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What is the correct way of using C++11's range-based for?
... copy ctor.
3 X copy ctor.
5 X copy ctor.
7 X copy ctor.
9
As it can be read from the output, copy constructor calls are made during range-based for loop iterations.
This is because we are capturing the elements from the container by value
(the auto x part in for (auto x : v)).
This is ineffici...
html onchange event not working
...t doesn't work. I still need to press the submit button to make it work. I read about AJAX and I am thinking to learn about this. Do I still need AJAX to make it work or is simple JavaScript enough? Please help.
...
How to split csv whose columns may contain ,
...leIO.TextFieldParser class. This will handle parsing a delimited file, TextReader or Stream where some fields are enclosed in quotes and some are not.
For example:
using Microsoft.VisualBasic.FileIO;
string csv = "2,1016,7/31/2008 14:22,Geoff Dalgas,6/5/2011 22:21,http://stackoverflow.com,\"Corv...
How to change the session timeout in PHP?
...d for EXACTLY 1 hour
session_set_cookie_params(3600);
session_start(); // ready to go!
This works by configuring the server to keep session data around for at least one hour of inactivity and instructing your clients that they should "forget" their session id after the same time span. Both of thes...
Get top 1 row of each group
... (where each could have several numbers). This is where Apply excels. Less reads = less disk access = better performance. Given my experience is with poorly designed non-normalized databases.
– TamusJRoyce
Jun 5 '16 at 17:36
...
What is difference between CrudRepository and JpaRepository interfaces in Spring Data JPA?
...o gain more fine-grained control over the methods expose, e.g. to create a ReadOnlyRepository that doesn't include the save(…) and delete(…) methods of CrudRepository.
The solution to both of these downsides is to craft your own base repository interface or even a set of them. In a lot of appl...
What does void* mean and how to use it?
Today when I was reading others' code, I saw something like void *func(void* i); , what does this void* mean here for the function name and for the variable type, respectively?
...
What are the uses of “using” in C#?
...ult is not the same. If you use the using, the variable built inside it is readonly. There is no way to achieve this for local variables without the using statement.
– Massimiliano Kraus
Nov 24 '17 at 16:08
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How to create an array from a CSV file using PHP and the fgetcsv function
... put more error checking in there in case fopen() fails, but this works to read a CSV file line by line and parse the line into an array.
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How do I ZIP a file in C#, using no 3rd-party APIs?
...rowse the package from Windows Explorer or programmatically decompress and read its contents.
More information on the [Content_Types].xml file can be found here: http://msdn.microsoft.com/en-us/magazine/cc163372.aspx
Here is a sample of the [Content_Types].xml (must be named exactly) file:
<?...