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Function to convert column number to letter?
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Cut-and-paste perfect to convert numbers greater than 676. Thanks!
– David Krider
Jul 25 '14 at 14:50
1
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C++ performance challenge: integer to std::string conversion
...ization of the arithmetic code. I shall make another version that doesn't convert to std::string at the end and see whether gcc fares any better.
– Ben Voigt
Dec 4 '10 at 6:06
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Redefining NULL
... for literal zeros in assignments to pointers (or casts to pointers) to be converted into some other magic value such as -1.
Arrange for equality tests between pointers and a constant integer 0 to check for the magic value instead (§6.5.9/6)
Arrange for all contexts in which a pointer type is evalu...
Using LINQ to remove elements from a List
... for( int i = 0; i < size; i++ )
{
ch = Convert.ToChar( Convert.ToInt32( Math.Floor( 26 * random.NextDouble() + 65 ) ) );
builder.Append( ch );
}
return builder.ToString();
}
}
}
Results below:
Be patient, gen...
How to properly compare two Integers in Java?
...r are both of numeric type, or
one is of numeric type and the other
is convertible (§5.1.8) to numeric
type, binary numeric promotion is
performed on the operands (§5.6.2).
and for <, <=, > and >= (JLS 15.20.1)
The type of each of the operands of a
numerical comparison ...
Convert python datetime to epoch with strftime
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If you want to convert a python datetime to seconds since epoch you could do it explicitly:
>>> (datetime.datetime(2012,04,01,0,0) - datetime.datetime(1970,1,1)).total_seconds()
1333238400.0
In Python 3.3+ you can use timestamp(...
How to delete a specific line in a file?
... os.replace (new in python v 3.3) is more cross-platform than a system call to mv.
– 7yl4r
Nov 15 '17 at 15:30
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Joining two lists together
...ne I think so. As previously said, Concat returns a new sequence and while converting the result to List, it does the job perfectly. Implicit conversions may fail sometimes when using the AddRange method.
share
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Difference between float and decimal data type
...nversion functions would often create tons of minute differences in values converted from ASCII to float when compared against those in, say, SQLServer. This is rarely true anymore. Testing is the best policy, as it's best to know for certain what the trade-offs are.
– user1899...
Can a C# lambda expression have more than one statement?
...pression using braces, but only the syntax which doesn't use braces can be converted into an expression tree:
// Valid
Func<int, int> a = x => x + 1;
Func<int, int> b = x => { return x + 1; };
Expression<Func<int, int>> c = x => x + 1;
// Invalid
Expression...