C++ and C#

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C++/C# Community

A community related to learning about C++ — including elements of the .NET framework — and C#. We’ll explore available development tools and best practices, as well as deployment on the Web, in browser-based applications and on the desktop.

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Latest from Dice

Creating Random Access Text in C#

Contents of the Two Files
Back in April I looked at disk folders as a possible alternative to NoSQL or using a relational DB. My conclusion wasn’t encouraging—I was concerned about poor performance, especially on Linux. The use case I examined was for a server that had from 100,000 to 1 million users. I wanted to store and retrieve text files for any user. Those files could vary in length from a few bytes to a few KB. Back in the dark ages—before the Web… continue…

How to Write a Game Runner Program

Cards
I wrote the runsevens game runner program to automate the running of the Tournament of Sevens programming challenge, and it was an interesting little project. It’s designed to do the following: Maintain a ladder of players. Run games of Sevens for a number of players by executing standalone exes. Update the ladder with games’ results. That’s a fairly high-level view. Running each game of Sevens also requires shuffling a deck of cards, dealing them to the players and tracking card… continue…

How One Line of Code Forced a Full OS Release

Posted In C++/C#, iOS, Working in Tech
iPhone Update
It’s not often that Apple ‘fesses up about a bug, but the release iOS 7.0.6 came about because somehow an extra line of code got added to a function and broke it. Normally a bug would probably not warrant a complete release, but unfortunately this one-liner broke SSL connection verification. This is the code that checks that the connection is talking to the correct destination and uses SSL and TLS to verify it. You can take a look at the… continue…

A Look at Microsoft’s PCL for SQLite

Posted In C++/C#, Working in Tech
SQLiteSpy
Having grown up in a world where the concept was anathema to Microsoft, it seems strange to think of them now on the side of open source. In 2002, for instance, there was public debate about the GPL with Microsoft taking a stand against it. Now, there’s a part of Microsoft that’s pushing out open source, “Building bridges between Microsoft and non-Microsoft technologies.” Now it has to be said that this does not come from sheer altruism. Microsoft has come… continue…

2 Free C Compilers Worth a Look

Posted In C++/C#, Working in Tech
Debugging in Pelles
It’s surprising how important the C programming language remains, as it’s now over 40 years since it was first created. It’s a simple but useful language that gives you a very low level view of memory and how variables are stored. It doesn’t have any high-level libraries for hash maps or lists; ANSI C only gives you arrays and pointers. If you want advanced data structures you have to either write them yourself using pointers or get third party or… continue…

Slashdot: News for Nerds

New HTML Picture Element To Make Future Web Faster

posted 3 hours | from nerdyalien

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nerdyalien writes: At some point, haven't all web developers spent an unjustifiable number of hours trying to optimize a desktop site for mobile devices? Responsive web design provides a solution: "develop once, works in every device." However, still it downloads multi-MB images and re-sizes them based on device screen resolution. Retrieving optimized images from the server, based on device (desktop, tablet, phone) and the device's internet connection (fiber, broadband, mobile), has always been an open problem. Recently, a number of freelance developers are tackling this with a new HTML element, <picture>, which informs the web browser to download optimized images from the server. The tag will be featured in Chrome and Firefox later this year. Will this finally deliver us faster web browsing on mobile devices and an easier web development experience?

Code.org Discloses Top Donors

posted 1 hour | from theodp

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theodp (442580) writes "Under the leadership of Code.org, explained the ACM, it joined CSTA, NCWIT, NSF, Microsoft and Google in an effort "to reshape the U.S. education system," including passing a federal law making Computer Science a "core subject" in schools. If you're curious about whose money helped fuel the effort, Code.org's Donors page now lists those who gave $25,000+ to $3,000,000+ to the K-12 CS cause (the nonprofit plans to raise $20-30 million for 2015-16 operations). Microsoft is at the top of the list as a Platinum Supporter ($3,000,000+), while Bill Gates is Gold ($1,000,000+), and Steve Ballmer is Silver ($500,000+). Interestingly, six of Code.org's ten biggest donors are also Founders of Mark Zuckerberg's FWD.us tech immigration reform PAC."

Yahoo Stops New Development On YUI

posted 2 days | from dnebin

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First time accepted submitter dnebin writes Yahoo announced that they will cease new development on their javascript framework YUI, bowing to industry trends towards Node.js, Angular, and others. The announcement reads in part: "The consequence of this evolution in web technologies is that large JavaScript libraries, such as YUI, have been receiving less attention from the community. Many developers today look at large JavaScript libraries as walled gardens they don't want to be locked into. As a result, the number of YUI issues and pull requests we've received in the past couple of years has slowly reduced to a trickle. Most core YUI modules do not have active maintainers, relying instead on a slow stream of occasional patches from external contributors. Few reviewers still have the time to ensure that the patches submitted are reviewed quickly and thoroughly."

