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How to show first commit by 'git log'?
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Short answer
git rev-list --max-parents=0 HEAD
(from tiho's comment. As Chris Johnsen notices, --max-parents was introduced after this answer was posted.)
Explanation
Technically, there may be more than one root commit. This happens when multiple previously independent h...
C/C++ macro string concatenation
...ine PPCAT_NX(A, B) A ## B
PPCAT_NX("s", "1")
produces this error message from the preprocessing phase of gcc: error: pasting ""s"" and ""1"" does not give a valid preprocessing token
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However, for general token pasting, try this:
/*
* Concatenate preprocessor tokens A and B without expanding...
android EditText - finished typing event
...editable field - I pretty much never press Enter/Done - and what I've seen from our customers, neither do they... I am talking about a list of Edittexts/Comboboxes etc. If you only give the user one Input field and force him to press a button before he can advance to other fields then that's obvious...
How to overload the operator++ in two different ways for postfix a++ and prefix ++a?
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@Eric: You have it correct all the way through apart from a sentence in the middle where you mix. Its prefix that is better.
– Martin York
Oct 2 '10 at 19:10
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Rails: confused about syntax for passing locals to partials
...ering" people on SO. That's why this site exists. I even learned something from this.
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What is PECS (Producer Extends Consumer Super)?
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tl;dr: "PECS" is from the collection's point of view. If you are only pulling items from a generic collection, it is a producer and you should use extends; if you are only stuffing items in, it is a consumer and you should use super. If you d...
Sort array of objects by object fields
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Use usort, here's an example adapted from the manual:
function cmp($a, $b) {
return strcmp($a->name, $b->name);
}
usort($your_data, "cmp");
You can also use any callable as the second argument. Here are some examples:
Using anonymous functions (from...
Is it possible to have multiple styles inside a TextView?
...: (Thanks to Mark again!)
mBox = new TextView(context);
mBox.setText(Html.fromHtml("<b>" + title + "</b>" + "<br />" +
"<small>" + description + "</small>" + "<br />" +
"<small>" + DateAdded + "</small>"));
For an unoffici...
Calculate total seconds in PHP DateInterval
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This function allows you to get the total duration in seconds from a DateInterval object
/**
* @param DateInterval $dateInterval
* @return int seconds
*/
function dateIntervalToSeconds($dateInterval)
{
$reference = new DateTimeImmutable;
$endTime = $reference->add($dateIn...
Parsing XML with namespace in Python via 'ElementTree'
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Thank you. Any idea how can I get the namespace directly from XML, without hard-coding it? Or how can I ignore it? I've tried findall('{*}Class') but it wont work in my case.
– Kostanos
Nov 27 '13 at 1:26
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