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Tuples( or arrays ) as Dictionary keys in C#
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gabbagabba
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What's the difference between integer class and numeric class in R
..."integer" is a subset of "numeric".
> .Machine$integer.max
[1] 2147483647
> .Machine$double.xmax
[1] 1.797693e+308
Integers only go to a little more than 2 billion, while the other numerics can be much bigger. They can be bigger because they are stored as double precision floating point...
C# XML Documentation Website Link
...eturn IntPtr.Size == 4 ? GetWindowLongPtr32(hwnd, index) : GetWindowLongPtr64(hwnd, index);
}
The results are:
Tooltip:
Shows cref-url with !:, but hides "this"
Hides ahref-url but shows text
Hides seehref url and text
Object Browser:
Shows cref-url with !:, but hides "this" (no...
When is it right for a constructor to throw an exception?
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64
Eric Lippert says there are 4 kinds of exceptions.
Fatal exceptions are not your fault, you c...
Count(*) vs Count(1) - SQL Server
...eries that consume all the memory on the machine (not usually a problem on 64-bit but it was a larger concern back on 32-bit servers). Ultimately, if you get a different plan the performance at runtime would differ. I don't think it is remotely likely that the difference in compilation time would...
How do I vertically center text with CSS? [duplicate]
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danronmoon
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answered Mar 6 '14 at 8:15
DanieldDanield
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Are there any downsides to passing structs by value in C, rather than passing a pointer?
...o dig deep into the assembly land:
(The following example uses gcc on x86_64. Anyone is welcome to add other architectures like MSVC, ARM, etc.)
Let's have our example program:
// foo.c
typedef struct
{
double x, y;
} point;
void give_two_doubles(double * x, double * y)
{
*x = 1.0;
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Timeout command on Mac OS X?
...gle.com >nul
the >nul gets rid of the output. So instead of showing 64 BYTES FROM 123.45.67.8 BLAH BLAH BLAH it'll just show a blank newline until it times out. -t flag can be changed to any number.
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Why does SSL handshake give 'Could not generate DH keypair' exception?
...I set it as preferred provider:
java.lang.ArrayIndexOutOfBoundsException: 64
at com.sun.crypto.provider.TlsPrfGenerator.expand(DashoA13*..)
This is also discussed in one forum thread I found, which doesn't mention a solution.
http://www.javakb.com/Uwe/Forum.aspx/java-programmer/47512/TLS-prob...
How to use MySQL DECIMAL?
...E columns for financial data.
DOUBLE is actually just a double precision (64 bit instead of 32 bit) version of FLOAT. Floating point numbers are approximate representations of real numbers and they are not exact. In fact, simple numbers like 0.01 do not have an exact representation in FLOAT or DOUB...