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Why does C++ not allow inherited friendship?
...n? Was friendship really just a limited hack that has since found its way into a few obscure respectable uses?
10 Answers
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What is more efficient? Using pow to square or just multiply it with itself?
...T(2, b*b)
TEST(3, b*b*b)
TEST(4, b*b*b*b)
TEST(5, b*b*b*b*b)
template <int exponent>
double testpow(double base, long loops)
{
double x = 0.0;
boost::posix_time::ptime startTime = now();
for (long i=0; i<loops; ++i)
{
x += std::pow(base, exponent);
x += std...
HashSet vs. List performance
...yed as a graph:
Here's the code:
static void Main(string[] args)
{
int times = 10000000;
for (int listSize = 1; listSize < 10; listSize++)
{
List<string> list = new List<string>();
HashSet<string> hashset = new HashSet<string>();
...
How to create composite primary key in SQL Server 2008
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create table my_table (
column_a integer not null,
column_b integer not null,
column_c varchar(50),
primary key (column_a, column_b)
);
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Difference between case object and object
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Point 3 and 4 of this answer is correct difference between case objects and objects. Point 1 and 2 doesn't matter for singleton objects. And singleton objects are always Products with arity 0 so point 5 doesn't matter also.
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How to deserialize a JObject to .NET object
...um instance
Album album = jalbum.ToObject<Album>();
Documentation: Convert JSON to a Type
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How can I capture the result of var_dump to a string?
...d $return parameter which will cause it to return its output rather than print it:
$debug = var_export($my_var, true);
Why?
I prefer this one-liner to using ob_start and ob_get_clean(). I also find that the output is a little easier to read, since it's just PHP code.
The difference between var...
Is floating point math broken?
...urrency unit is - this often helps with e.g. reducing round-off error when converting "$29.99 a month" to a daily rate - but it should still be fixed-point arithmetic.)
– zwol
May 12 '14 at 22:23
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Using .otf fonts on web browsers
...r Safari, Android and iOS browsers. If your font is a free font, you could convert your font using for example a onlinefontconverter.
@font-face {
font-family: GraublauWeb;
src: url("path/GraublauWebBold.woff") format("woff"), url("path/GraublauWebBold.ttf") format("truetype");
}
If you wa...
How do I get an animated gif to work in WPF?
...bool _isInitialized;
private GifBitmapDecoder _gifDecoder;
private Int32Animation _animation;
public int FrameIndex
{
get { return (int)GetValue(FrameIndexProperty); }
set { SetValue(FrameIndexProperty, value); }
}
private void Initialize()
{
_gi...