You can give alias names to a struct:
typedef struct Person {
char name[32];
int age;
} Person;
Person person;
Compared to the traditional way of declaring structs, programmers wouldn't need to have struct every time they declare an instance of that struct.
Note that the name Pers...
union U {
int a;
short b;
float c;
};
U u;
u.a = 10;
if (u.b == 10) {
// this is undefined behavior since 'a' was the last member to be
// written to. A lot of compilers will allow this and might issue a
// warning, but the result will be "as expected"; thi...
It is sometimes useful to verify that your work on Developer edition hasn't introduced a dependency on any features restricted to Enterprise edition.
You can do this using the sys.dm_db_persisted_sku_features system view, like so:
SELECT * FROM sys.dm_db_persisted_sku_features
Against the datab...
Unlike a named class or struct, unnamed classes and structs must be instantiated where they are defined, and cannot have constructors or destructors.
struct {
int foo;
double bar;
} foobar;
foobar.foo = 5;
foobar.bar = 4.0;
class {
int baz;
public:
int buzz;
...
The code listing below attempts to classify handwritten digits from the MNIST dataset. The digits look like this:
The code will preprocess these digits, converting each image into a 2D array of 0s and 1s, and then use this data to train a neural network with upto 97% accuracy (50 epochs).
"...
One problem often seen in code is loading all the data. This will greatly increase the load on the server.
Let's say I have a model called "location" that has 10 fields in it, but not all the fields are required at the same time. Let's say I only want the 'LocationName' parameter of that...
Some of the additional attributes are parsed by the npm website like repository, bugs or homepage and shown in the infobox for this packages
{
"main": "server.js",
"repository" : {
"type": "git",
"url": "git+https:/...
Occasionally, we may want to display dialogs with more than one pane of content. jQuery UI offers tabs that can be used in tandem with a dialog to make this possible. While it may be more common to have tabs within a dialog's content container, this example will demonstrate how to make a list of t...
Higher-order functions can be used to ensure that system resources are disposed, even when a treatment raises an exception. The pattern used by with_output_file allows a clean separation of concerns: the higher-order with_output_file functions takes care of managing the system resources bound to fi...
A deadlock occurs when two competing actions wait for the other to finish, and thus neither ever does.
In java there is one lock associated with each object.
To avoid concurrent modification done by multiple threads on single object we can use synchronized
keyword, but everything comes at a cost....
When an expression contains multiple operators, it can potentially be read in different ways. For example, the mathematical expression 1 + 2 x 3 could be read in two ways:
Add 1 and 2 and multiply the result by 3. This gives the answer 9. If we added parentheses, this would look like ( 1 + 2 )...
Suppose you have many changes in one or more files but from each file you only want to commit some of the changes, you can select the desired changes using:
git add -p
or
git add -p [file]
Each of your changes will be displayed individually, and for each change you will be prompted to choose...
A simple context tree (containing some common values that might be request scoped and included in a context) built from Go code like the following:
// Pseudo-Go
ctx := context.WithValue(
context.WithDeadline(
context.WithValue(context.Background(), sidKey, sid),
time.Now().A...
A database is created with the following SQL command:
CREATE DATABASE myDatabase;
This would create an empty database named myDatabase where you can create tables.
Matplotlib supports both object-oriented and imperative syntax for plotting. The imperative syntax is intentionally designed to be very close to Matlab syntax.
The imperative syntax (sometimes called 'state-machine' syntax) issues a string of commands all of which act on the most recent figure or a...
