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Constants in Objective-C
...e of using string constants instead of #define'd constants is that you can test for equality using pointer comparison (stringInstance == MyFirstConstant) which is much faster than string comparison ([stringInstance isEqualToString:MyFirstConstant]) (and easier to read, IMO).
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XMLHttpRequest cannot load file. Cross origin requests are only supported for HTTP
...riting HTML and Javascript in a code editor on your personal computer, and testing the output in your browser, you will probably get error messages about Cross Origin Requests. Your browser will render HTML and run Javascript, jQuery, angularJs in your browser without needing a server set up. But ...
How should I organize Python source code? [closed]
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Unfortunately the article is a dead link now :-(. The latest archived version is here: web.archive.org/web/20190714164001/http://…
– Igor Brejc
Apr 1 at 4:10
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Get connection string from App.config
...n =
System.Configuration.ConfigurationManager.
ConnectionStrings["Test"].ConnectionString;
Your assembly also needs a reference to System.Configuration.dll
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Correct use of transactions in SQL Server
...s rolled back:
BEGIN TRANSACTION [Tran1]
BEGIN TRY
INSERT INTO [Test].[dbo].[T1] ([Title], [AVG])
VALUES ('Tidd130', 130), ('Tidd230', 230)
UPDATE [Test].[dbo].[T1]
SET [Title] = N'az2' ,[AVG] = 1
WHERE [dbo].[T1].[Title] = N'az'
COMMIT TRANSACTION [Tran1]
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Only mkdir if it does not exist [duplicate]
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Do a test
[[ -d dir ]] || mkdir dir
Or use -p option:
mkdir -p dir
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Performance of Java matrix math libraries? [closed]
...range of operations, there are a few clear leaders as can be seen in the latest performance results (October 2013).
If you are working with "large" matrices and can use native libraries, then the clear winner (about 3.5x faster) is MTJ with system optimised netlib. If you need a pure Java solution ...
Sorting multiple keys with Unix sort
...y numeric and dictionary order, columns 5 and after as dictionary order
~/test>sort -t, -k1,1n -k2,2n -k3,3d -k4,4n -k5d sort.csv
1,10,b,22,Ga
2,2,b,20,F
2,2,b,22,Ga
2,2,c,19,Ga
2,2,c,19,Gb,hi
2,2,c,19,Gb,hj
2,3,a,9,C
~/test>cat sort.csv
2,3,a,9,C
2,2,b,20,F
2,2,c,19,Gb,hj
2,2,c,19,Gb,hi
2,...
Is there a way to instantiate objects from a string holding their class name?
...ual ~Base(){cout <<"Base destructor\n";}
};
#endif /* COMMON_H_ */
test1.h:
/*
* test1.h
*
* Created on: 28-Dec-2015
* Author: ravi.prasad
*/
#ifndef TEST1_H_
#define TEST1_H_
#include "common.h"
class test1: public Base{
int m_a;
int m_b;
public:
test1(int a=0, int...
How do you mock out the file system in C# for unit testing?
...e any libraries or methods to mock out the file system in C# to write unit tests? In my current case I have methods that check whether certain file exists and read the creation date. I may need more than that in future.
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