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Logical operators for boolean indexing in Pandas
... that documentation is more of a "tutorial", and in contrast, I feel these API references are closer to the source of truth: numpy.bitwise_or and numpy.logical_or - so I'm trying to make sense of what is described here.
– flow2k
Jun 14 '19 at 0:11
...
Encrypt and decrypt a string in C#?
...rloads, and only the Gist has the full formatting with 4 spaces indent and api docs due to StackOverflow answer limits.
.NET Built-in Encrypt(AES)-Then-MAC(HMAC) [Gist]
/*
* This work (Modern Encryption of a String C#, by James Tuley),
* identified by James Tuley, is free of known copyright r...
Using Auto Layout in UITableView for dynamic cell layouts & variable row heights
...nterface Builder using layout anchors, or one of the fantastic open source APIs available on GitHub.
If you're adding constraints in code, you should do this once from within the updateConstraints method of your UITableViewCell subclass. Note that updateConstraints may be called more than once, so...
Fastest way to iterate over all the chars in a String
...e parallel version) are a bust. Way slower than any other way. The Streams API is a rather slow way to perform general string operations.
Wish List
Java String could have predicate accepting optimized methods such as contains(predicate), forEach(consumer), forEachWithIndex(consumer). Thus, without t...
Move assignment operator and `if (this != &rhs)`
...is to build the fastest operations in at the lowest level, and then to add API on top of that for fuller features at more expense. I.e. you need the strong exception guarantee, fine, you pay for it. You don't need it? Here's a faster solution.
Let's get concrete: Here's the fast, basic exceptio...
C++ performance vs. Java/C#
...ode (e.g. a generic parser from string to type T, calling standard library API for types T it recognizes, and making the parser easily extensible by its user) is very easy and very efficient, whereas the equivalent in Java or C# is painful at best to write, and will always be slower and resolved at ...
Finding current executable's path without /proc/self/exe
...ry by Gregory Pakosz implements this for a variety of platforms, using the APIs mentioned in mark4o's post. This is most interesting if you "just" need a solution that works for a portable project and are not interested in the peculiarities of the various platforms.
At the time of writing, supported...
Refresh image with a new one at the same url
...rver, bypassing/refreshing the cache.
// due to limitations of the browser API, this actually requires TWO load attempts - an initial load into a hidden iframe, and then a call to iframe.contentWindow.location.reload(true);
// If image is from a different domain (i.e. cross-domain restrictions are i...
Unicode equivalents for \w and \b in Java regular expressions?
...d together the code duplication
provide a clearer interface regarding unescaping string escapes versus augmenting regex escapes
provide some flexibility in the \d expansion, and maybe the \b
provide convenience methods that handle turning around and calling Pattern.compile or String.matches or whatn...
When to use volatile with multi threading?
...her via explicit flushes, you'd typically use MPI or other message-passing API to make the program specify which address ranges need flushing.
Real hardware doesn't run std::thread across cache coherency boundaries:
Some asymmetric ARM chips exist, with shared physical address space but not inn...