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How to print out the contents of a vector?
...pes, if they are available and appropriate. std::vector has a member type called size_type for this job: it is the type returned by the size method.
// Path typedef'd to std::vector<char>
for( Path::size_type i=0; i<path.size(); ++i)
std::cout << path[i] << ' ';
Why not just ...
Word wrap for a label in Windows Forms
...The big problem here is that the label will not change its height automatically (only width). To get this right you will need to subclass the label and include vertical resize logic.
Basically what you need to do in OnPaint is:
Measure the height of the text (Graphics.MeasureString).
If the label...
The communication object, System.ServiceModel.Channels.ServiceChannel, cannot be used for communicat
What is this error all about, and how would I go about solving it?
14 Answers
14
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Make xargs execute the command once for each line of input
...per command line.
Trailing blanks cause an input line to be logically continued on
the next input line. Implies -x.
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Pandas DataFrame Groupby two columns and get counts
...er,
You need to provide one more column which counts the grouping, let's call that column as, "COUNTER" in dataframe.
Like this:
df['COUNTER'] =1 #initially, set that counter to 1.
group_data = df.groupby(['Alphabet','Words'])['COUNTER'].sum() #sum function
print(group_data)
OUTPUT:
...
JPA and Hibernate - Criteria vs. JPQL or HQL
...dynamic queries. For example it is much easier to add some ordering dynamically or leave some parts (e.g. restrictions) out depending on some parameter.
On the other hand I'm using HQL for static and complex queries, because it's much easier to understand/read HQL. Also, HQL is a bit more powerful...
HTML: How to limit file upload to be only images?
...t="image/*". But we can still change it from the dropdown and it will show all files. So the Javascript part validates whether or not the selected file is an actual image.
<div class="col-sm-8 img-upload-section">
<input name="image3" type="file" accept="image/*" id="menu_images"/>...
Find indices of elements equal to zero in a NumPy array
... As of numpy 1.16, the documentation for numpy.where specifically recommends using numpy.nonzero directly rather than calling where with only one argument.
– jirassimok
Jul 18 '19 at 21:54
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How to create a WPF Window without a border that can be resized via a grip only?
...
If you set the AllowsTransparency property on the Window (even without setting any transparency values) the border disappears and you can only resize via the grip.
<Window
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presenta...
When should I really use noexcept?
...n it's obvious that the function will never throw.
When can I realistically expect to observe a performance improvement after using noexcept? [...] Personally, I care about noexcept because of the increased freedom provided to the compiler to safely apply certain kinds of optimizations.
It se...