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Python subprocess.Popen “OSError: [Errno 12] Cannot allocate memory”
...nd that python was leaking file descriptors by just keeping an eye on it:
watch "ls /proc/$PYTHONPID/fd | wc -l"
Like you, I do want to capture the command's output, and I do want to avoid OOM errors... but it looks like the only way is for people to use a less buggy version of Python. Not ideal....
A type for Date only in C# - why is there no Date type?
...the value is passed from one environment to another, if time zones are not watched very carefully. This commonly occurs in JavaScript (whose Date object is really a date+time), but can easily happen in .NET also, or in the serialization as data is passed between JavaScript and .NET.
Serializing a D...
How to read the content of a file to a string in C?
...at will generally over allocate memory needed for the file contents. Also watch out for binary files, the printf will not handle them correctly, and you probably don't want to print binary anyway!
– anthony
Jan 5 '17 at 3:14
...
Hibernate, @SequenceGenerator and allocationSize
...ehavior you want as default without changing all annotations. In addition, watch out with the "pooled" and "hilo" optimizers: these give odd results when your sequence value starts at 0 causing negative ID's.
– fjalvingh
Nov 26 '18 at 13:06
...
Do AJAX requests retain PHP Session info?
...
One thing to watch out for though, particularly if you are using a framework, is to check if the application is regenerating session ids between requests - anything that depends explicitly on the session id will run into problems, althoug...
Delegates in swift?
...yourself!")
}
}
// MARK: The Story
// Big bro is laying on the couch watching basketball on TV.
let bigBro = BossyBigBrother()
// He has a little sister named Sally.
let sally = PoorLittleSister()
// Sally walks into the room. How convenient! Now big bro
// has someone there to boss around....
Best introduction to C++ template metaprogramming? [closed]
...n, I read the article, although I found this more interesting: youtube.com/watch?v=Am2is2QCvxY (it has two parts). It is a talk by Walter E. Brown: Modern Template Metaprogramming: A Compendium
– Paul
Sep 8 '15 at 18:42
...
How do you change a repository description on GitHub?
...
Watch out: you can only get to this if you have 1 or more files in your repo!
– kasimir
Sep 7 at 15:02
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What are bitwise operators?
...ame as
x * 2y
if you need to quickly multiply by a power of two, but watch out for shifting a 1-bit into the top bit - this makes the number negative unless it's unsigned. It's also useful when dealing with different sizes of data. For example, reading an integer from four bytes:
int val = ...
Keystore change passwords
...e \)
for example: $keytool -keypasswd -keystore keystorename -alias stop\ watch
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