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Why historically do people use 255 not 256 for database field magnitudes?
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And reading into char foo[256] is important because memory management likes powers of 2. see: stackoverflow.com/questions/3190146/… Allocating char foo[257] will either fragment memory or take up 512 bytes.
– ebyrob
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What does $_ mean in PowerShell?
...e in ForEach-Object or Where-Object you can't use it in something like Get-Foo|Add-Member NoteProperty Bar ($_.SomeProperty) – there's a pipeline involved, but no script block and therefore no $_. (That being said, the PowerShell help also refers to the pipeline for $_. Confusing.)
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How to diff one file to an arbitrary version in Git?
... works for (sub)directories as well, for example git diff <revision>:foo/ HEAD:foo/.
– user456814
Jul 5 '14 at 18:59
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How to define an enum with string value?
...e enum like this..
public enum Test : int {
[StringValue("a")]
Foo = 1,
[StringValue("b")]
Something = 2
}
To get back the value from Attrinbute Test.Foo.GetStringValue();
Refer : Enum With String Values In C#
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How do I extract the contents of an rpm?
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$ mkdir packagecontents; cd packagecontents
$ rpm2cpio ../foo.rpm | cpio -idmv
$ find .
For Reference: the cpio arguments are
-i = extract
-d = make directories
-m = preserve modification time
-v = verbose
I found the answer over here: lontar's answer
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How to pass optional arguments to a method in C++?
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I understand, but what if I were to have int foo(int x, int y = 10, int z = 10) and would want to call foo(1,2), so only giving one optional parameter. I did not seem to be able to get it to work myself.
– Gerard
Apr 24 '14 at 16:3...
How to get request URI without context path?
...pring MVC. It will then represent the MVC framework's internal path (e.g. /foo.xhtml instead of /foo.jsf) and not the actual request URI (the one as enduser would see in browser's address bar). The original servlet path is in such case however resolveable as request attribute with key RequestDispatc...
Difference between DTO, VO, POJO, JavaBeans?
...r transfering unrelated data like this one class SomeClass { public String foo;public String bar; } inside a class with a lot of complicated logic, for sure it is not a JavaBean, it can't be a VO as it is mutable, could it be a DTO? altought it is not targeted for remote invocations of any sort. May...
String comparison in Python: is vs. == [duplicate]
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Here's one with strings: x = 'foo'; y = 'bar'.replace('bar', 'foo'); (x is y) == False
– ariddell
Feb 2 '15 at 23:27
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Don't understand why UnboundLocalError occurs (closure) [duplicate]
...lError from a statement that uses an unbounded imported name. Example: def foo(): bar = deepcopy({'a':1}); from copy import deepcopy; return bar, then from copy import deepcopy; foo(). The call succeeds if the local import from copy import deepcopy is removed.
– Yibo Yang
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