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What's the difference between using CGFloat and float?
...t, including the kernel and user applications. Apple's 64-bit Transition Guide for Cocoa is a useful resource.
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What does the 'standalone' directive mean in XML?
...nore any markup declarations in the DTD. The DTD is thereafter used for validation only.
As an example, consider the humble <img> tag. If you look at the XHTML 1.0 DTD, you see a markup declaration telling the parser that <img> tags must be EMPTY and possess src and alt attributes. When...
When should Flask.g be used?
... which setup the environment for the request, and should not be handled inside before_request and after_request)
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What is NODE_ENV and how to use it in Express?
...t defaults to "development", which may result in development code being accidentally run in a production environment - it's much safer if your app throws an error if this important value is not set (or if preferred, defaults to production logic as above).
Be aware that if you haven't explicitly set ...
Who is “us” and who is “them” according to Git?
...ture_branch onto the latest master. Therefore, "us" = HEAD, but since git did a new checkout behind-the-scenes to perform this rebase, HEAD is NOT the branch you were on when you typed git rebase master. Instead, us, or HEAD, is some merge-base commit at which point a conflict occurred, and them is ...
What is the purpose of the EBP frame pointer register?
...Greg mentioned, it also helps stack unwinding for a debugger since EBP provides a reverse linked list of stack frames therefore letting the debugger to figure out size of stack frame (local variables + arguments) of the function.
Most compilers provide an option to omit frame pointers although it m...
What is the difference between the remap, noremap, nnoremap and vnoremap mapping commands in Vim?
...nnoremap), one in visual mode (:vmap and :vnoremap) and so on.
For more guidance on this, see:
:help :map
:help :noremap
:help recursive_mapping
:help :map-modes
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Does it make any sense to use inline keyword with templates?
...it Specialization):
#ifndef TPL_H
#define TPL_H
template<class T> void f(T) {}
template<class T> inline T g(T) {}
template<> inline void f<>(int) {} // OK: inline
template<> int g<>(int) {} // error: not inline
#endif
Compile this, et voila:
g++ a.cc b.cc
/tm...
How do I work with a git repository within another repository?
...
Consider using subtree instead of submodules, it will make your repo users life much easier. You may find more detailed guide in Pro Git book.
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Proper way to implement IXmlSerializable?
Once a programmer decides to implement IXmlSerializable , what are the rules and best practices for implementing it? I've heard that GetSchema() should return null and ReadXml should move to the next element before returning. Is this true? And what about WriteXml - should it write a root el...