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Returning unique_ptr from functions
...
@juanchopanza Do you essentially mean that foo() is indeed also about to be destroyed (if it were not assigned to anything), just like the return value within the function, and hence it makes sense that C++ uses a move constructor when doing unique_ptr<int> p = ...
How to create file execute mode permissions in Git on Windows?
...file and mark it executable in a single commit:
C:\Temp\TestRepo>touch foo.sh
C:\Temp\TestRepo>git add foo.sh
C:\Temp\TestRepo>git ls-files --stage
100644 e69de29bb2d1d6434b8b29ae775ad8c2e48c5391 0 foo.sh
As you note, after adding, the mode is 0644 (ie, not executable). However,...
What is attr_accessor in Ruby?
...d. What it does is create more methods for you.
So this code here:
class Foo
attr_accessor :bar
end
is equivalent to this code:
class Foo
def bar
@bar
end
def bar=( new_value )
@bar = new_value
end
end
You can write this sort of method yourself in Ruby:
class Module
def v...
Can a local variable's memory be accessed outside its scope?
.... The entire hotel could be just about to be torn down and replaced with a football stadium, and you are going to die in an explosion while you are sneaking around.
You don't know what is going to happen; when you checked out of the hotel and stole a key to illegally use later, you gave up the rig...
Initialization of an ArrayList in one line
...or later, after List.of() was added:
List<String> strings = List.of("foo", "bar", "baz");
With Java 10 or later, this can be shortened with the var keyword.
var strings = List.of("foo", "bar", "baz");
This will give you an immutable List, so it cannot be changed.
Which is what you want in mo...
How to rename with prefix/suffix?
... This is the best answer so far.
– lifeisfoo
Jan 5 '16 at 14:51
I don't think you need the first $ in this...
How do you specify that a class property is an integer?
...ntiate our properties even at runtime
// they are still just numbers
class Foo {
someId: ID;
someInt: Int;
}
let foo = new Foo();
// compiler won't let you do this due to or markers
foo.someId = 2;
foo.someInt = 1;
// when assigning, you have to cast to the specific type
// NOTE: This is ...
What does the exclamation mark do before the function?
...
JavaScript syntax 101. Here is a function declaration:
function foo() {}
Note that there's no semicolon: this is just a function declaration. You would need an invocation, foo(), to actually run the function.
Now, when we add the seemingly innocuous exclamation mark: !function foo() {}...
How to get method parameter names?
... and **kwargs variables, and the defaults provided. ie.
>>> def foo(a, b, c=4, *arglist, **keywords): pass
>>> inspect.getfullargspec(foo)
(['a', 'b', 'c'], 'arglist', 'keywords', (4,))
Note that some callables may not be introspectable in certain implementations of Python. For...
How do you assert that a certain exception is thrown in JUnit 4 tests?
...t can use JUnit 4.7, you can use the ExpectedException Rule:
public class FooTest {
@Rule
public final ExpectedException exception = ExpectedException.none();
@Test
public void doStuffThrowsIndexOutOfBoundsException() {
Foo foo = new Foo();
exception.expect(IndexOutOfBoundsExcepti...