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Why does the C preprocessor interpret the word “linux” as the constant “1”?
Why does the C preprocessor in GCC interpret the word linux (small letters) as the constant 1 ?
5 Answers
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How to include PHP files that require an absolute path?
... just a question, why realpath() for $_SERVER["DOCUMENT_ROOT"]? This shall not output always the canonical path?
– João Pimentel Ferreira
Nov 15 '15 at 0:30
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Rails: How do I create a default value for attributes in Rails activerecord's model? [duplicate]
... in the database. You can do this in your migrations. For example:
create_table :projects do |t|
t.string :status, :null => false, :default => 'P'
...
t.timestamps
end
Hope that helps.
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Change the mouse cursor on mouse over to anchor-like style
...s) this answer applies broadly. It is useful for any HTML element such as tables, <p>'s, buttons, etc. That's why I +1'd it.
– PeteH
Nov 19 '13 at 6:32
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How to test Spring Data repositories?
...est the CrudRepo, the Entity and the DDL scripts which create the Entity's table(s).
– MirandaVeracruzDeLaHoyaCardina
Sep 25 '18 at 9:48
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How can I get the actual stored procedure line number from an error message?
...is
CAST(ERROR_LINE() AS VARCHAR(50))
and if you want to make error log table you can use this :
INSERT INTO dbo.tbname( Source, Message) VALUES ( ERROR_PROCEDURE(), '[ ERROR_SEVERITY : ' + CAST(ERROR_SEVERITY() AS VARCHAR(50)) + ' ] ' + '[ ERROR_STATE : ' + CAST(ERROR_STATE() AS VARCHAR(50)) + ...
How to make an immutable object in Python?
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Can you use namedtuple internally inside the class instead of instantiating the object externally? I'm very new to python but the advantage to your other answer is that I can have a class hide the details and also have the power of things like optional p...
Does MongoDB's $in clause guarantee order
...d index order as shown.
If you need to preserve this order, then you basically have two options.
So let's say that you were matching on the values of _id in your documents with an array that is going to be passed in to the $in as [ 4, 2, 8 ].
Approach using Aggregate
var list = [ 4, 2, 8 ];
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Rails: Get Client IP address
...ackable" option includes a column for current/last_sign_in_ip in the users table.
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How to use Boost in Visual Studio 2010
...te's answer is pretty good already, I'm going to expand on it more specifically for Visual Studio 2010 as requested, and include information on compiling in the various optional components which requires external libraries.
If you are using headers only libraries, then all you need to do is to unar...