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Fastest way to determine if an integer is between two integers (inclusive) with known sets of values
... this specific line of code. By precomputing upper-lower my profiling went from 25% time of this function to less than 2%! Bottleneck is now addition and subtraction operations, but I think it might be good enough now :)
– jjxtra
Jun 13 '13 at 19:54
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What is the strict aliasing rule?
...sg;
void SendWord(uint32_t);
int main(void)
{
// Get a 32-bit buffer from the system
uint32_t* buff = malloc(sizeof(Msg));
// Alias that buffer through message
Msg* msg = (Msg*)(buff);
// Send a bunch of messages
for (int i = 0; i < 10; ++i)
{
m...
What is the “assert” function?
...on:
assert(foo());
// Here's a safer way:
int ret = foo();
assert(ret);
From the combination of the program calling abort() and not being guaranteed to do anything, asserts should only be used to test things that the developer has assumed rather than, for example, the user entering a number rathe...
What does get-task-allow do in Xcode?
...
From this thread on ADC:
get-task-allow, when signed into an application, allows other processes (like the debugger) to attach to your app. Distribution profiles require that this value be turned off, while development profi...
Dynamic variable names in Bash
...able indirection is introduced. Bash uses the value of the variable formed from the rest of parameter as the name of the variable; this variable is then expanded and that value is used in the rest of the substitution, rather than the value of parameter itself.
– Yorik.sar
...
Why do 64-bit DLLs go to System32 and 32-bit DLLs to SysWoW64 on 64-bit Windows?
...ne. it over complicates things, and breaks everything. All to save people from adapting hard-coded "System32" to "System64" when converting to 64bit. Idiocy
– Armand
Sep 17 '14 at 0:18
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How do I force git pull to overwrite everything on every pull?
...
You could try this:
git reset --hard HEAD
git pull
(from How do I force "git pull" to overwrite local files?)
Another idea would be to delete the entire git and make a new clone.
share
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express.js - single routing handler for multiple routes in a single line
...oop(|la|lapoo|lul)/poo'],
function ( request, response ) {
}
);
From inside the request object, with a path of /hooplul/poo?bandle=froo&bandle=pee&bof=blarg:
"route": {
"keys": [
{
"optional": false,
"name": "farcus"
}
],
"cal...
How to sum array of numbers in Ruby?
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How can I use this way to sum a attribute from object. My array [product1, product2] I want to sum product1.price + product2.price. Is it possible using array.inject(:+)?
– Pablo Cantero
Apr 27 '11 at 20:45
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Best practices for copying files with Maven
I have config files and various documents that I want to copy from the dev environment to the dev-server directory using Maven2. Strangely, Maven does not seem strong at this task.
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