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How to forward declare a template class in namespace std?
... more template params for std::list (allocator I think). But, that is beside the point. Do I have to know the full template declaration of a template class to be able to forward declare it?
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convert pfx format to p12
..., while P12 was the Netscape one. Both formats have been adapted now to be identical, meaning that developers are able to use the .NET System.Security.Cryptography.X509Certificates namespace to work with both of them. See here for more information.
– SnapShot
...
Closing JDBC Connections in Pool
... the actual connection back to the pool. It's further up to the pool to decide whether the actual connection will actually be closed or be reused for a new getConnection() call. So, regardless of whether you're using a connection pool or not, you should always close all the JDBC resources in reverse...
How can I remove a key and its value from an associative array?
...re, but it's worth noting that if you are trying to perform these edits inside of a foreach loop, then you need to prepend an ampersand to your enumeration variable to allow write access.
– FreeAsInBeer
Jul 30 '12 at 21:20
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How to get position of a certain element in strings vector, to use it as an index in ints vector?
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@Hiraku He did delete his comment. He suggested using ptrdiff_t because it lets you store the distance between any pair of iterators into the same container, even in situations when the result is negative. If we use size_t we must be car...
Where is the documentation for the values() method of Enum?
... a new array, or does it re-use the same one?
– android developer
Jul 5 '16 at 8:35
3
@androiddev...
Read a zipped file as a pandas DataFrame
...ect, rather than read:
In [11]: crime2013 = pd.read_csv(z.open('crime_incidents_2013_CSV.csv'))
In [12]: crime2013
Out[12]:
<class 'pandas.core.frame.DataFrame'>
Int64Index: 24567 entries, 0 to 24566
Data columns (total 15 columns):
CCN 24567 non-null values
REPO...
How to get the original value of an attribute in Rails
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the documentation can be found at apidock.com/rails/ActiveModel/Dirty/attribute_was
– hexinpeter
Jan 21 '16 at 6:07
...
leading zeros in rails
... var channelOptions = {
tags: "".split(" "),
id: "1"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
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HTML span align center not working?
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A div is a block element, and will span the width of the container unless a width is set. A span is an inline element, and will have the width of the text inside it. Currently, you are trying to set align as a CSS property. Align is an attribute.
<span align="center...