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Quickly create a large file on a Linux system
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dd from the other answers is a good solution, but it is slow for this purpose. In Linux (and other POSIX systems), we have fallocate, which uses the desired space without having to actually writing to it, works with most modern ...
Does Go have “if x in” construct similar to Python?
...lution if the list contains static values.
eg: checking for a valid value from a list of valid values:
func IsValidCategory(category string) bool {
switch category {
case
"auto",
"news",
"sport",
"music":
return true
}
return false
}
...
What is a Shim?
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From Wikipedia:
In computer programming, a shim is a small library that transparently intercepts an API, changing the parameters passed, handling the operation itself, or redirecting the operation elsewhere. Shims typical...
Arrays, heap and stack and value types
In the above code, is new int[100] generating the array on the heap? From what I've read on CLR via c#, the answer is yes. But what I can't understand, is what happens to the actual int's inside the array. As they are value types, I'd guess they'd have to be boxed, as I can, for example, pass myInte...
How do I measure separate CPU core usage for a process?
... Doesn't answer original question. However, for not mentioning it (-1) from me.
– KGhatak
Dec 15 '16 at 7:12
1
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What characters are valid for JavaScript variable names?
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From the ECMAScript specification in section 7.6 Identifier Names and Identifiers, a valid identifier is defined as:
Identifier ::
IdentifierName but not ReservedWord
IdentifierName ::
IdentifierStart
Identif...
The modulo operation on negative numbers in Python
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Here's an explanation from Guido van Rossum:
http://python-history.blogspot.com/2010/08/why-pythons-integer-division-floors.html
Essentially, it's so that a/b = q with remainder r preserves the relationships b*q + r = a and 0 <= r < b.
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Window Features - 更多技术 - 清泛网 - 专注C/C++及内核技术
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Clipping
The system does not automatically clip a child window from the parent window's client area. This means the parent window draws over the child window if it carries out any drawing in the same location as the child window. However, the system does clip the child window from the pa...
What is the correct file extension for GLSL shaders? [closed]
...s no official extension in the spec. OpenGL doesn't handle loading shaders from files; you just pass in the shader code as a string, so there's no specific file format.
However, glslang, Khronos' reference GLSL compiler/validator, uses the following extensions to determine what type of shader that ...
What does the `forall` keyword in Haskell/GHC do?
... a -> b.
A confusing point: you may hear that when you omit the forall from a type it is actually still implicitly there. (from Norman's answer: "normally these languages omit the forall from polymorphic types"). This claim is correct, but it refers to the other uses of forall, and not to the Sc...