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Is returning by rvalue reference more efficient?
...p;b) {
return std::move(a < b? a: b);
}
int main() {
const std::string s = min_(std::string("A"), std::string("B"));
fprintf(stderr, "min: %s\n", s.c_str());
return 0;
}
As an interesting observation, on my machine clang++ -O3 generates 54 instructions for code above versus 62 ins...
Iterate over object keys in node.js
...d normally do {add = add.substr(0, level)} of a precreated multi-tab [add] string here, but Sublime keeps replacing with spaces, even with the ["translate_tabs_to_spaces": false] setting!!! (angry)
add += "\t";
}
for (var i = 0; i < len; i++)
{
prop = obj[keys[i]];
...
The import android.support cannot be resolved
...4.jar file, usually the path for the Jar file is :
YOUR_DRIVE\android-sdks\extras\android\support\v4\android-support-v4.jar
After adding android-support-v4.jar Library, navigate to the Order and Export tab and put check mark on the android-support-v4 Library file.
After doing the above, Clean the P...
Best data type for storing currency values in a MySQL database
...ecimal(19,4) both use 9 bytes of storage, so might as well spring for that extra 9 digits of scale.
– Adam Nofsinger
Mar 24 '10 at 14:50
1
...
Difference between == and ===
...ook at example:
class Person : Equatable {
let ssn: Int
let name: String
init(ssn: Int, name: String) {
self.ssn = ssn
self.name = name
}
static func == (lhs: Person, rhs: Person) -> Bool {
return lhs.ssn == rhs.ssn
}
}
P.S.: Since ssn(social s...
How to intercept all AJAX requests made by different JS libraries
... for other reasons.
And, the only performance impact is really only one extra function call for each .open() plus whatever code you execute yourself which is probably immaterial when a networking call is involved.
In IE, this won't catch any code that tries to use the ActiveXObject control met...
Visual C++: How to disable specific linker warnings?
... from the fact that it can't be turned off. (Noted here since there's zero extra information at that link.)
– Ben M
Dec 7 '12 at 21:14
...
The performance impact of using instanceof in Java
...e how instanceOf performance is comparing to a simple s.equals() call to a string object with only one letter.
in a 10.000.000 loop the instanceOf gave me 63-96ms, and the string equals gave me 106-230ms
I used java jvm 6.
So in my simple test is faster to do a instanceOf instead of a one charact...
How do I assign a port mapping to an existing Docker container?
...) or hacking hostconfig.json file(at least not officially introduced). The extra container just exposes your business container's internal port, rather than makeing any changes to it.
– Sean C.
Mar 10 '18 at 10:59
...
Super slow lag/delay on initial keyboard animation of UITextField
... @Vadoff Solution works, but have 2 minuses: 1) I have about 1 extra second of app loading; 2) Received memory warning (but, not all the time). I tried to add this code to UIViewController in viewDidLoad, but had no effect, maybe I made something wrong? Could you edit your answer and ad...