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Difference between binary semaphore and mutex
...ion semaphores are used to protect shared resources (data structure, file, etc..).
A Mutex semaphore is "owned" by the task that takes it. If Task B attempts to semGive a mutex currently held by Task A, Task B's call will return an error and fail.
Mutexes always use the following sequence:
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Using Excel OleDb to get sheet names IN SHEET ORDER
...is a german file (Arbeitsblätter = worksheets).
The table names (Tabelle3 etc) are in the correct order. You just need to read these tags;)
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Python TypeError: not enough arguments for format string
...ome code examples of how your solution works, and how it fails without it, etc. might be useful. See How do I write a good answer?. Note that this is a 5 year old question, so you should add an answer only if it provides significantly more information than those already there.
–...
The shortest possible output from git log containing author and date
...he output is to something other than the tty (which is useful for grepping etc.)
git log -g now contains the reflog selector.
Save 2 parens on refnames and put them at the end (to preserve column alignment)
Truncate relative dates if they are too long (e.g. 3 years, 4..)
Truncate commiter names (mig...
Best way to reverse a string
...uld the result of most implementations based on code units (Array.Reverse, etc) or even code points (reversing with special care for surrogate pairs).
using System;
using System.Collections.Generic;
using System.Globalization;
using System.Linq;
public static class Test
{
private static IEnume...
Python 3.x rounding behavior
...context for the Decimal module that does this for you implicitly. See the setcontext() function.
– kindall
May 31 '12 at 21:04
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Difference between Inheritance and Composition
...at can be fueled, regardless of whether it's a car, boat, stove, barbecue, etc. Interfaces mandate that classes that say they implement that interface actually have the methods that that interface is all about. For example,
iFuelable Interface:
void AddSomeFuel()
void UseSomeFuel()
int...
How to optimize imports automatically after each save in IntelliJ IDEA
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@JoachimSauer how can you define this order of imports, etc. in IntelliJ please ?
– riroo
Dec 28 '16 at 9:31
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Find running median from a stream of integers
...riance of the input is statistically distributed (e.g. normal, log-normal, etc.) then reservoir sampling is a reasonable way of estimating percentiles/medians from an arbitrarily long stream of numbers.
int n = 0; // Running count of elements observed so far
#define SIZE 10000
int reservoir[SIZE...
NSOperation vs Grand Central Dispatch
... answer. All the benefits of NSOperationQueue (dependencies, debugability, etc.) apply to block operations too.
– BJ Homer
Apr 30 '12 at 4:40
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