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Explain which gitignore rule is ignoring my file
...ge for more details.
Original answer follows:
git does not currently provide anything like this. But after seeing your question I did some googling and found that back in 2009 this feature was requested and partially implemented. After reading the thread, I realised it would not be too much work...
Transaction isolation levels relation with locks on table
...implementation and the algorithm they use: MVCC or Two Phase Locking.
CUBRID (open source RDBMS) explains the idea of this two algorithms:
Two-phase locking (2PL)
The first one is when the T2 transaction tries to change the A record,
it knows that the T1 transaction has already cha...
How to work with complex numbers in C?
...eal part to be INF while the imaginary part is NAN, for instance). That avoids the GCC-specific keyword, though I'm not sure if it actually is portable.
– cleong
Apr 25 '14 at 19:36
...
Why do x86-64 instructions on 32-bit registers zero the upper part of the full 64-bit register?
...r be used. (Making int 64-bit would waste cache footprint and memory bandwidth; x86-64 most efficiently supports 32 and 64-bit operand sizes)
The behaviour for 8 and 16-bit operand sizes is the strange one. The dependency madness is one of the reasons that 16-bit instructions are avoided now. x86...
public friend swap member function
In the beautiful answer to the copy-and-swap-idiom there is a piece of code I need a bit of help:
2 Answers
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What do
...n only be used if this is a Foo[String]
def getStringLength(implicit evidence: A =:= String) = a.length
}
The implicit argument evidence is supplied by the compiler, iff A is String. You can think of it as a proof that A is String--the argument itself isn't important, only knowing that it exis...
TCP: can two different sockets share a port?
...on that server are associated with that same listening port on the server side of the connection. An established connection is uniquely identified by the combination of client-side and server-side IP/Port pairs. Multiple connections on the same server can share the same server-side IP/Port pair as...
Where is a complete example of logging.config.dictConfig?
... why it doesnt work without it (e.g. when changing the blank value to a valid value such as standard
– user9074332
Oct 1 '18 at 16:10
...
How to make my custom type to work with “range-based for loops”?
...le: You must overload pre-++, ensure the initialization expressions are valid, binary != that can be used in a boolean context, unary * that returns something you can assign-initialize range_declaration with, and expose a public destructor.
Doing so in a way that isn't compatible with an iterator is...
Why should we NOT use sys.setdefaultencoding(“utf-8”) in a py script?
... time, when Python scans the environment. It has to be called in a system-wide module, sitecustomize.py, After this module has been evaluated, the setdefaultencoding() function is removed from the sys module.
The only way to actually use it is with a reload hack that brings the attribute back.
A...