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Are there any downsides to passing structs by value in C, rather than passing a pointer?
...ass-by-value. they relate to returning structs which is a different thing altogether. Returning things by reference is usually a sure-fire way of shooting yourself in both feet. int &bar() { int f; int &j(f); return j;};
– Roddy
Dec 8 '11 at 10:17
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How to change navbar collapse threshold using Twitter bootstrap-responsive?
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Bootstrap > 2.1 && < 3
Use the less version of bootstrap
Change the @navbarCollapseWidth variable in variables.less
Recompile.
Update 2013: The easy way
Visit http://getbootstrap.com/customize/#less-variables
Change @navbarCollapseWidt...
Remove redundant paths from $PATH variable
...shrc. If you want to change the PATH for a specific user edit it in /home/<the name of the user>/.bashrc file. the /etc/bash.bashrc applies to all users.
– hovanessyan
Jul 25 '12 at 13:59
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JavaScript variable number of arguments to function
...ure, just use the arguments object.
function foo() {
for (var i = 0; i < arguments.length; i++) {
console.log(arguments[i]);
}
}
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How to use MySQL DECIMAL?
... type that represents approximate numeric data values. When using DECIMAL(<1-65>, <0-30>), the first parameter is the number of digits, the second the number of digits to the right of the decimal point.
– Norbert
Mar 30 '12 at 9:44
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Set operations (union, intersection) on Swift array?
....
let array1 = ["a", "b", "c"]
let array2 = ["a", "b", "d"]
let set1:Set<String> = Set(array1)
let set2:Set<String> = Set(array2)
Swift 3.0+ can do operations on sets as:
firstSet.union(secondSet)// Union of two sets
firstSet.intersection(secondSet)// Intersection of two sets
firstS...
“Conversion to Dalvik format failed with error 1” on external JAR
...ava, then you will be getting the exact same error. This means, you have multiple references to the same file A.java and can't properly build it.
In other ways this may be occurred if you accidentally or knowingly edit/ add any thing in the class path file manually .In certain cases we may add andr...
Unmarshaling nested JSON objects
...ebrowsing v4 API sbserver proxy server: https://play.golang.org/p/4rGB5da0Lt
// this example shows how to unmarshall JSON requests from the Safebrowsing v4 sbserver
package main
import (
"fmt"
"log"
"encoding/json"
)
// response from sbserver POST request
type Results struct {
Ma...
Rails respond_with: how does it work?
... commit dated Aug 2014). While responders is not included in Rails by default, it is a dependency of Devise, and thus available in many Rails applications.
The #respond_to instance method, however, is still a part of Rails (5.2rc1 as of this writing).
The official Rails API documentation for Actio...
How to permanently add a private key with ssh-add on Ubuntu? [closed]
... As it turns out, it could just be ssh-add &>/dev/null as the default behavior of ssh-add appears to be to add the keys it finds in your .ssh folder.
– Aaron
Aug 24 '12 at 13:43
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