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How to run a program without an operating system?

...M calls theirs semihosting for example. On real hardware, it requires some extra hardware and software support, but on emulators it can be a free convenient option. Example. Here we will do a BIOS example as it is simpler on x86. But note that it is not the most robust method. main.S .code16 m...
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How do I get bash completion to work with aliases?

... The command used in the alias # $3: The arguments in the alias all in one string # Generate a wrapper completion function (completer) for an alias # based on the command and the given arguments, if there is a # completer for the command, and set the wrapper as the completer for # the alias. functio...
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“Deprecation warning: moment construction falls back to js Date” when trying to convert RFC2822 date

...rning, you need to either: Pass in an ISO formatted version of your date string: moment('2014-04-23T09:54:51'); Pass in the string you have now, but tell Moment what format the string is in: moment('Wed, 23 Apr 2014 09:54:51 +0000', 'ddd, DD MMM YYYY HH:mm:ss ZZ'); Convert your string to a JavaS...
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On delete cascade with doctrine2

...GeneratedValue */ protected $id; /** * @Column(type="string", length="75", unique="true") */ protected $name; /** * @OneToMany(targetEntity="Phonenumber", mappedBy="contact") */ protected $phonenumbers; public function __construct($name=nu...
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sqlite alter table add MULTIPLE columns in a single statement

...und for adding multiple columns using the benefit of transactions in SQL. String alterTableQuery = "ALTER TABLE " + TABLE_NAME + " ADD COLUMN "; List<String> newColumns = ..// Your new columns db.beginTransaction(); for (String column : newColumns){ db.execSQL(alterTableQuery + column + ...
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Using numpy to build an array of all combinations of two arrays

... There is bug in this implementation. For arrays of strings for example: arrays[0].dtype = "|S3" and arrays[1].dtype = "|S5". So there is a need in finding the longest string in input and use its type in out = np.zeros([n, len(arrays)], dtype=dtype) – nor...
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How can I get the current date and time in UTC or GMT in Java?

...stance of Calendar which uses the local timezone, or possibly using Date.toString() which also uses the local timezone, or a SimpleDateFormat instance, which, by default, also uses local timezone. If this isn't the problem, please post some sample code. I would, however, recommend that you use Jod...
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Entity Framework is Too Slow. What are my options? [closed]

...timise (using projections) those few queries where you really need use the extra benefit. EF and POCO gives you reasonable default, which is very nice! – Victor Jan 16 '14 at 21:49 ...
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Visual Studio 2010 IntelliSense doesn't select a default value - it just marks it

...rue. But you still have to press period to bring up the member's list. One extra step :( – Tomas Beblar Jan 5 '16 at 18:36 2 ...
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Is the pImpl idiom really used in practice?

...ss, I would consider caution because all those benefits come at a cost: an extra level of indirection is required in order to access the implementation methods. share | improve this answer ...