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What happens to a declared, uninitialized variable in C? Does it have a value?
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Static variables (file scope and function static) are initialized to zero:
int x; // zero
int y = 0; // also zero
void foo() {
static int x; // also zero
}
Non-static variables (local variables) are indeterminate. Reading them prior to assigning a ...
Setting HTTP headers
I'm trying to set a header in my Go web server. I'm using gorilla/mux and net/http packages.
8 Answers
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Git add all files modified, deleted, and untracked?
... tree, you need to use:
git add -A .
Also see: Difference of git add -A and git add .
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Spring JPA @Query with LIKE
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You can just do like :username and then .setParameter("username", "%foo%");
– Matthew Daumen
May 16 '19 at 19:30
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Why do people put code like “throw 1; ” and “for(;;);” in front of json responses? [du
...ased on altering the behaviour of the built-in types, in particular Object and Array, by altering their constructor function or its prototype. Then when the targeted JSON uses a {...} or [...] construct, they'll be the attacker's own versions of those objects, with potentially-unexpected behaviour.
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time.sleep — sleeps thread or process?
...tantive part of the sleep operation is wrapped in a Py_BEGIN_ALLOW_THREADS and Py_END_ALLOW_THREADS block, allowing other threads to continue to execute while the current one sleeps. You can also test this with a simple python program:
import time
from threading import Thread
class worker(Thread)...
Using “this” with class name
I am doing Android programming and was learning about Intents, when I saw a constructor that, to my C# trained mind, seemed funky. The call was:
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What is the correct way to document a **kwargs parameter?
I'm using sphinx and the autodoc plugin to generate API documentation for my Python modules. Whilst I can see how to nicely document specific parameters, I cannot find an example of how to document a **kwargs parameter.
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How to wait in a batch script? [duplicate]
I am trying to write a batch script and trying to wait 10 seconds between 2 function calls. The command:
6 Answers
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Python AttributeError: 'module' object has no attribute 'Serial' [duplicate]
... edited Oct 28 '18 at 15:01
Andrea Corbellini
14.6k11 gold badge3939 silver badges5656 bronze badges
answered Jul 9 '12 at 22:21
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