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What's the difference between HEAD^ and HEAD~ in Git?
...f thumb
Use ~ most of the time — to go back a number of generations, usually what you want
Use ^ on merge commits — because they have two or more (immediate) parents
Mnemonics:
Tilde ~ is almost linear in appearance and wants to go backward in a straight line
Caret ^ suggests an interesting s...
Adding a cross-reference to a subheading or anchor in another page
... because it works across files, when section headings are changed, and for all builders that support cross-references.
RST, in General
The tools that convert RST files to HTML do not necessarily have a notion of collection. This is the case for instance if you rely on github to convert RST files ...
bool operator ++ and --
... and 2 or more [true]).
So as a short-hand ++ worked, and -- didn't.
++ is allowed on bools for compatibility with this, but its use is deprecated in the standard and it was removed in C++17.
This assumes that I only use x as an boolean, meaning that overflow can't happen until I've done ++ often e...
how to provide a swap function for my class?
...found through ADL
// some code ...
swap(lhs, rhs); // unqualified call, uses ADL and finds a fitting 'swap'
// or falls back on 'std::swap'
// more code ...
}
Is the proper way to provide a swap function for your class.
namespace Foo {
class Bar{}; // dummy
void ...
Why does Java switch on contiguous ints appear to run faster with added cases?
...value has been removed in JDK 8 after more benchmarking was performed.
Finally, when the method becomes too long (> 25 cases in my tests), it is in not inlined any longer with the default JVM settings - that is the likeliest cause for the drop in performance at that point.
With 5 cases, the d...
How can I make git accept a self signed certificate?
...
You should never globally disable TLS(/SSL) certificate verification.
– Flow
Aug 13 '15 at 12:01
4
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Who architected / designed C++'s IOStreams, and would it still be considered well-designed by today'
... sign of quality design.
IOStreams have a checkered history. They are actually a reworking of an earlier streams library, but were authored at a time when many of today's C++ idioms didn't exist, so the designers didn't have the benefit of hindsight. One issue that only became apparent over time wa...
What are the security risks of setting Access-Control-Allow-Origin?
I recently had to set Access-Control-Allow-Origin to * in order to be able to make cross-subdomain ajax calls.
Now I can't help but feel that I'm putting my environment to security risks.
Please help me if I'm doing it wrong.
...
Visual Studio 2013 and BitBucket
... out TFS as a remote git server, but want to also commit to github periodically to be safe.
– Neil
Nov 6 '13 at 2:37
A...
Why are functions in Ocaml/F# not recursive by default?
...es (f1, f2 etc.) which pollutes the scope and makes it possible to accidentally invoke the wrong "version" of a function. And there is now a discrepancy between implicitly-recursive fun-bound functions and non-recursive val-bound functions.
Haskell makes it possible to infer the dependencies betwee...