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Can C++ code be valid in both C++03 and C++11 but do different things?
...lude N3485 which I link below fixed the undefined behavior of shifting a 1 bit into or past the sign bit. This is also covered in defect report 1457. Howard Hinnant commented on the significance of this change in the thread on Is left-shifting (<<) a negative integer undefined behavior in C++1...
C++ unordered_map using a custom class type as the key
... often.
A fairly good starting point for a hash function is one that uses bit shifting and bitwise XOR to combine the individual hash values. For example, assuming a key-type like this:
struct Key
{
std::string first;
std::string second;
int third;
bool operator==(const Key &o...
Error handling with node.js streams
...ror' event you can listen on, but I want to know some more details about arbitrarily complicated situations.
8 Answers
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Open a file with Notepad in C#
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The second approach is probably a better practice as this will cause the windows Shell to open up your file with it's associated editor. Additionally, if the file specified does not have an association, it'll use the Open With... dialog from windows.
Note to those in the comments, thankyou for yo...
How do I replace a character at a particular index in JavaScript?
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There is no replaceAt function in JavaScript. You can use the following code to replace any character in any string at specified position:
function rep() {
var str = 'Hello World';
str = setCharAt(str,4,'a');
alert(str);
}
function setCharAt(str,index,chr) {
if(index >...
IntelliJ IDEA: Running a shell script as a Run/Debug Configuration
... |
edited Sep 12 '19 at 10:00
answered Sep 11 '19 at 10:17
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How to get a vertical geom_vline to an x-axis of class date?
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on my machine (Win10 with R 3.2.2 and ggplot 1.0.1), I have to coerce the date to POSIXct to get it to align properly: as.POSIXct(as.Date(c("2016-12-01","2017-02-01")))
– Jthorpe
Jul 28 '17 at 17:36
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Execute method on startup in Spring
... yet to see an implementation of Lifecycle or SmartLifecycle after quite a bit of research. I know this is a year old, but skaffman if you have anything you can post that would be much appreciated.
– user4903
Jun 7 '11 at 1:50
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PHP $_SERVER['HTTP_HOST'] vs. $_SERVER['SERVER_NAME'], am I understanding the man pages correctly?
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That’s probably everyone’s first thought. But it’s a little bit more difficult. See Chris Shiflett’s article SERVER_NAME Versus HTTP_HOST.
It seems that there is no silver bullet. Only when you force Apache to use the canonical name you will always get the right server name with SE...
How can I implement an Access Control List in my Web MVC application?
...ils and provide the ACL only with what it needs, which will also make it a bit more unit-testing friendly:
$command = array( get_class($this->target), $method );
/* -- snip -- */
$this->acl->isAllowed( $this->target->getPermissions(), $command )
Couple videos that might help you t...