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Is there a max array length limit in C++?
...e reached) is set by the restrictions of the size type used to describe an index in the array (and the size thereof). It is given by the maximum value the system's std::size_t can take. This data type is large enough to contain the size in bytes of any object
The other limit is a physical memory li...
node.js remove file
...ar fs = require('fs');
var gutil = require('gulp-util');
fs.exists('./www/index.html', function(exists) {
if(exists) {
//Show in green
console.log(gutil.colors.green('File exists. Deleting now ...'));
fs.unlink('./www/index.html');
} else {
//Show in red
console.log(gutil.co...
moving changed files to another branch for check-in
...
A soft git reset will put committed changes back into your index. Next, checkout the branch you had intended to commit on. Then git commit with a new commit message.
git reset --soft <commit>
git checkout <branch>
git commit -m "Commit message goes here"
From git docs...
What does mysql error 1025 (HY000): Error on rename of './foo' (errorno: 150) mean?
...using the column name, but instead you would have to find the name used to index it. To find that, issue the following select:
SHOW CREATE TABLE region;
This should show you the name of the index, something like this:
CONSTRAINT region_ibfk_1 FOREIGN
KEY (country_id) REFERENCES
country...
Rename a dictionary key
... a O(N) in complexity:
def rename(self,key,new_key):
ind = self._keys.index(key) #get the index of old key, O(N) operation
self._keys[ind] = new_key #replace old key with new key in self._keys
self[new_key] = self[key] #add the new key, this is added at the end of self._keys
...
When should I use mmap for file access?
... I can give numbers coming from our project, a kind of text index for a phrase database. The index is several Gigabyte big and the keys are held in a ternary tree. The index is still growing in parallel to read access, access outside the mapped parts are made via pread. On Solaris 9 S...
Remove items from one list in another
...
You don't need an index, as the List<T> class allows you to remove items by value rather than index by using the Remove function.
foreach(car item in list1) list2.Remove(item);
...
Fixed page header overlaps in-page anchors
...es links inside the padding area non-clickable. To fix this you must use z-index, and set the links value higher than the anchor's. Remember you topbar should have the highest z-index value, so the page's content don't float ontop of the topbar when you scroll.
– MutttenXd
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In java how to get substring from a string till a character c?
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look at String.indexOf and String.substring.
Make sure you check for -1 for indexOf.
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How to encrypt/decrypt data in php?
.../decrypt of data in PHP. I made some online research and some of them were quite confusing(at least for me).
6 Answers
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