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How can I tell gcc not to inline a function?
... asm ("");
Use it like this:
void __attribute__ ((noinline)) foo()
{
...
}
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Ruby arrays: %w vs %W
...pe sequences), while %W quotes like double quotes "".
irb(main):001:0> foo="hello"
=> "hello"
irb(main):002:0> %W(foo bar baz #{foo})
=> ["foo", "bar", "baz", "hello"]
irb(main):003:0> %w(foo bar baz #{foo})
=> ["foo", "bar", "baz", "\#{foo}"]
...
How can I add to List
..., but you can't.
The wildcard declaration of List<? extends Number> foo3 means that the variable foo3 can hold any value from a family of types (rather than any value of a specific type). It means that any of these are legal assignments:
List<? extends Number> foo3 = new ArrayList<N...
Difference between variable declaration syntaxes in Javascript (including global variables)?
...the var statement.
This can be confusing, so let's take a look:
display("foo in window? " + ('foo' in window)); // displays "true"
display("window.foo = " + window.foo); // displays "undefined"
display("bar in window? " + ('bar' in window)); // displays "false"
display("window.bar = " + w...
Run function from the command line
...
With the -c (command) argument (assuming your file is named foo.py):
$ python -c 'import foo; print foo.hello()'
Alternatively, if you don't care about namespace pollution:
$ python -c 'from foo import *; print hello()'
And the middle ground:
$ python -c 'from foo import hello;...
SQL injection that gets around mysql_real_escape_string()
...@shadyyx: As for passing such funkiness in $_GET... ?var=%BF%27+OR+1=1+%2F%2A in the URL, $var = $_GET['var']; in the code, and Bob's your uncle.
– cHao
Dec 27 '12 at 6:15
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How to use Swift @autoclosure
...look at example
func testClosures() {
//closures
XCTAssertEqual("fooWithClosure0 foo0", fooWithClosure0(p: foo0))
XCTAssertEqual("fooWithClosure1 foo1 1", fooWithClosure1(p: foo1))
XCTAssertEqual("fooWithClosure2 foo2 3", fooWithClosure2(p: foo2))
XCTAssertEqual("fooWithClosur...
Create a custom callback in JavaScript
... // Call the callback
callback('stuff', 'goes', 'here');
}
function foo(a, b, c) {
// I'm the callback
alert(a + " " + b + " " + c);
}
doSomething(foo);
That will call doSomething, which will call foo, which will alert "stuff goes here".
Note that it's very important to pass the f...
How do I find files that do not contain a given string pattern?
... out the files in the current directory which do not contain the word foo (using grep )?
16 Answers
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Why can I change value of a constant in javascript
...ist" that the constant points to.
So this works fine:
const x = {};
x.foo = 'bar';
console.log(x); // {foo : 'bar'}
x.foo = 'bar2';
console.log(x); // {foo : 'bar2'}
and this:
const y = [];
y.push('foo');
console.log(y); // ['foo']
y.unshift("foo2");
console.log(y); // ['foo2', 'f...