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How to implement an STL-style iterator and avoid common pitfalls?
...requirements for an iterator to be "STL-style" and what are some other pitfalls to avoid (if any)?
8 Answers
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HttpSecurity, WebSecurity and AuthenticationManagerBuilder
...icationManagerBuilder) is used to establish an authentication mechanism by allowing AuthenticationProviders to be added easily: e.g. The following defines the in-memory authentication with the in-built 'user' and 'admin' logins.
public void configure(AuthenticationManagerBuilder auth) {
auth
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Creating a directory in CMake
... make_directory. For example:
add_custom_target(build-time-make-directory ALL
COMMAND ${CMAKE_COMMAND} -E make_directory ${directory})
At install time
To create a directory at install time,
install(DIRECTORY DESTINATION ${directory})
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CSS selector by inline style attribute
...will stop matching values that don't contain the space, unless you include all the permutations, ad nauseum. But if you're working with a document in which the inline style declarations themselves are unlikely to change at all, you should be fine.
Note also that this is not at all selecting element...
Hidden Features of PHP? [closed]
...and getting a reference most of the time is great.
– Allain Lalonde
Sep 14 '08 at 17:46
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This is...
What is an SDL renderer?
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SDL_Window
SDL_Window is the struct that holds all info about the Window itself: size, position, full screen, borders etc.
SDL_Renderer
SDL_Renderer is a struct that handles all rendering. It is tied to a SDL_Window so it can only render within that SDL_Window. It als...
Multiple Models in a single django ModelForm?
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But how? Usually a FormView only has a single form_class assigned to it.
– erikbwork
Oct 7 '16 at 17:42
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What's the bad magic number error?
...the pyc file or trying to run a pyc from a different version of python (usually later) than your interpreter.
If they are your pyc files, just delete them and let the interpreter re-compile the py files. On UNIX type systems, that could be something as simple as:
rm *.pyc
or:
find . -name '*.py...
Update a column value, replacing part of a string
... clause optimizes the query to only modify the rows with certain URL. Logically, the result will be the same, but the addition of WHERE will make the operation faster.
– Dmytro Shevchenko
Aug 14 '15 at 14:34
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C++ Redefinition Header Files (winsock2.h)
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I'm not including <windows.h> at all, I know <winsock2.h> does its for me.
– akif
Sep 3 '09 at 11:26
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