shafik

What is the Strict Aliasing Rule and Why do we care?

(OR Type Punning, Undefined Behavior and Alignment, Oh My!)

What is strict aliasing? First we will describe what is aliasing and then we can learn what being strict about it means.

In C and C++ aliasing has to do with what expression types we are allowed to access stored values through. In both C and C++ the standard specifies which expression types are allowed to alias which types. The compiler and optimizer are allowed to assume we follow the aliasing rules strictly, hence the term strict aliasing rule. If we attempt to access a value using a type not allowed it is classified as undefined behavior(UB). Once we have undefined behavior all bets are off, the results of our program are no longer reliable.

Unfortunately with strict aliasing violations, we will often obtain the results we expect, leaving the possibility the a future version of a compiler with a new optimization will break code we th

jshaw

Byobu Commands
==============

        byobu                              Screen manager


Level 0 Commands (Quick Start)
------------------------------

        <F2>                               Create a new window

olih

Processing JSON using jq

jq is useful to slice, filter, map and transform structured json data.

Installing jq

On Mac OS

brew install jq

octocat

# Compiled source #
###################
*.com
*.class
*.dll
*.exe
*.o
*.so

# Packages #

Liryna

You might want to read this to get an introduction to armel vs armhf.

If the below is too much, you can try Ubuntu-ARMv7-Qemu but note it contains non-free blobs.

Running ARM programs under linux (without starting QEMU VM!)

First, cross-compile user programs with GCC-ARM toolchain. Then install qemu-arm-static so that you can run ARM executables directly on linux

bishboria

These links no longer work. Springer have pulled the free plug.

Graduate texts in mathematics

duplicates = multiple editions

A Classical Introduction to Modern Number Theory, Kenneth Ireland Michael Rosen

A Classical Introduction to Modern Number Theory, Kenneth Ireland Michael Rosen

abstractalgo

Gamma, gamut, tone mapping, color, sRGB

sRGB learning curve
https://gamedevdaily.io/the-srgb-learning-curve-773b7f68cf7a#.y9sitvhmm

Color Math
http://www.essentialmath.com/GDC2015/VanVerth_Jim_DoingMathwRGB.pdf

The Importance of Terminology and sRGB Uncertainty
http://colour-science.org/posts/the-importance-of-terminology-and-srgb-uncertainty/

dwilliamson

This is my little Christmas-break experiment trying to (among other things) reduce the amount of generated code for containers.

THIS CODE WILL CONTAIN BUGS AND IS ONLY PRESENTED AS AN EXAMPLE.

The C++ STL is still an undesirable library for many reasons I have extolled in the past. But it's also a good library. Demons lie in this here debate and I have no interest in revisiting it right now.

The goals that I have achieved with this approach are:

BenWhitehead

[Unit]
Description=TeamCity Build Agent
After=network.target

[Service]
Type=forking
PIDFile=$AGENT_HOME/logs/buildAgent.pid
ExecStart=/usr/bin/sudo -u teamcity $AGENT_HOME/bin/agent.sh start
ExecStop=/usr/bin/sudo -u teamcity $AGENT_HOME/bin/agent.sh stop

orls

1

    std::set phoenix;
    phoenix.key_comp();

http://www.imdb.com/title/tt0373889

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