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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...
Convert Array to Object
...ectly into a new object: { ...[sortedArray]}
– HappyHands31
Jul 26 '19 at 15:18
4
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Real differences between “java -server” and “java -client”?
Is there any real practical difference between "java -server" and "java -client"?
11 Answers
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What is Full Text Search vs LIKE
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In general, there is a tradeoff between "precision" and "recall". High precision means that fewer irrelevant results are presented (no false positives), while high recall means that fewer relevant results are missing (no false negatives). Using the LIKE operator gives you 100%...
Initialization of all elements of an array to one default value in C++?
...that you used,
int array[100] = {-1};
says "set the first element to -1 and the rest to 0" since all omitted elements are set to 0.
In C++, to set them all to -1, you can use something like std::fill_n (from <algorithm>):
std::fill_n(array, 100, -1);
In portable C, you have to roll your...
What is the difference between a static and a non-static initialization code block
...static from the initializer block, it then becomes an instance initializer and so int a is initialized at construction.
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Failure [INSTALL_FAILED_ALREADY_EXISTS] when I tried to update my application
...me here because I wanted to know whether adb install -r would remove first and then install or upgrade my app. Although adb's description is not very clear (-r: replace existing application), adb install -r does indeed upgrade your app and does not remove your app data. Therefore suitable to test up...
How do I tell git to always select my local version for conflicted merges on a specific file?
Say I'm collaborating with someone via a git repository, and there is a particular file that I never want to accept any external changes to.
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When do we need to set ProcessStartInfo.UseShellExecute to True?
...en a specified program or file - it is roughly equivalnt to typing the command to be executed into the run dialog and clicking OK, which means that it can be used to (for example):
Open .html files or web using the default browser without needing to know what that browser is,
Open a word document w...
XmlWriter to Write to a String Instead of to a File
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You need to create a StringWriter, and pass that to the XmlWriter.
The string overload of the XmlWriter.Create is for a filename.
E.g.
using (var sw = new StringWriter()) {
using (var xw = XmlWriter.Create(sw)) {
// Build Xml with xw.
}
return s...