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How do pointer to pointers work in C?
...e a pointer to a 2 dimensional array instead.
Why it's dangerous?
void test()
{
double **a;
int i1 = sizeof(a[0]);//i1 == 4 == sizeof(double*)
double matrix[ROWS][COLUMNS];
int i2 = sizeof(matrix[0]);//i2 == 240 == COLUMNS * sizeof(double)
}
Here is an example of a pointer to a 2 dime...
What is Rack middleware?
...-19 22:39:26] INFO WEBrick::HTTPServer#start: pid=16121 port=9292
Let's test our new JSON server by either curling or visiting the url http://localhost:9292/hello.json and voila:
$ curl http://localhost:9292/hello.json
{ message: "Hello!" }
It works. Great! That's the basis for every web frame...
The difference between fork(), vfork(), exec() and clone()
... (and POSIX.1-2008 removes vfork from the spec entirely). If you happen to test your code on a system that synonymizes them (e.g. most post-4.4 BSDs aside from NetBSD, pre-2.2.0-pre6 Linux kernels, etc.), it may work even if you violate the vfork contract, then explode if you run it elsewhere. Some ...
App.Config Transformation for projects which are not Web Projects in Visual Studio?
... and Deployment projects in VS 2010
Works with VS2010, 2013, 2015 (didn't test 2012 although should work as well).
Works with Team Build. (You must install either A) Visual Studio or B) Microsoft.Web.Publishing.targets and Microsoft.Web.Publishing.Tasks.dll)
This solution works by performing the...
PHP $_SERVER['HTTP_HOST'] vs. $_SERVER['SERVER_NAME'], am I understanding the man pages correctly?
...ng on HTTPS (unless you're running on a non-standard port, which I haven't tested).
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const vs constexpr on variables
...
I am sure as far as the examples I wrote go (tested each of them before posting). However my compiler does let me convert PI1 to a compile-time integral constant for use in an array, but not for use as a non-type integral template parameter. So the compile-time conver...
How to make an array of arrays in Java
...eight];
_buffer = new LinkedList<T>();
}
/**
* Tests the existence of the encapsulated object
* /!\ This DOES NOT ensure that the object will be available on next call !
* @param x
* @param y
* @return
* @throws IndexOutOfBoundsException
*/pu...
Failed to execute 'btoa' on 'Window': The string to be encoded contains characters outside of the La
The error in the title is thrown only in Google Chrome, according to my tests. I'm base64 encoding a big XML file so that it can be downloaded:
...
64-bit version of Boost for 64-bit windows
... Boost supports VS2017 compiler from a certain version above. I used the latest version (1.65.1).
I used this scripts for building boost for x64 and x86 platforms, lib and dll, debug and release for VS2017, VS2015 and VS2013:
md stage\VS2017\x64
md stage\VS2015\x64
md stage\VS2013\x64
b2 --st...
How to check if PHP array is associative or sequential?
...; '3' ); One potential work around is running ksort($arr) before doing the test
– Scott
Jun 5 '13 at 21:58
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