MIPS Tempts Hackers With Raspbery Pi-like Dev Board

posted 3 days | from deviceguru

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DeviceGuru (1136715) writes "In a bid to harness the energy and enthusiasm swirling around today's open, hackable single board computers, Imagination Technologies, licensor of the MIPS ISA, has unveiled the Creator C120 development board, the ISA's counter to ARM's popular Raspberry Pi and BeagleBone Black SBCs. The MIPS dev board is based on a 1.2GHz dual-core MIPS32 system-on-chip and has 1GB RAM and 8GB flash, and there's also an SD card slot for expansion. Ports include video, audio, Ethernet, both WiFi and Bluetooth 4.0, and a bunch more. OS images are already available for Debian 7, Gentoo, Yocto, and Arch Linux, and Android v4.4 is expected to be available soon. Perhaps the most interesting feature of the board is that there's no pricing listed yet, because the company is starting out by giving the boards away free to developers who submit the most interesting projects."

Hal Finney, PGP and Bitcoin Pioneer, Dies At 58

posted 3 days | from brokenin2

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New submitter brokenin2 writes Hal Finney, the number two programmer for PGP and the first person to receive a Bitcoin transaction, has passed away. From the article on Coindesk: "Shortly after collaborating with Nakamoto on early bitcoin code in 2009, Finney announced he was suffering from ALS. Increasing paralysis, which eventually became near-total, forced him to retire from work in early 2011."

Google Introduces HTML 5.1 Tag To Chrome

posted 4 days | from darthcamaro

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darthcamaro (735685) writes "Forget about HTML5, that's already passe — Google is already moving on to HTML5.1 support for the upcoming Chrome 38 release. Currently only a beta, one of the biggest things that web developers will notice is the use of the new "picture" tag which is a container for multiple image sizes/formats. Bottom line is it's a new way to think about the "IMG" tag that has existed since the first HTML spec."

IEEE Guides Software Architects Toward Secure Design

posted 4 days | from msm1267

design 50

msm1267 writes: The IEEE's Center for Secure Design debuted its first report this week, a guidance for software architects called "Avoiding the Top 10 Software Security Design Flaws." Developing guidance for architects rather than developers was a conscious effort the group made in order to steer the conversation around software security away from exclusively talking about finding bugs toward design-level failures that lead to exploitable security vulnerabilities. The document spells out the 10 common design flaws in a straightforward manner, each with a lengthy explainer of inherent weaknesses in each area and how software designers and architects should take these potential pitfalls into consideration.

State of the GitHub: Chris Kelly Does the Numbers

posted 5 days | from timothy

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I talked with Chris Kelly of GitHub at last week's LinuxCon about GitHub. He's got interesting things to say about the demographics and language choices on what has become in short order (just six years) one of the largest repositories of code in the world, and one with an increasingly sophisticated front-end, and several million users. Not all of the code on GitHub is open source, but the majority is -- handy, when that means an account is free as in beer, too. (And if you're reading on the beta or otherwise can't view the video below, here's the alternative video link.)

PHP 5.6.0 Released

posted 5 days | from anonymous coward

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An anonymous reader writes The PHP team has announced the release of PHP 5.6.0. New features include constant scalar expressions, exponentiation using the ** operator, function and constant importing with the use keyword, support for file uploads larger than 2 GB, and phpdbg as an interactive integrated debugger SAPI. The team also notes important changes affecting compatibility. For example: "Array keys won't be overwritten when defining an array as a property of a class via an array literal," json_decode() is now more strict at parsing JSON syntax, and GMP resources are now objects. Here is the migration guide, the full change log, and the downloads page.

How Red Hat Can Recapture Developer Interest

posted 6 days | from snydeq

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snydeq writes: Developers are embracing a range of open source technologies, writes Matt Asay, virtually none of which are supported or sold by Red Hat, the purported open source leader. "Ask a CIO her choice to run mission-critical workloads, and her answer is a near immediate 'Red Hat.' Ask her developers what they prefer, however, and it's Ubuntu. Outside the operating system, according to AngelList data compiled by Leo Polovets, these developers go with MySQL, MongoDB, or PostgreSQL for their database; Chef or Puppet for configuration; and ElasticSearch or Solr for search. None of this technology is developed by Red Hat. Yet all of this technology is what the next generation of developers is using to build modern applications. Given that developers are the new kingmakers, Red Hat needs to get out in front of the developer freight train if it wants to remain relevant for the next 20 years, much less the next two."