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Get a substring of a char* [duplicate]
...that string data without copying it. If you take a pointer to the section from the original string you need to know the length as it will have no null terminator (Without affecting the original string).
– Goz
Nov 12 '13 at 6:56
...
Creating an object: with or without `new` [duplicate]
...ray that it did not new. In fact, nothing newd the C-style string; it came from a string literal. deleteing that is an error (albeit one that will not generate a compilation error, but instead unpredictable behaviour at runtime).
Usually an object should not have the responsibility of deleteing any...
Should a retrieval method return 'null' or throw an exception when it can't produce the return value
...
reminds me the find and findOrFail from Laravel Eloquent
– javier_domenech
May 31 '18 at 12:00
...
Difference between web server, web container and application server
...eb Server:
It provides HTTP Request and HTTP response.
It handles request from client only through HTTP protocol.
It contains Web Container.
Web Application mostly deployed on web Server.
EX: Servlet JSP
Web Container:
it maintains the life cycle for Servlet Object.
Calls the service method for th...
How to check if a file is a valid image file?
...
I have just found the builtin imghdr module. From python documentation:
The imghdr module determines the type
of image contained in a file or byte
stream.
This is how it works:
>>> import imghdr
>>> imghdr.what('/tmp/bass')
'gif'
Using a m...
What are “decorators” and how are they used?
...corates them? In other words, say I have module A that decorates a service from module B. I then have module C that depends upon module A and module B. Inside of module C, is the service from module B the original or decorated version?
– Jon Jaques
Feb 26 '14 a...
What is the maximum length of a URL in different browsers?
...r site to work for the majority of
Internet users.
(Note: this is a quote from an article written in 2006, but in 2015 IE's declining usage means that longer URLs do work for the majority. However, IE still has the limitation...)
Internet Explorer's limitations...
IE8's maximum URL length is 2083 c...
How does RewriteBase work in .htaccess
...r developers reading your rules will grasp these more easily.
Quoting from Jon Lin's excellent in-depth answer here:
In an htaccess file, mod_rewrite works similar to a <Directory> or <Location> container. and the RewriteBase is used to provide a relative path base.
For example, s...
Disable hover effects on mobile browsers
I'm writing a Web site that's meant to be used from both desktops and tablets. When it's being visited from a desktop, I want the clickable areas of the screen to light up with :hover effects (different background color, etc.) With a tablet, there's no mouse, so I don't want any hover effects.
...
Why use non-member begin and end functions in C++11?
...cialArray::valueAt(int);
to iterate over it's values you need to inherit from this class and define begin() and end() methods for cases when
auto i = v.begin();
auto e = v.end();
But if you always use
auto i = begin(v);
auto e = end(v);
you can do this:
template <>
SpecialArrayItera...