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How fast is D compared to C++?
... at the assembler listing, it looks like neither dmd nor gdc inlined scalar_product, but g++/gdc did emit MMX instructions, so they might be auto-vectorizing the loop.
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Vim: Creating parent directories on save
...move my previous options and give feedback.
– moebius_eye
Sep 3 '16 at 14:28
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When should I use malloc in C and when don't I?
...
char *some_memory = "Hello World";
is creating a pointer to a string constant. That means the string "Hello World" will be somewhere in the read-only part of the memory and you just have a pointer to it. You can use the string as rea...
How to import existing Git repository into another?
...mmit to move the merged repository to the subdirectory.
git remote add XXX_remote <path-or-url-to-XXX-repo>
git fetch XXX_remote
git merge -s ours --no-commit --allow-unrelated-histories XXX_remote/master
git read-tree --prefix=ZZZ/ -u XXX_remote/master
git commit -m "Imported XXX as a subtre...
How to delete images from a private docker registry?
...st your catalogs by calling this url:
http://YourPrivateRegistyIP:5000/v2/_catalog
Response will be in the following format:
{
"repositories": [
<name>,
...
]
}
Step 2: Listing tags for related catalog
You can list tags of your catalog by calling this url:
http://YourPrivat...
How do RVM and rbenv actually work?
...runs the corresponding command for that version. Here's how:
If the RBENV_VERSION environment variable is set, its value determines the version of Ruby to use.
If the current working directory has an .rbenv-version file, its contents are used to set the RBENV_VERSION environment variable.
If there...
What is the most efficient Java Collections library? [closed]
... long mem = usedMem();
TIntIntHashMap ours = new TIntIntHashMap(SET_SIZE);
for ( int i = dataset.size(); i-- > 0; ) {
ours.put(i, i);
}
mem = usedMem() - mem;
System.err.println("trove " + mem + " bytes");
ours.clear();
}
publi...
How to set tbody height with overflow scroll
... IE doesn't support position: sticky
– ariel_556
Jul 30 at 2:54
1
FWIW you can also add ...
When should I choose Vector in Scala?
...e, Vector can provide most common operations reasonably fast, i.e. in O(log_32(n)). That works for prepend, append, update, random access, decomposition in head/tail. Iteration in sequential order is linear.
List on the other hand just provides linear iteration and constant time prepend, decompositi...
How to trace the path in a Breadth-First Search?
...
You should have look at http://en.wikipedia.org/wiki/Breadth-first_search first.
Below is a quick implementation, in which I used a list of list to represent the queue of paths.
# graph is in adjacent list representation
graph = {
'1': ['2', '3', '4'],
'2': ['5', '6'],
...