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Why would introducing useless MOV instructions speed up a tight loop in x86_64 assembly?
...sing in the branch prediction table
moving the branch eliminated the alias and allowed the branch to be predicted correctly
Your Core2 doesn't keep a separate history record for each conditional jump. Instead it keeps a shared history of all conditional jumps. One disadvantage of global branch pr...
get NSDate today, yesterday, this Week, last Week, this Month, last Month… variables
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Adapted from the Date and Time Programming Guide:
// Right now, you can remove the seconds into the day if you want
NSDate *today = [NSDate date];
// All intervals taken from Google
NSDate *yesterday = [today dateByAddingTimeInterval: -86400.0];...
Batch renaming files with Bash
... to remove their version numbers? I've been toying around with both expr and %% , to no avail.
10 Answers
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Pandas aggregate count distinct
Let's say I have a log of user activity and I want to generate a report of total duration and the number of unique users per day.
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View all TODO items in Visual Studio using GhostDoc
...also using GhostDoc in Visual Studio 2008. How do I view all to-do items and if that's a function already in Visual Studio or in GhostDoc (the documentation tool that I use)?
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JQuery - find a radio button by value
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I'm using jQuery 1.6 and this did not work for me: $(":radio[value=foobar]").attr('checked',true);
Instead, I'm using: $('[value="foobar"]').attr('checked',true);
and it works great.
The actual code I'm using clears the radios first and uses pr...
Android ClickableSpan not calling onClick
I am creating a ClickableSpan, and it is displaying properly with
the proper text underlined. However, the clicks are not registering.
Do you know what I am doing wrong???
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How to send and retrieve parameters using $state.go toParams and $stateParams?
...ou must not use url when setting up your state. I found the answer on a PR and did some monkeying around to better understand.
$stateProvider.state('toState', {
templateUrl:'wokka.html',
controller:'stateController',
params: {
'referer': 'some default',
'param2': 'some default',
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C# equivalent to Java's charAt()?
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You can index into a string in C# like an array, and you get the character at that index.
Example:
In Java, you would say
str.charAt(8);
In C#, you would say
str[8];
share
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Where do gems install?
I'm trying to edit one of the gem's config files and I can't find it. I'm not sure how I did this in the past.
4 Answers
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