This structure is supposed to iterate over the lines of an input stream, using std::getline. Any remark is welcome! #include <iostream> //istream #include <cassert> struct line_iterator { explicit line_iterator( std::istream & is ) : m_stream( &is ) , m_line( extract_lin...

having Data.java public class Data { private int value; public Data(int value) { this.value = value; } public synchronized int getValue(int mTrhead) { System.out.println("MyTrhead " + mTrhead + " gets value " + value); return value; } public synchronized void setValue(i...

I have this simple code in Python: input = open("baseforms.txt","r",encoding='utf8') S = {} for i in input: words = i.split() S.update( {j:words[0] for j in words} ) print(S.get("sometext","not found")) print(len(S)) It requires 300MB for work. "baseforms.txt" size is 123M. I've wrote...

1) Postgresql 2) User has_many :reports 3) Report belongs_to :user 3) Report belongs_to :publication 4) Publication has_many :reports 4) Publication scope :photos, -> { where(publication_type: 'Social::Photo').where(show: true) } 4) Publication scope :tweets, -> { where(publication_type: 'Socia...

I have a below method in Java 8 which checks for message pattern and finds the line number from the message private LawfirmInvoice getInvoiceForErrormessage(InvoiceParcel parcel, String message) { if (parcel.getInvoices() != null) { if (parcel.getInvoices().size() == 1) ...

The following code reads a file, splits its data, replaces some characters in the data, and then joins the data again: fs.readFile(filename, 'utf8', function(err, data) { if (err) throw err data = data.split('\n\n') var tree = data.slice() for (var i = 0; i < tree.length; ++i) { if...

I am currently trying to teach myself scala by rewriting projects from my intro CS class, which was taught in C++. In addition to just learning the syntax I am trying to gain understanding of how functional programming works and what is considered good functional programming style. Below I've i...

I have a domain model which determines whether a user has any access left. this class is loaded from the database on each web request. the setter on the property that determines the access limit logic is only accessed when the database loads this data into the domain object. should I be concer...

I have this simple implementation for array sorting: #include <iostream> #include <stdlib.h> using namespace std; // some magic for the sorter int compare(const void *i, const void *j) { int a = *(int *) i, b = *(int *) j; return a < b ? -1 : a > b ? 1 : 0; } int main() { int arr[...

I have a class CreateUser in services folder in Rails app. Should I leave it as it is or should I rename it CreateUserService? It seem for me like "Service" postfix is useless and does not commit anything to meaning of the class.

Inspired by this comment I decided to implement an iterator adaptor that takes another iterator and returns each element and a given number of its neighbors. The final solution should be applicable to most iterator types but this review is only about my first solution for random access iterators...

The previous and initial iteration at Simulating a GUI windowing system I have essentially cleaned the code based on the only answer. Now I have: MyCanvas.java: package net.coderodde.gui.simulation; import java.awt.Canvas; import java.awt.Color; import java.awt.Dimension; import java.awt....

I'm implementing a quick and dirty lock-free MPMC queue in C++, based on the v3 Disruptor algorithm. The implementation is pretty simple: Data to be shared between threads is stored in a ring buffer. The ring buffer maintains a sequence number that points to the next available slot. Consumer th...

For eligibility to events I need to know the age of a competitor at a specific date. Now the thing is the date calcs are checked in two places, an online php app where the entries are registered, and an offline java app that runs the events. So I have 2 versions of the same code, the php one wa...

I created this function and I'm unsure if it is sufficient for "real world use", because all code snippets on the net I found for recursive copy functions used functions like $hDir = opendir($sSrc) which I don't think are necessary. That's why I like to have my func checked by some php-profess...

I have a method which extract filedata and converts it into String array protected String[] extractLedesText(byte[] fileData) { // Remove the BOM if present byte[] array = { (byte) 0xEF, (byte) 0xBB, (byte) 0xBF }; byte[] data = { fileData[0], fileData[1], fileData[2] }; if (fil...

This implementation of discriminated union based on C++ inherent unions and inspired by this article, but, alas, there is a lack of constexpr-awareness concern. #pragma once #include <type_traits> #include <typeinfo> #include <limits> template< typename ...types > struct identity { }; template<