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How do I print the elements of a C++ vector in GDB?
...r
This will produce an output similar to:
$1 = std::vector of length 3, capacity 4 = {10, 20, 30}
To achieve above, you need to have gdb 7 (I tested it on gdb 7.01) and some python pretty-printer. Installation process of these is described on gdb wiki.
What is more, after installing above, thi...
Can I use __init__.py to define global variables?
... this. Suppose I have a few subpackages and each with several modules. How can I access that variable from these modules?
4...
Why do you need to create a cursor when querying a sqlite database?
... akin to the programming language concept of iterator.
And:
Cursors can not only be used to fetch data from the DBMS into an
application but also to identify a row in a table to be updated or
deleted. The SQL:2003 standard defines positioned update and
positioned delete SQL statements f...
Any difference between First Class Function and High Order Function
...ctions, it means that the language treats functions as values – that you can assign a function into a variable, pass it around etc. Higher-order functions are functions that work on other functions, meaning that they take one or more functions as an argument and can also return a function.
The ...
Equivalent of varchar(max) in MySQL?
...udes a byte or two to encode the length of a given string. So you actually can't declare a varchar of the maximum row size, even if it's the only column in the table.
mysql> CREATE TABLE foo ( v VARCHAR(65534) );
ERROR 1118 (42000): Row size too large. The maximum row size for the used table typ...
Maximum Length of Command Line String
...g Microsoft Windows XP or later, the maximum length of the string that you can use at the command prompt is 8191 characters.
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Why does LayoutInflater ignore the layout_width and layout_height layout parameters I've specified?
...l sample demonstration project. The following tutorials shows how to dynamically populate a layout using LayoutInflater.
Before we get started see what LayoutInflater.inflate() parameters look like:
resource: ID for an XML layout resource to load (e.g., R.layout.main_page)
root: Optional view to ...
Passing command line arguments from Maven as properties in pom.xml
...the pom, and on the command-line, the command-line takes precedence. This can be useful for providing overridable defaults.
– dan carter
Jun 30 '15 at 1:53
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Display open transactions in MySQL
I did some queries without a commit. Then the application was stopped.
4 Answers
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How to create default value for function argument in Clojure
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A function can have multiple signatures if the signatures differ in arity. You can use that to supply default values.
(defn string->integer
([s] (string->integer s 10))
([s base] (Integer/parseInt s base)))
Note that assu...