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Is optimisation level -O3 dangerous in g++?
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In my somewhat checkered experience, applying -O3 to an entire program almost always makes it slower (relative to -O2), because it turns on aggressive loop unrolling and inlining that make the program no longer fit in the instru...
Using only CSS, show div on hover over
... a much larger div. I wanted the "stuff" div to remain visible if I moved my cursor from the "hover" div to the "stuff" div so I changed the last style element from #hover:hover + #stuff { to #hover:hover + #stuff, #stuff:hover {. Then the "stuff" div remains visible when you move over that div!
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Changing default shell in Linux [closed]
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In my case, I had root access but didn't want to mess with any configurations on the actual host. I added exec /bin/bash to ~/.profile and this allowed me to login directly to bash without making any changes to the server. (The ...
ASP.NET Web API - PUT & DELETE Verbs Not Allowed - IIS 8
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Saved my day: <modules runAllManagedModulesForAllRequests="true"> <remove name="WebDAVModule"/> </modules>
– Peter Stegnar
Feb 3 '15 at 8:10
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Is C++ context-free or context-sensitive?
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Below is my (current) favorite demonstration of why parsing C++ is (probably) Turing-complete, since it shows a program which is syntactically correct if and only if a given integer is prime.
So I assert that C++ is neither context-f...
SQL Case Sensitive String Compare
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In my case, I have 1 column in my db that is case-sensitive. I needed to compare it to a standard (CI) column. I used a variation of this WHERE Foo.Bar = (Baz.Bar COLLATE Latin1_General_CS_AS)
– Hypnovirus...
How to generate a random alpha-numeric string?
...mple Java algorithm to generate a pseudo-random alpha-numeric string. In my situation it would be used as a unique session/key identifier that would "likely" be unique over 500K+ generation (my needs don't really require anything much more sophisticated).
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What is JavaScript garbage collection?
...efers to. (I am
using the word "closure" in a
different sense than in my earlier
post.)
At this point we know that all the
memory still marked is allocated
memory which cannot be reached by any
path from any in-scope variable. All
of those objects are instructed to
tear themselve...
How do I search within an array of hashes by hash values in ruby?
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Oh! You were the first one! Deleting my answer and +1.
– Milan Novota
Feb 11 '10 at 14:13
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How to run JUnit tests with Gradle?
...h --> Default output folder: replace "bin" with "build". However... in my experience this seems to have the disconcerting habit of "slipping back" to the default "bin" every so often unexpectedly. Would be nice to know if there's a way of getting Eclipse to use "build" by default.
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