View waterfall.cpp
#include <qwt_color_map.h> | |
#include <qwt_matrix_raster_data.h> | |
#include <boost/circular_buffer.hpp> | |
#include <QtCore/QMutex> | |
#include "waterfall.h" | |
using boost::circular_buffer; | |
using std::make_shared; |
View CMakeLists.txt
cmake_minimum_required(VERSION 3.8.0) | |
# Project info | |
project(sdhr) | |
set(${PROJECT_NAME}_MAJOR "0") | |
set(${PROJECT_NAME}_MINOR "0") | |
set(${PROJECT_NAME}_PATCH "1") | |
set(VERSION "${${PROJECT_NAME}_MAJOR}.${${PROJECT_NAME}_MINOR}.${${PROJECT_NAME}_PATCH}") | |
set(CMAKE_CXX_STANDARD 11) |
View simple shell scripting
const x:num = 123.456; // this is a constant that never changes | |
const y:str = "hello world"; // constant string literal | |
var a:str = "hello"; // create a string variable, and assign to string literal | |
var b:num = 23.4; // create a number variable, and assign number | |
var c:str[] = ["hello", "world"]; // create an array variable, assign literal | |
CWD = "/path/to/current/directory"; // CWD is a special variable that can be set or read, and represents the current working directory | |
print(ARG[0]); // ARG is a spcecial variable that can only be read; it is a str[]. The first argument (zero index) is the first argument passed to the script. |
View qt_logging.cpp
#include "mainwindow.h" | |
#include <QApplication> | |
#include <QFile> | |
#include <QDebug> | |
#include <QLoggingCategory> | |
Q_LOGGING_CATEGORY(fcIo, "fc.io") | |
View lib.rs
let mut wal_file = try!(OpenOptions::new().read(true).write(true).create(true).open(tree_file_path.to_owned() + ".wal")); | |
// if we have a WAL file, just replay it into the mem_tree | |
if try!(wal_file.metadata()).len() != 0 { | |
let mut buff = vec![0; node_size]; | |
while true { | |
match wal_file.read_exact(&mut buff) { | |
Ok(_) => { | |
let k = try!(decode(&buff[0..max_key_size])); |
View dbutils_ex4.java
QueryRunner runner = new QueryRunner(dataSource); | |
// Use the BeanListHandler implementation to convert all | |
// ResultSet rows into a List of Person JavaBeans. | |
ResultSetHandler<List<Person>> handler = new BeanListHandler<Person>(Person.class); | |
// Execute the SQL statement and return the results in a List of | |
// Person objects generated by the BeanListHandler. | |
List<Person> persons = runner.query("SELECT * FROM Person").execute(handler); |
View dbutils_ex3.java
AsyncExecutor asyncRun = new AsyncExecutor(Executors.newFixedThreadPool(5)); | |
try | |
{ | |
// Setup the UpdateExecutor | |
UpdateExecutor executor = runner.update("UPDATE Person SET height=:height WHERE name=:name") | |
.bind(":height", 2.05) | |
.bind("name", "John Doe"); | |
// Returns a Future for the update call |
View dbutils_ex2.java
QueryRunner runner = new QueryRunner(dataSource); | |
try | |
{ | |
// Execute the SQL insert statement | |
runner.insert("INSERT INTO Person (name,height) VALUES (:name,:height)") | |
.bind("name", "John Doe") | |
.bind("height", 1.82) | |
.execute(); | |
// Now it's time to rise to the occation... |
View dbutils_ex1.java
// Use a ResultSetHandler implementation, ArrayHandler, to convert the | |
// first row into an Object[]. | |
ResultSetHandler<Object[]> handler = new ArrayHandler(); | |
// Create a QueryRunner that will use connections from | |
// the given DataSource | |
QueryRunner runner = new QueryRunner(dataSource); | |
// Generate a QueryExecutor for the query | |
QueryExecutor executor = runner.query("SELECT * FROM Person WHERE first_name=:first_name and last_name = :last_name"); |
View SimpleStatistics.java
final DescriptiveStatistics descriptiveStats = new DescriptiveStatistics(); // stores values | |
final SummaryStatistics summaryStats = new SummaryStatistics(); // doesn't store values | |
final Frequency frequency = new Frequency(); | |
// add numbers into our stats | |
for(int i=0; i < NUM_VALUES; ++i) { | |
values[i] = rng.nextInt(MAX_VALUE); | |
descriptiveStats.addValue(values[i]); | |
summaryStats.addValue(values[i]); |
NewerOlder