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When to use virtual destructors?
...n delete b], if the static type of the
object to be deleted is different from its dynamic type, the static
type shall be a base class of the dynamic type of the object to be
deleted and the static type shall have a virtual destructor or the
behavior is undefined.
In most implementations, t...
How to pass arguments and redirect stdin from a file to program run in gdb?
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Pass the arguments to the run command from within gdb.
$ gdb ./a.out
(gdb) r < t
Starting program: /dir/a.out < t
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How is std::function implemented?
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The implementation of std::function can differ from one implementation to another, but the core idea is that it uses type-erasure. While there are multiple ways of doing it, you can imagine a trivial (not optimal) solution could be like this (simplified for the specific c...
Why is C so fast, and why aren't other languages as fast or faster? [closed]
...r than other languages? Or put another way: what's to stop other languages from being able to compile down to binary that runs every bit as fast as C?
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How to set ViewBag properties for all Views without using a base class for Controllers?
...nto ViewData/ViewBag in a global fashion by having all Controllers inherit from a common base controller.
8 Answers
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to drawRect or not to drawRect (when should one use drawRect/Core Graphics vs subviews/images and wh
...e image get "flushed" back to the GPU. This round-trip of getting an image from the GPU, changing it, then uploading the whole image (or at least a comparatively large chunk of it) back to the GPU is rather slow. Also, the actual drawing that Quartz does, while really fast for what you are doing, is...
POSTing JsonObject With HttpClient From Web API
I'm trying to POST a JsonObject using HttpClient from Web API. I'm not quite sure how to go about this and can't find much in the way of sample code.
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Extracting .jar file with command line
I am trying to extract the files from a .jar file. How do I do that using command line?
8 Answers
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Call Javascript function from URL/address bar
Is it possible to call a javascript function from the URL? I am basically trying to leverage JS methods in a page I don't have access to the source.
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How to pass JVM options from bootRun
...temProperties instead of jvmArgs
If you want to conditionally add jvmArgs from the command line you can do the following:
bootRun {
if ( project.hasProperty('jvmArgs') ) {
jvmArgs project.jvmArgs.split('\\s+')
}
}
gradle bootRun -PjvmArgs="-Dwhatever1=value1 -Dwhatever2=value2"
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