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Are there benefits of passing by pointer over passing by reference in C++?
...fy the parameter and the value is easy to copy (ints, doubles, char, bool, etc... simple types. std::string, std::vector, and all other STL containers are NOT simple types.)
Pass by const pointer when the value is expensive to copy AND the function does not want to modify the value pointed to AND ...
Create a menu Bar in WPF?
... comprehensive tutorial on WPF Menus, Command Binding adding Shortcut keys etc at youtu.be/bdmVWGjpA_8
– Zaheer
Apr 26 at 1:18
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Having issue with multiple controllers of the same name in my project
...Mvc.Controllers", "My.Second.Namespace", "My.Third.Namespace", "Namespaces.Etc" }
– David Ruttka
Jan 9 '12 at 14:56
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Converting NSString to NSDate (and back again)
...ng "10" for representing a year is not good, because it can be 1910, 1810, etc. You probably should use 4 digits for that.
If you can change the date to something like
yyyymmdd
Then you can use:
// Convert string to date object
NSDateFormatter *dateFormat = [[NSDateFormatter alloc] init];
[date...
What is the argument for printf that formats a long?
...ompiler name and version that you are using and the platform (CPU type, OS etc.) that it is compiling for.
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UIGestureRecognizer on UIImageView
I have a UIImageView , which I want to be able to resize and rotate etc.
8 Answers
8
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Programmatically get the version number of a DLL
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To get it for the assembly that was started (winform, console app, etc...)
using System.Reflection;
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Assembly.GetEntryAssembly().GetName().Version
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ERROR 1396 (HY000): Operation CREATE USER failed for 'jack'@'localhost'
...ving privileges and DROP USER for deleting them:
REVOKE priv1,priv2,priv3,etc... FROM 'jack@localhost'; // remove certain privileges
DROP USER 'jack@localhost'; // completely delete the account
Best to use the tools provided rather than mucking around in the background.
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What is Func, how and when is it used
... use exactly as you would use sqr:
f1(2);
Console.WriteLine(f2(f1(4)));
etc.
Remember though, that it's a delegate, for more advanced info refer to documentation.
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postgresql - sql - count of `true` values
... on a column that uses another column as the predicate, while allowing to fetch differently filtered aggregates in a single query:
select count(*),
sum(otherCol) filter (where myCol)
from tbl;
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