March 23-28, London, UK
By ltorje | Dec 12, 2014 09:41 AM | Tags: None
To use or not to use cout instead of printf -- that is the question!
In case you missed Kenny Kerr's article on printf vs cout:
In defense of printf
From the article:
Folks seem to enjoy pointing out that I use printf in many of my examples of “modern C++”, as if printf is not really proper C++. Apparently, I should be using cout. The trouble is that cout isn’t exactly modern either...
By Marcin Hoppe | Dec 12, 2014 07:40 AM | Tags: gcc basics
A short article about two error-detection features in GCC:
Address and Thread Sanitizers in GCC
by Dodji Seketeli on Red Hat Developer Blog
From the article:
Since their 4.8 version, the C and C++ compilers of the GNU Compiler Collection are equipped with built-in memory and data race errors detectors named Address Sanitizer and Thread Sanitizer.
This article intends to quickly walk you through the highlights of these two interesting tools.
By Adrien Hamelin | Dec 11, 2014 10:48 PM | Tags: experimental advanced
Now available the presentation slides and videos of the LLVM Developers' Meeting that occured last october:
Notably can be found talks about security in the source code, the OpenMP implementation or optimizations to be made by the compiler, and many more.
By Blog Staff | Dec 11, 2014 10:58 AM | Tags: None
Quick A: Guaranteeing "this function won't throw" enables optimization opportunities.
Recently on SO:
What is noexcept useful for?
I saw that c++11 added the noexcept keyword. But I don't really understand why is it useful.
If the function throws when it's not supposed to throw - why would I want the program to crash?
So when should I use it?
Also, how will it work along with compiling with /Eha and using _set_se_translator? This means that any line of code can throw c++ exception - because it might throw a SEH exception (Because of accessing protected memory) and it will be translated to c++ exception.
What will happen then?
By Felix Petriconi | Dec 10, 2014 08:34 AM | Tags: intermediate boost
Do you know Boost.Pointer Container? Andrzej gives some useful information in his recent blog entry:
A gotcha with ptr_vector
He gives answers to these questions:
What would you use
boost::ptr_vectorfor? Why would you need to have a vector of pointers, which you want to delete yourself? Is it because:
- You want the objects to remain at the same address even if you re-allocate the array under the vector?
- You want to inter-operate with a library that already deals with owing pointers?
- You want it to be faster than if you were storing values in
std::vector?- You want the “polymorphic behavior” of your objects?
By Aurelia-Doina Popa | Dec 10, 2014 08:32 AM | Tags: visual studio intermediate
An article about a security feature in Visual Studio 2015, called Control Flow Guard.
Visual Studio 2015 Preview: Work-in-Progress Security Feature
by Jim Hogg
From the article:
By simply adding a new option to your Project, the Visual C++ compiler will inject extra security checks into your binaries. These will detect attempts to hijack your code. The check will stop execution of your code, before the hijacker can do damage to your data or PC...
By Jordi Mon Companys | Dec 10, 2014 08:29 AM | Tags: None
In case you missed it, this may be midly controversial but we felt it could be of interest:
Property Testing in C++
by Jeremy Wright
From the article:
One might say tests are shiny. I don't know if they are really shiny as much as I found another cool use for uniform_int_distribution<>...
By Razvan Pascalau | Dec 10, 2014 08:23 AM | Tags: qt framework basic
A new major version of the Qt has been released.
Qt 5.4 released
From the news article:
I am happy to announce that Qt 5.4 has been released today and is available for download from qt.io. Together with Qt 5.4, we have also released Qt Creator 3.3 and an update to Qt for device creation on embedded Linux and embedded Android.
But let’s start with Qt 5.4. One of the main focus areas of this Qt release has been around Web technologies and we have a lot of cool new things to offer there...
By miltonm | Dec 10, 2014 08:19 AM | Tags: None
In case you missed it, now you can develop web apps in C++ to run natively on Google Chrome. This tutorial shows how to develop a Native Client module in C++ and build and run it using PNaCl toolchain:
C++ Tutorial: Getting Started (Part 1)
This tutorial shows how to build and run a web application using Portable Native Client (PNaCl). This is a client-side application that uses HTML, JavaScript and a Native Client module written in C++. The PNaCl toolchain is used to enable running the Native Client module directly from a web page...
Portable Native Client or PNacl, which is supported on Google Chrome at the moment, lets you compile and run native code developed in C or C++ within a secure sandbox in browser. PNaCl uses the LLVM toolchain to generate OS-independent and architecture agnostic intermediate bytecode which is later loaded, translated and executed by the browser. To get more information on PNaCl and it's less portable companion NaCl check the native client developer documentation.
By Andrey Karpov | Dec 10, 2014 08:11 AM | Tags: None
Today on viva64:
Why Students Need the CppCat Code Analyzer
by Andrey Karpov
CppCat is a simple static code analyzer capable of detecting bugs in C/C++ programs. We started granting free academic licenses to all interested (students, teachers, and so on). For the sake of popularizing CppCat among students, I decided to write this post about errors that can be found in student lab work tasks posted at Pastebin.com...