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How to compile a static library in Linux?
...and static library with the gnu compiler [gcc]
gcc -c -o out.o out.c
-c means to create an intermediary object file, rather than an executable.
ar rcs libout.a out.o
This creates the static library. r means to insert with replacement, c means to create a new archive, and s means to write an i...
Why does String.split need pipe delimiter to be escaped?
...xpects a regular expression argument. An unescaped | is parsed as a regex meaning "empty string or empty string," which isn't what you mean.
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What is the purpose of Android's tag in XML layouts?
...d.
The plot thickens
As an include file is a classic layout xml file, it means that it must have one top element.
So in case your file needs to include more than one widget, you would have to use a layout.
Let's say that include1.xml has now two TextView: a layout has to be declared. Let's choose...
How to update a menu item shown in the ActionBar?
... By doing that, you can have synchronization issues right? I mean. you dont know EXACTLY when onCreateOptionMenu is going to run, so you may reach your piece of code with the mnuTopMenuActionBar_ uninitialized, right? How would you work around that?
– acrespo
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How to alias a table in Laravel Eloquent queries (or using Query Builder)?
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@AldiUnanto What about Eloquent? Active record meant to be used on one table therefore you don't need aliases. When you use relations you're still dealing with one table at a time (i.e. when you define filters on the relationship). Now if you're using Query Builder with a...
MySQL foreign key constraints, cascade delete
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Hello @Hammerite, can you please tell me what is the meaning of KEY pkey (product_id), in the third CREATE TABLE query in accepted answer?
– Siraj Alam
Jun 3 '18 at 7:51
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Error Code: 1005. Can't create table '…' (errno: 150)
...) ENGINE = InnoDB DEFAULT CHARACTER SET = utf8;
... on the SQL statement means that there is some missing code.
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CSS @font-face - what does “src: local('☺')” mean?
...t).
Explained: The last src property takes precedence in the CSS cascade, meaning that the CSS will be parsed from bottom to top. The local(☺︎) will make IE skip the src at the bottom, without wasting bandwidth downloading fonts it can't use, and rather go straight to the font in .eot format (d...
John Carmack's Unusual Fast Inverse Square Root (Quake III)
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What is "mathematically purer" supposed to mean?
– Tara
Jul 30 '15 at 1:06
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There can be only one auto column
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Note also that "key" does not necessarily mean primary key. Something like this will work:
CREATE TABLE book (
isbn BIGINT NOT NULL PRIMARY KEY,
id INT NOT NULL AUTO_INCREMENT,
accepted_terms BIT(1) NOT NULL,
accepted_...