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Can I call memcpy() and memmove() with “number of bytes” set to zero?
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As said by @You, the standard specifies that the memcpy and memmove should handle this case without problem; since they are usually implemented somehow like
void *memcpy(void *_dst, const void *_src, size_t len)
{
unsigned char ...
Can you determine if Chrome is in incognito mode via a script?
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In Chrome 74 to 84.0.4147.135 you can determine this by estimating the available file system storage space
See the jsfiddle
if ('storage' in navigator && 'estimate' in navigator.storage) {
const {usage, quota} = await navigator.storage.estimate();
console.log(`U...
How can I get the corresponding table header (th) from a table cell (td)?
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You can do it by using the td's index:
var tdIndex = $td.index() + 1;
var $th = $('#table tr').find('th:nth-child(' + tdIndex + ')');
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Java List.add() UnsupportedOperationException
...tation supports the add() method.
One common example is the List returned by Arrays.asList(): it is documented not to support any structural modification (i.e. removing or adding elements) (emphasis mine):
Returns a fixed-size list backed by the specified array.
Even if that's not the specifi...
Difference Between Cohesion and Coupling
...ting Staff related data. They don't perform actions that should be managed by another class.
– Antonio Pantano
Oct 14 '16 at 22:09
3
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Fade Effect on Link Hover?
...a vendor prefix is there, doesn't mean it will
work in a browser made by that vendor either, it's just for
future-proofing purposes I guess. */
-o-transition:.5s;
-ms-transition:.5s;
-moz-transition:.5s;
-webkit-transition:.5s;
/* ...and now for the proper property */
transitio...
How to pass macro definition from “make” command line arguments (-D) to C source code?
... also state that $(CFLAGS) should come last, so that any options specified by a user will override anything the Makefile sets internally. That would mean using e.g. local_CFLAGS = -Wall $(CFLAGS). Conversely, if there's something you really want to take precedence, put it after $(CFLAGS), as in @Mad...
What's the difference between JPA and Hibernate? [closed]
...while Hibernate's JPA implementation is code that meets the API as defined by the JPA specification and provides the under the hood functionality.
When you use Hibernate with JPA you are actually using the Hibernate JPA implementation. The benefit of this is that you can swap out Hibernate's imple...
What's the reason for “Error:Cannot determine Java VM executable in selected JDK”?
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You should be able to work it around by setting the jdk from the settings not from the open/import project dialog.
From the welcome screen, go to Configure -> Project defaults -> Project structure and add the jdk.
Opening the sbt project should work w...
What does it mean in shell when we put a command inside dollar sign and parentheses: $(command)
...uld return you the name of the script file.
dirname is a utility provided by GNU coreutils that remove the last component from the filename. Thus if you execute your script by saying bash foo, "$( dirname "${BASH_SOURCE[0]}" )" would return .. If you said bash ../foo, it'd return ..; for bash /some...