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HEAD and ORIG_HEAD in Git
... possibly dangerous behavior, to be easy to revert them. It is less useful now that Git has reflog: HEAD@{1} is roughly equivalent to ORIG_HEAD (HEAD@{1} is always last value of HEAD, ORIG_HEAD is last value of HEAD before dangerous operation).
For more information read git(1) manpage, Git User's M...
How to compare two dates?
...> from datetime import datetime, timedelta
>>> past = datetime.now() - timedelta(days=1)
>>> present = datetime.now()
>>> past < present
True
>>> datetime(3000, 1, 1) < present
False
>>> present - datetime(2000, 4, 4)
datetime.timedelta(4242, 757...
How to use android emulator for testing bluetooth application?
... adapter to 'Bridged'. ·
Start the VM and select 'Live CD VESA' at boot.
Now you need to find out the IP of this VM. Go to terminal in VM (use Alt+F1
& Alt+F7 to toggle) and use the netcfg command to find this.
Now you need open a command prompt and go to your android install
folder (on host)...
How can I get the console logs from the iOS Simulator?
...Then run the simulator.
EDIT:
This stopped working on Mavericks/Xcode 5. Now you can access the simulator logs in its own folder: ~/Library/Logs/iOS Simulator/<sim-version>/system.log
You can either use the Console.app to see this, or just do a tail (iOS 7.0.3 64 bits for example):
tail -f...
Differences and relationship between glActiveTexture and glBindTexture
...ctiveObject(int currObject)
{
g_currObject = currObject;
}
Notice that now, we not only have a 2D list of Objects, but we also have the concept of a current object. We have a function to set the current object, we have the concept of a maximum number of current objects, and all of our object man...
Best way to add Activity to an Android project in Eclipse?
...n Ubuntu 10.04. When the add dialog comes up, it has two selections... No, now only one "Create a new element at the top level, in Application." Ne;low that there is a text entry field and below that, a box with selections for Activity, Activity Alias, Meta Data and so on. Below that there are butto...
Replacing a 32-bit loop counter with 64-bit introduces crazy performance deviations with _mm_popcnt_
...will wait until dest is ready before executing. This false dependency is (now) documented by Intel as erratum HSD146 (Haswell) and SKL029 (Skylake)
Skylake fixed this for lzcnt and tzcnt.
Cannon Lake (and Ice Lake) fixed this for popcnt.
bsf/bsr have a true output dependency: output unmodified for...
AddBusinessDays and GetBusinessDays
...
using Fluent DateTime:
var now = DateTime.Now;
var dateTime1 = now.AddBusinessDays(3);
var dateTime2 = now.SubtractBusinessDays(5);
internal code is as follows
/// <summary>
/// Adds the given number of business days to the <see cre...
Calculate relative time in C#
... 24 * HOUR;
const int MONTH = 30 * DAY;
var ts = new TimeSpan(DateTime.UtcNow.Ticks - yourDate.Ticks);
double delta = Math.Abs(ts.TotalSeconds);
if (delta < 1 * MINUTE)
return ts.Seconds == 1 ? "one second ago" : ts.Seconds + " seconds ago";
if (delta < 2 * MINUTE)
return "a minute ago"...
How to enable C++11/C++0x support in Eclipse CDT?
...ou to do, then hit OK.
There is a description of this in the Eclipse FAQ now as well: Eclipse FAQ/C++11 Features.
Eclipse image setting
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