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bool to int conversion
...e, with true converting to 1 and false converting to 0. This is guaranteed by the language.
P.S. C language also has a dedicated boolean type _Bool (macro-aliased as bool), and its integral conversion rules are essentially the same as in C++. But nevertheless this is not relevant to your specific e...
What does LINQ return when the results are empty
... imageUploader: {
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Can existing virtualenv be upgraded gracefully?
... imageUploader: {
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What do the python file extensions, .pyc .pyd .pyo stand for?
...ally the input source code that you've written.
.pyc: This is the compiled bytecode. If you import a module, python will build a *.pyc file that contains the bytecode to make importing it again later easier (and faster).
.pyo: This was a file format used before Python 3.5 for *.pyc files that were ...
How to create materialized views in SQL Server?
... have any ordering in subselects or derived tables (such as with partition by clause), you are out of luck too.
That leaves only very simple scenarios to be utilizing indexed views, something in my opinion can be optimized by creating proper indexes on underlying tables anyway.
I will be thrilled ...
Are static fields inherited?
...
3 in all cases, since the static int total inherited by SomeDerivedClass is exactly the one in SomeClass, not a distinct variable.
Edit: actually 4 in all cases, as @ejames spotted and pointed out in his answer, which see.
Edit: the code in the second question is missing the ...
java: ArrayList - how can i check if an index exists?
...void using try/catch for this kind of work, it will slow down your program by 50% or maybe more.. error checking adds like a strap to your existing code to slow it down.. better to avoid it in critical areas. Checking for length in this case is the best thing you can do, since the index will always ...
Retina displays, high-res background images
...
Do I need to double the size of the .box div to 400px by 400px to
match the new high res background image
No, but you do need to set the background-size property to match the original dimensions:
@media (-webkit-min-device-pixel-ratio: 2),
(min-resolution: 192dpi) {
...
What is the difference between IEqualityComparer and IEquatable?
...uld be the right choice: This interface is supposed to be implemented only by T itself, so that one instance of T has internal knowledge of how to compare itself to another instance of T.
On the other hand, if there are several equally reasonable methods of comparing two Ts for equality, IEqualityC...
How can I efficiently download a large file using Go?
...ive u some codes might help you.
code:
func HTTPDownload(uri string) ([]byte, error) {
fmt.Printf("HTTPDownload From: %s.\n", uri)
res, err := http.Get(uri)
if err != nil {
log.Fatal(err)
}
defer res.Body.Close()
d, err := ioutil.ReadAll(res.Body)
if err != nil...