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How to check that an element is in a std::set?
...e in many STL containers such as std::map, std::set, ... is:
const bool is_in = container.find(element) != container.end();
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Preserve Line Breaks From TextArea When Writing To MySQL
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HirveshHirvesh
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When should you use constexpr capability in C++11?
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answered Jan 20 '11 at 14:32
Konrad RudolphKonrad Rudolph
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What is “rvalue reference for *this”?
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XeoXeo
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mongodb count num of distinct values per field/key
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expertexpert
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What is this 'Lambda' everyone keeps speaking of?
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IllidanS4 wants Monica back
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answered Jul 6 '09 at 10:18
Ionuț G. StanIonuț ...
How To Change DataType of a DataColumn in a DataTable?
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DataTable dtCloned = dt.Clone();
dtCloned.Columns[0].DataType = typeof(Int32);
foreach (DataRow row in dt.Rows)
{
dtCloned.ImportRow(row);
}
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Make a div fill up the remaining width
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answered Feb 2 '11 at 11:32
LeighLeigh
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Unit testing that events are raised in C# (in order)
...n, you can easily extend your existing test:
[TestMethod]
public void Test_ThatMyEventIsRaised()
{
List<string> receivedEvents = new List<string>();
MyClass myClass = new MyClass();
myClass.PropertyChanged += delegate(object sender, PropertyChangedEventArgs e)
{
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What is the most efficient way to loop through dataframes with pandas? [duplicate]
...if close is a 1-d array, and you want the day-over-day percent change,
pct_change = close[1:]/close[:-1]
This computes the entire array of percent changes as one statement, instead of
pct_change = []
for row in close:
pct_change.append(...)
So try to avoid the Python loop for i, row in en...