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What are the differences between concepts and template constraints?
...yntax. They give us a way of statically discerning properties of a type at compile-time, so that we can restrict the types used as template arguments based on their syntactic properties. In the current proposal for constraints, they are expressed with a subset of propositional calculus using logical...
How many GCC optimization levels are there?
...more)
-Ofast (optimize very aggressively to the point of breaking standard compliance)
-Og (Optimize debugging experience. -Og enables optimizations that do not interfere with debugging. It should be the
optimization level of choice for the standard edit-compile-debug cycle, offering a re...
What's the difference between “mod” and “remainder”?
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What's the valid way to include an image with no src?
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Git asks for username every time I push
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Edit (by @dk14 as suggested by moderators and comments)
WARNING: If you use credential.helper store from the answer, your password is going to be stored completely unencrypted ("as is") at ~/.git-credentials. Please consult the comments section below or the answers from...
Final arguments in interface methods - what's the point?
...r, only within the body of an implementation. Also, as noted by Robin in a comment, the final modifier on a method parameter has no effect on the generated byte code. (This is not true for other uses of final.)
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How do I convert datetime to ISO 8601 in PHP
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Object Oriented
This is the recommended way.
$datetime = new DateTime('2010-12-30 23:21:46');
echo $datetime->format(DateTime::ATOM); // Updated ISO8601
Procedural
For older versions of PHP, or if you are more comfortable with procedural code.
echo ...
How to disable Google Chrome auto update?
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You need to use fillowing method for Chrome v42. wikihow.com/Completely-Disable-Google-Chrome-Update
– Amar
Apr 27 '15 at 5:35
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How do I run a simple bit of code in a new thread?
...ework 4.0+ just use Task.Run(), as described in this answer: stackoverflow.com/a/31778592/1633949
– Richard II
Oct 25 '19 at 13:58
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What are best practices for validating email addresses on iOS 2.0
...ess explains in great detail that the grammar specified in RFC 5322 is too complicated for primitive regular expressions.
I recommend a real parser approach like MKEmailAddress.
As quick regular expressions solution see this modification of DHValidation:
- (BOOL) validateEmail: (NSString *) can...