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Usages of Null / Nothing / Unit in Scala
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You only use Nothing if the method never returns (meaning it cannot complete normally by returning, it could throw an exception). Nothing is never instantiated and is there for the benefit of the type system (to quote James Iry: "The reason Scala has a bottom type is tied to its abi...
iOS 7 - Failing to instantiate default view controller
I am using Xcode 5 in a newly created app and when I just create it I go for the run button e click on it, then the project gets built but it does not show in the iOS Simulator and I get the following message:
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How to disable margin-collapsing?
...llapse only in the latter case. Also, any value of overflow different from its default (visible) applied to the parent will prevent collapse. Thus, both overflow: auto and overflow: hidden will have the same effect. Perhaps the only difference when using hidden is the unintended consequence of hidin...
Is there a standard naming convention for XML elements? [closed]
... or otherwise, for XML documents? For example which is the "best" way to write a tag?
13 Answers
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Running Internet Explorer 6, Internet Explorer 7, and Internet Explorer 8 on the same machine
... developer, which I'd like to use. I'd also like to start testing my code with Internet Explorer 8, as it will soon be released.
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How to complete a git clone for a big project on an unstable connection?
I am trying to git clone the LibreOffice codebase, but at the moment I have an internet connection of about 300kbps and it's just anything but stable. I can get the connection back any moment, but then the git clone process already stopped working, and no way to get it running again. Is there some w...
What is the advantage of GCC's __builtin_expect in if else statements?
...expect(x, 0)) {
foo();
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} else {
bar();
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}
I guess it should be something like:
cmp $x, 0
jne _foo
_bar:
call bar
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jmp after_if
_foo:
call foo
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after_if:
You can see that the instructions are arranged in such an order that the bar case precedes ...
RabbitMQ and relationship between channel and connection
The RabbitMQ Java client has the following concepts:
4 Answers
4
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How to remove unused C/C++ symbols with GCC and ld?
...he data but tell the compiler to separate the code into separate sections within the translation unit. This will be done for functions, classes, and external variables by using the following two compiler flags:
-fdata-sections -ffunction-sections
Link the translation units together using the link...
Autolayout - intrinsic size of UIButton does not include title insets
If I have a UIButton arranged using autolayout, its size adjusts nicely to fit its content.
12 Answers
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