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How to make a variadic macro (variable number of arguments)
...eceding comma in case the variable-argument list is empty, eg. FOO("a") expands to printf("a"). This is an extension of gcc (and vc++, maybe), C99 requires at least one argument to be present in place of the ellipsis.
– jpalecek
Mar 26 '09 at 20:20
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Call static method with reflection
...f the method resides in an ancestor class.
– J. Ouwehand
Jun 8 '19 at 14:51
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How to implement the --verbose or -v option into a script?
I know the --verbose or -v from several tools and I'd like to implement this into some of my own scripts and tools.
9 A...
Differences and relationship between glActiveTexture and glBindTexture
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All About OpenGL Objects
The standard model for OpenGL objects is as follows.
Objects have state. Think of them as a struct. So you might have an object defined like this:
struct Object
{
int count;
float opacity;
char *name;
};
The object ...
Iterate two Lists or Arrays with one ForEach statement in C#
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This is known as a Zip operation and will be supported in .NET 4.
With that, you would be able to write something like:
var numbers = new [] { 1, 2, 3, 4 };
var words = new [] { "one", "two", "three", "four" };
var numbersAndWords = numbers.Zip(words, (n,...
Understanding CUDA grid dimensions, block dimensions and threads organization (simple explanation) [
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Hardware
If a GPU device has, for example, 4 multiprocessing units, and they can run 768 threads each: then at a given moment no more than 4*768 threads will be really running in parallel (if you planned more threads, they will be waiting their turn).
Software
threads are organized in bloc...
Why does using an Underscore character in a LIKE filter give me all the results?
...ith the escape keyword. For details see this link on Oracle Docs.
The '_' and '%' are wildcards in a LIKE operated statement in SQL.
The _ character looks for a presence of (any) one single character. If you search by columnName LIKE '_abc', it will give you result with rows having 'aabc', 'xabc',...
Generic deep diff between two objects
I have two objects: oldObj and newObj .
20 Answers
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Using AES encryption in C#
...soft.com/en-us/library/system.security.cryptography.rijndaelmanaged.aspx
And just in case you need the sample in a hurry, here it is in all its plagiarized glory:
using System;
using System.IO;
using System.Security.Cryptography;
namespace RijndaelManaged_Example
{
class RijndaelExample
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Avoid duplicates in INSERT INTO SELECT query in SQL Server
...ng to be faster than sub-selects. Perhaps that is for straight joins only, and not applicable to left joins.
– Duncan
Mar 25 '10 at 6:55
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