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PHP “php://input” vs $_POST
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The reason is that php://input returns all the raw data after the HTTP-headers of the request, regardless of the content type.
The PHP superglobal $_POST, only is supposed to wrap data that is either
application/x-www-form-urlencoded (standard content type for...
Passing a 2D array to a C++ function
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@Zack: You're right, there're only really two cases; one is a pointer-to-pointer and other being a single pointer to an integer array of size n i.e. int (*a) [10].
– legends2k
Jul 10 '13 at 10:44
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Using GPU from a docker container?
...the following environment:
Ubuntu 14.04
CUDA 6.5
AWS GPU instance.
Install nvidia driver and cuda on your host
See CUDA 6.5 on AWS GPU Instance Running Ubuntu 14.04 to get your host machine setup.
Install Docker
$ sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys 36A1D786...
open read and close a file in 1 line of code
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You don't really have to close it - Python will do it automatically either during garbage collection or at program exit. But as @delnan noted, it's better practice to explicitly close it for various reasons.
So, what you can do to keep ...
Why use prefixes on member variables in C++ classes
...before a capital letter in a word is reserved.
For example:
_Foo
_L
are all reserved words while
_foo
_l
are not. There are other situations where leading underscores before lowercase letters are not allowed. In my specific case, I found the _L happened to be reserved by Visual C++ 2005 and ...
Difference between Role and GrantedAuthority in Spring Security
...thority as being a "permission" or a "right". Those "permissions" are (normally) expressed as strings (with the getAuthority() method). Those strings let you identify the permissions and let your voters decide if they grant access to something.
You can grant different GrantedAuthoritys (permissions...
What is a plain English explanation of “Big O” notation?
...a notation "Θ" (which is a two-side bound). In my experience, this is actually typical of discussions in non-academic settings. Apologies for any confusion caused.
Big O complexity can be visualized with this graph:
The simplest definition I can give for Big-O notation is this:
Big-O notation is ...
C# binary literals
... @Dai that’s no different than hex literals. In other words, all constants are big endian, but stored little endian on Intel/AMD and most ARMs. 0xDEADBEEF will be stored as 0xEF 0xBE 0xAD 0xDE
– Cole Johnson
Sep 2 '19 at 18:28
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Why is “if not someobj:” better than “if someobj == None:” in Python?
...a __nonzero__ special method (as do numeric built-ins, int and float), it calls this method. It must either return a bool value which is then directly used, or an int value that is considered False if equal to zero.
Otherwise, if the object has a __len__ special method (as do container built-ins, li...
Advantage of creating a generic repository vs. specific repository for each object?
... are any major advantages to creating a generic IRepository interface that all repositories implement, vs. each Repository having its own unique interface and set of methods.
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