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Should you declare methods using overloads or optional parameters in C# 4.0?
... operate on many different argument types (just one of examples), and does castings internally, for instance; you just feed it with any data type that makes sense (that is accepted by some existing overload). Can't beat that with optional arguments.
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What does the explicit keyword mean?
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A a4 = A("Venditti");
A* p = new A(1);
A a5 = (A)1;
A a6 = static_cast<A>(1);
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comparing 2 strings alphabetically for sorting purposes
...erBool ? 1 : -1;
});
Note: Be careful for upper letters, you may need to cast your string to lower case due to your purpose.
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Fastest way to convert Image to Byte array
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Unable to cast object of type 'System.Byte[]' to type 'System.Drawing.Image'.
– user123
Jun 18 '14 at 12:26
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What exactly do “u” and “r” string flags do, and what are raw string literals?
...by calling unicode('text')
So u is just a short way to call a function to cast str to unicode. That's it!
Now the r part, you put it in front of the text to tell the computer that the text is raw text, backslash should not be an escaping character. r'\n' will not create a new line character. It's ...
Is Meyers' implementation of the Singleton pattern thread safe?
.../ call placement new on s to construct it
}
return (*(reinterpret_cast<Singleton*>( &s)));
}
So here's a simple thread-safe Singleton (for Windows). It uses a simple class wrapper for the Windows CRITICAL_SECTION object so that we can have the compiler automatically initialize ...
Are there any disadvantages to always using nvarchar(MAX)?
...ost everything, from index to delete, update and inserts. "
http://sqlblogcasts.com/blogs/simons/archive/2006/02/28/Why-use-anything-but-varchar_2800_max_2900_.aspx
Integration implications - hard for other systems to know how to integrate with your database
Unpredictable growth of data
Possible s...
What is the difference between char array and char pointer in C?
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static char __unnamed[] = "abc";
char *c = __unnamed;
Note the implicit cast from char[] to char *, which is always legal.
Then if you modify c[0], you also modify __unnamed, which is UB.
This is documented at 6.4.5 "String literals":
5 In translation phase 7, a byte or code of value zero i...
How to convert comma-delimited string to list in Python?
...the case of integers that are included at the string, if you want to avoid casting them to int individually you can do:
mList = [int(e) if e.isdigit() else e for e in mStr.split(',')]
It is called list comprehension, and it is based on set builder notation.
ex:
>>> mStr = "1,A,B,3,4"
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How to parameterize @Scheduled(fixedDelay) with Spring 3.0 expression language?
...ationBean.stringValue}"/>
</task:scheduled-tasks>
... or if the cast from String to Long didn't work, something like this would:
<task:scheduled-tasks scheduler="myScheduler">
<task:scheduled ref="someObject" method="readLog"
fixed-rate="#{T(java.lang.Long).value...