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memory_get_peak_usage() with “real usage”
... the number of bytes requested by calls to emalloc (plus bytes for headers and memory alignment). It doesn't reflect memory wasted due to blocks not fitting into space remaining in already allocated segments. If you change your example to allocate (1024 * 256) bytes and a 2M limit, the difference of...
Creating a blurring overlay view
...this effect. This is a native API that has been fine-tuned for performance and great battery life, plus it's easy to implement.
Swift:
//only apply the blur if the user hasn't disabled transparency effects
if !UIAccessibility.isReduceTransparencyEnabled {
view.backgroundColor = .clear
let...
ObservableCollection Doesn't support AddRange method, so I get notified for each item added, besides
I want to be able to add a range and get updated for the entire bulk.
12 Answers
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ORA-01882: timezone region not found
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You may also try to check the version of the Oracle jdbc driver and Oracle database. Just today I had this issue when using ojdbc6.jar (version 11.2.0.3.0) to connect to an Oracle 9.2.0.4.0 server. Replacing it with ojdbc6.jar version 11.1.0.7.0 solved the issue.
I also managed to make o...
How do you represent a JSON array of strings?
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I'll elaborate a bit more on ChrisR awesome answer and bring images from his awesome reference.
A valid JSON always starts with either curly braces { or square brackets [, nothing else.
{ will start an object:
{ "key": value, "another key": value }
Hint: although javascrip...
Difference between CLOB and BLOB from DB2 and Oracle Perspective?
...enter/db2luw/v10r5/topic/com.ibm.db2.luw.sql.ref.doc/doc/r0008473.html
SQL and XML limits: http://pic.dhe.ibm.com/infocenter/db2luw/v10r5/topic/com.ibm.db2.luw.sql.ref.doc/doc/r0001029.html
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Difference between “managed” and “unmanaged”
...ead about it sometimes when talking about .NET, for example "managed code" and "unmanaged code" but I have no idea what they are and what are their differences. What are their difference, by definition? What are the consequences of using either of them? Does this distinction exist in .NET/Windows on...
Delete element in a slice
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Where a is the slice, and i is the index of the element you want to delete:
a = append(a[:i], a[i+1:]...)
... is syntax for variadic arguments in Go.
Basically, when defining a function it puts all the arguments that you pass into one slice of...
Multiple glibc libraries on a single host
...hared libraries) which all must match. One of the pieces is ld-linux.so.2, and it must match libc.so.6, or you'll see the errors you are seeing.
The absolute path to ld-linux.so.2 is hard-coded into the executable at link time, and can not be easily changed after the link is done.
To build an exec...
What is the difference between double-ampersand (&&) and semicolon (;) in Linux Bash?
What is the difference between ampersand and semicolon in Linux Bash ?
3 Answers
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