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What is the difference between ExecuteScalar, ExecuteReader and ExecuteNonQuery?
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answered Jun 4 '10 at 12:43
Mark WilkinsMark Wilkins
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How can I reliably get an object's address when operator& is overloaded?
...a bit of black magic, but it does simplify the work (rather than providing 4 overloads). Note that since T is unqualified, if we pass a ghost const&, then T* is ghost const*, thus the qualifiers have not really been lost.
EDIT: the pointer overload is used for pointer to functions, I amended th...
How do you sort an array on multiple columns?
...1
dcpdcp
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How to check if a user likes my Facebook Page or URL using Facebook's API
...payload) = explode('.', $_REQUEST['signed_request'], 2);
$sig = base64_decode(strtr($encoded_sig, '-_', '+/'));
$data = json_decode(base64_decode(strtr($payload, '-_', '+/'), true));
return $data;
}
return false;
}
if($signed_request = parsePageSignedRequest()) {
if...
How to use double or single brackets, parentheses, curly braces
...me for ((i=0; i<10000000; i++)); do [[ "$i" = 1000 ]]; done
real 0m24.548s
user 0m24.337s
sys 0m0.036s
$ time for ((i=0; i<10000000; i++)); do [ "$i" = 1000 ]; done
real 0m33.478s
user 0m33.478s
sys 0m0.000s
The braces, in addition to delimiting a variable name are used for par...
Simple state machine example in C#?
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425
Let's start with this simple state diagram:
We have:
4 states (Inactive, Active, Paused, ...
Grab a segment of an array in Java without creating a new array on heap
...ment of an array. An example would be to get the byte array containing the 4th and 5th bytes of a byte array. I don't want to have to create a new byte array in the heap memory just to do that. Right now I have the following code:
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postgres default timezone
...l Bourque
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answered Jul 12 '11 at 12:01
Muhammad UsamaMuhammad Usama
2...
How to lose margin/padding in UITextView?
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401
Up-to-date for 2019
It is one of the silliest bugs in iOS.
The class given here, UITextViewFix...
How can one change the timestamp of an old commit in Git?
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If you wanted to change the dates of commit 119f9ecf58069b265ab22f1f97d2b648faf932e0, you could do so with something like this:
git filter-branch --env-filter \
'if [ $GIT_COMMIT = 119f9ecf58069b265ab22f1f97d2b648faf932e0 ]
then
export GIT_AUTHOR_DATE="Fri Jan 2 21:38:53 2009 -08...