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What is the fastest/most efficient way to find the highest set bit (msb) in an integer in C?
...
GCC has:
-- Built-in Function: int __builtin_clz (unsigned int x)
Returns the number of leading 0-bits in X, starting at the most
significant bit position. If X is 0, the result is undefined.
-- Built-in Function: int __builtin...
C# Sanitize File Name
... into account Spud's comment on reserved words, I made this version:
/// <summary>
/// Strip illegal chars and reserved words from a candidate filename (should not include the directory path)
/// </summary>
/// <remarks>
/// http://stackoverflow.com/questions/309485/c-sharp-saniti...
Jackson databind enum case insensitive
... public static void main(String[] args) throws IOException {
List<DataType> types = Arrays.asList(JSON, HTML);
ObjectMapper mapper = new ObjectMapper();
SimpleModule module = new SimpleModule();
module.setDeserializerModifier(new BeanDeserializerModifier() {
...
How do I check if a string is unicode or ascii?
...n Python 2:
>>> type(u'abc') # Python 2 unicode string literal
<type 'unicode'>
>>> type('abc') # Python 2 byte string literal
<type 'str'>
In Python 2, str is just a sequence of bytes. Python doesn't know what
its encoding is. The unicode type is the safer way t...
Fastest way to determine if an integer is between two integers (inclusive) with known sets of values
Is there a faster way than x >= start && x <= end in C or C++ to test if an integer is between two integers?
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Why is there no Tree class in .NET?
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You could define your own:
public class MyTree<K, V> : Dictionary<K, MyTree<K, V>>
{
public V Value { get; set; }
}
Or unkeyed:
public class MyTree<V> : HashSet<MyTree<V>>
{
public V Value { get; set; }
}
...
Sort a text file by line length including spaces
...r the input lines. Here is a one liner:
perl -e 'print sort { length($a) <=> length($b) } <>'
You can put this in your pipeline wherever you need it, either receiving STDIN (from cat or a shell redirect) or just give the filename to perl as another argument and let it open the file.
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HashMap to return default value for non-found keys?
Is it possible to have a HashMap return a default value for all keys that are not found in the set?
14 Answers
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Can someone explain Microsoft Unity?
...he container looks like this:
StructureMapConfiguration.ForRequestedType<MyClass>().TheDefaultIsConcreteType<MyClass>();
StructureMapConfiguration.ForRequestedType<IMyService>().TheDefaultIsConcreteType<SomeConcreteService>();
So what you've done is told the container, "W...
Example of UUID generation using Boost in C++
...
A basic example:
#include <boost/uuid/uuid.hpp> // uuid class
#include <boost/uuid/uuid_generators.hpp> // generators
#include <boost/uuid/uuid_io.hpp> // streaming operators etc.
int main() {
boost::uuids::uui...