
fclose(pFile);
return 0;
}
I just timed 8GB in 36sec, which is about 220MB/s and I think that maxes out my SSD. Also worth to note, the code in the question used one core 100%, whereas this code only uses 2-5%.
Thanks a l...
Format a Go string without printing?
...te: you may also display the result of a template execution if you provide os.Stdout as the target (which also implements io.Writer):
t := template.Must(template.New("email").Parse(emailTmpl))
if err := t.Execute(os.Stdout, data); err != nil {
panic(err)
}
This will write the result directly ...
To ARC or not to ARC? What are the pros and cons? [closed]
...y of the code in the project I'm working on at the moment was written pre-iOS 5.0.
6 Answers
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What does the brk() system call do?
...
In the diagram you posted, the "break"—the address manipulated by brk and sbrk—is the dotted line at the top of the heap.
The documentation you've read describes this as the end of the "data segment" because in traditional (pre-shared-lib...
How should strace be used?
...rogrammer / user to quickly find out how a program is interacting with the OS. It does this by monitoring system calls and signals.
Uses
Good for when you don't have source code or don't want to be bothered to really go through it.
Also, useful for your own code if you don't feel like opening up GD...
What's the difference between “version number” in iTunes Connect, “bundle version”, “bundle version
... 12345 or 1.2.3 (Build 12345AB). This is shown in the About window for Mac OS X apps for example and is often more a "Build Number" than a "Version Number".
Bundle Version String (CFBundleShortVersionString)
This value is used as the "real" version number. This must be the same string as used for th...
How to develop Desktop Apps using HTML/CSS/JavaScript? [closed]
... a coworker of mine recently left for Spotify and said he will be working mostly in JavaScript for the Spotify Desktop app. He said it uses "Chrome frame" and everything inside is done like a web app (HTML/JS/CSS).
...
How do you create a REST client for Java? [closed]
With JSR 311 and its implementations we have a powerful standard for exposing Java objects via REST. However on the client side there seems to be something missing that is comparable to Apache Axis for SOAP - something that hides the web service and marshals the data transparently back to Java objec...
How to check iOS version?
I want to check if the iOS version of the device is greater than 3.1.3
I tried things like:
37 Answers
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How do I activate a virtualenv inside PyCharm's terminal?
...t>.
I don't have the reputation to comment on the earlier response so posting this corrected version. This really saves a LOT of time.
Update:
Note: Pycharm now supports virtual environments directly and it seems to work well for me - so my workaround not needed anymore.
...