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What are the rules for evaluation order in Java?
... why these rules are sensible in Java and C# here: https://ericlippert.com/2019/01/18/indexer-error-cases/)
Precedence and associativity only tell us that the assignment of zero to b must happen before the assignment to a[b], because the assignment of zero computes the value that is assigned in the...
What is an undefined reference/unresolved external symbol error and how do I fix it?
...latforms.
Common error messages are error LNK2001, error LNK1120, error LNK2019 for Microsoft Visual Studio and undefined reference to symbolName for GCC.
The code:
struct X
{
virtual void foo();
};
struct Y : X
{
void foo() {}
};
struct A
{
virtual ~A() = 0;
};
struct B: A
{
virtual ~B(...
The Definitive C++ Book Guide and List
... a grain of salt with it. The first volume of a new edition is released in 2019.
Inside the C++ Object Model (Stanley Lippman) If you want to know how virtual member functions are commonly implemented and how base objects are commonly laid out in memory in a multi-inheritance scenario, and how all...
How to securely save username/password (local)?
... readable string.
Here is a very simple quick example in C# Visual Studio 2019 WinForms based on the answer from @Pradip.
Right click project > properties > settings > Create a username and password setting.
Now you can leverage those settings you just created. Here I save the username...
What's the difference between __PRETTY_FUNCTION__, __FUNCTION__, __func__?
...location::function_name
http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2019/p1208r5.pdf went into C++20, so we have yet another way to do it.
The documentation says:
constexpr const char* function_name() const noexcept;
6 Returns: If this object represents a position in the body of a function,
...
Why aren't variable-length arrays part of the C++ standard?
... same points is "Legitimate Use of Variable Length Arrays" (Chris Wellons, 2019-10-27).
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FragmentPagerAdapter Exists Only In Android.Support.V4.App (and not Android.App)
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As per 2019 with AndroidX
implementation 'androidx.legacy:legacy-support-v13:1.0.0'
implementation 'androidx.viewpager:viewpager:1.0.0'
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Remove sensitive files and their commits from Git history
...1>..HEAD
git push --force --verbose --dry-run
git push --force
Update 2019:
This is the current code from the FAQ:
git filter-branch --force --index-filter \
"git rm --cached --ignore-unmatch PATH-TO-YOUR-FILE-WITH-SENSITIVE-DATA" \
--prune-empty --tag-name-filter cat -- --all
git pus...
Difference between git checkout --track origin/branch and git checkout -b branch origin/branch
...ld need git checkout -B abranch origin/abranch)
Note: with Git 2.23 (Q3 2019), that would use the new command git switch:
git switch -c <branch> --track <remote>/<branch>
If the branch exists in multiple remotes and one of them is named by the checkout.defaultRemote config...
How to parse an RSS feed using JavaScript?
...
For anyone else reading this (in 2019 onwards) unfortunately most JS RSS reading implementations don't now work. Firstly Google API has shut down so this is no longer an option and because of the CORS security policy you generally cannot now request RSS feed...