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How do you implement a class in C? [closed]
...series.
The basic paradigm is something like this:
/* for data structure foo */
FOO *myfoo;
myfoo = foo_create(...);
foo_something(myfoo, ...);
myfoo = foo_append(myfoo, ...);
foo_delete(myfoo);
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valueOf() vs. toString() in Javascript
...before I get to the answer:
var x = {
toString: function () { return "foo"; },
valueOf: function () { return 42; }
};
alert(x); // foo
"x=" + x; // "x=42"
x + "=x"; // "42=x"
x + "1"; // 421
x + 1; // 43
["x=", x].join(""); // "x=foo"
The toString function is not "trumped" by valueOf in ...
'const int' vs. 'int const' as function parameters in C++ and C
...
C does have const, given: static const char foo[] = "foo"; you better not alter foo.
– James Antill
Oct 2 '08 at 14:21
4
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XPath: How to check if an attribute exists?
...wing XML, how do I write an XPath query to pull nodes where the attribute foo exists?:
3 Answers
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Is C++ context-free or context-sensitive?
... Ambiguity is not relevant.
But in any event, like line 21 (i.e. auto b = foo<IsPrime<234799>>::typen<1>();) in the program below, the expressions are not ambiguous at all; they are simply parsed differently depending on context. In the simplest expression of the issue, the syntac...
Get the name of the currently executing method
...
Even better than my first answer you can use __method__:
class Foo
def test_method
__method__
end
end
This returns a symbol – for example, :test_method. To return the method name as a string, call __method__.to_s instead.
Note: This requires Ruby 1.8.7.
...
How to use concerns in Rails 4
...ort::Concern.
Example 2: Handle module dependencies gracefully.
module Foo
def self.included(base)
base.class_eval do
def self.method_injected_by_foo_to_host_klass
...
end
end
end
end
module Bar
def self.included(base)
base.method_injected_by_foo_to_host_kl...
Pragma in define macro
...NGIFY( weak delete_ ## type ## _ = delete_ ## type) )
DEFINE_DELETE_OBJECT(foo);
when put into gcc -E gives
void delete_foo_(int handle); void delete_foo(int handle);
#pragma weak delete_foo_ = delete_foo
;
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console.log timestamps in Chrome?
...
There's also console.timeStamp('foo') it just appears as a yellow point in the timeline. It didn't work for me when using names with spaces tho.
– Vitim.us
Nov 29 '16 at 22:03
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Quick way to create a list of values in C#?
...e looking to reduce clutter, consider
var lst = new List<string> { "foo", "bar" };
This uses two features of C# 3.0: type inference (the var keyword) and the collection initializer for lists.
Alternatively, if you can make do with an array, this is even shorter (by a small amount):
var ar...