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Why does C# allow {} code blocks without a preceding statement?
Why does C# allow code blocks without a preceding statement (e.g. if , else , for , while )?
9 Answers
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Linking static libraries to other static libraries
...ry from the subset of the .o files that contain them. This is difficult, time consuming and error prone. I'm not aware of any tools to help do this (not to say they don't exist), but it would make quite an interesting project to produce one.
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How can I brew link a specific version?
I have a few kegs of the same package in /usr/local/Cellar/libfoo like /usr/local/Cellar/libfoo/1.0.1 , /usr/local/Cellar/libfoo/HEAD and /usr/local/Cellar/libfoo/mycopy
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Are there any downsides to passing structs by value in C, rather than passing a pointer?
...value: Stack space.
A lot of C programming is for embedded systems, where memory is at a premium, and stack sizes may be measured in KB or even Bytes... If you're passing or returning structs by value, copies of those structs will get placed on the stack, potentially causing the situation that this...
What's the difference between the Dependency Injection and Service Locator patterns?
Both patterns seem like an implementation of the principle of inversion of control. That is, that an object should not know how to construct its dependencies.
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Learning Ant path style
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Ant-style path patterns matching in spring-framework:
The mapping matches URLs using the following rules:
? matches one character
* matches zero or more characters
** matches zero or more 'directories' in a path
{spring:[a-z]+} matches the regexp [a-z]+ as a path varia...
Select rows which are not present in other table
...r:
What is easier to read in EXISTS subqueries?
LEFT JOIN / IS NULL
Sometimes this is fastest. Often shortest. Often results in the same query plan as NOT EXISTS.
SELECT l.ip
FROM login_log l
LEFT JOIN ip_location i USING (ip) -- short for: ON i.ip = l.ip
WHERE i.ip IS NULL;
EXCEPT
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What is the difference between a mutable and immutable string in C#?
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Mutable and immutable are English words meaning "can change" and "cannot change" respectively. The meaning of the words is the same in the IT context; i.e.
a mutable string can be changed, and
an immutable string cannot be changed.
The meanings of these words ...
Sass .scss: Nesting and multiple classes?
...eplacing the &.
This notation is most often used to write pseudo-elements and -classes:
.element{
&:hover{ ... }
&:nth-child(1){ ... }
}
However, you can place the & at virtually any position you like*, so the following is possible too:
.container {
background:red;...
Detecting taps on attributed text in a UITextView in iOS
...answered Oct 12 '13 at 12:47
tarmestarmes
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