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C++ map access discards qualifiers (const)
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std::map's operator [] is not declared as const, and cannot be due to its behavior:
T& operator[] (const Key& key)
Returns a reference to the value that is mapped to a key equivalent to key, performing insertion if such key does not already exist.
As a r...
In SQL Server, when should you use GO and when should you use semi-colon ;?
...’ve always been confused with when I should use the GO keyword after commands and whether a semi-colon is required at the end of commands. What is the differences and why/when I should use them?
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How can I change the image displayed in a UIImageView programmatically?
...BOutlet to a UIImageView already, then all you have to do is grab an image and call setImage on the receiver (UIImageView). Two examples of grabbing an image are below. One from the Web, and one you add to your Resources folder in Xcode.
UIImage *image = [[UIImage alloc] initWithData:[NSData dataWi...
How to insert a newline in front of a pattern?
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This works in bash and zsh, tested on Linux and OS X:
sed 's/regexp/\'$'\n/g'
In general, for $ followed by a string literal in single quotes bash performs C-style backslash substitution, e.g. $'\t' is translated to a literal tab. Plus, sed ...
A Space between Inline-Block List Items [duplicate]
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I have seen this and answered on it before:
After further research I have
discovered that inline-block is a
whitespace dependent method and
is dependent on the font setting. In this case 4px is rendered.
To avoid this you could run all ...
How to split a comma-separated value to columns
...his should not be the accepted answer... A multi-statement TVF (very bad!) and a WHILE loop (even worse) together will perform awfully. Besides, this is a code-only answer and does not even solve the issue There are much better approaches around! For SQL-Server 2016+ look for STRING_SPLIT() (which d...
How to keep environment variables when using sudo
When I use any command with sudo the environment variables are not there. For example after setting HTTP_PROXY the command wget works fine without sudo . However if I type sudo wget it says it can't bypass the proxy setting.
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Best way to compare 2 XML documents in Java
...tion that basically translates a custom message format into an XML message and sends it out the other end. I've got a good set of input/output message pairs so all I need to do is send the input messages in and listen for the XML message to come out the other end.
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Why can't we have static method in a (non-static) inner class?
... I know an inner class is associated with an instance of its outer class and I know that it's kinda useless that we become able to declare static members within an inner class but I am still asking why not an inner class can declare static members?
– Kareem
S...
Overflow to left instead of right
...e number as the user types it. The text inside the div is aligned to right and incoming characters are added to right as the text grows to left.
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