gsingh93

# Special mode for GDB that allows to debug/disassemble REAL MODE x86 code
#
# It has been designed to be used with QEMU or BOCHS gdb-stub
#
# 08/2011 Hugo Mercier - GPL v3 license
#
# Freely inspired from "A user-friendly gdb configuration file" widely available
# on the Internet

set confirm off

malja

// Save screenshot
// file: Filename for created screenshot
// renderer: pointer to SDL_Renderer
bool saveScreenshot(const std::string &file, SDL_Renderer *renderer ) {
  // Used temporary variables
  SDL_Rect _viewport;
  SDL_Surface *_surface = NULL;
  
  // Get viewport size
  SDL_RenderGetViewport( renderer, &_viewport);

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

chrisdone

Common

export OPT=/opt
export BUILDS=/some/where/mini_linux
mkdir -p $BUILDS

Linux kernel

mbinna

Effective Modern CMake

Getting Started

For a brief user-level introduction to CMake, watch C++ Weekly, Episode 78, Intro to CMake by Jason Turner. LLVM’s CMake Primer provides a good high-level introduction to the CMake syntax. Go read it now.

After that, watch Mathieu Ropert’s CppCon 2017 talk Using Modern CMake Patterns to Enforce a Good Modular Design (slides). It provides a thorough explanation of what modern CMake is and why it is so much better than “old school” CMake. The modular design ideas in this talk are based on the book [Large-Scale C++ Software Design](https://www.amazon.de/Large-Scale-Soft

jvaubourg

#!/bin/bash

set -e

# This is client side, with:
#   apt install iodine redsocks
#   systemctl disable redsocks
#
# For the server side:
#   apt install iodine

aallan

000000	Officially Xerox
000001	SuperLAN-2U
000002	BBN (was internal usage only, no longer used)
000003	XEROX CORPORATION
000004	XEROX CORPORATION
000005	XEROX CORPORATION
000006	XEROX CORPORATION
000007	XEROX CORPORATION
000008	XEROX CORPORATION
000009	powerpipes?

peterspackman

# Sample toolchain file for building for Windows from an Ubuntu Linux system.
#
# Typical usage:
#    *) install cross compiler: `sudo apt-get install mingw-w64`
#    *) cd build
#    *) cmake -DCMAKE_TOOLCHAIN_FILE=~/mingw-w64-x86_64.cmake ..
# This is free and unencumbered software released into the public domain.

set(CMAKE_SYSTEM_NAME Windows)
set(TOOLCHAIN_PREFIX x86_64-w64-mingw32)

klgraham

#include <stdio.h>
#include <lua.h>
#include <lualib.h>
#include <lauxlib.h>
#include "luajit.h"

int main(int argc, char *argv[])
{
  int status;
  lua_State *L;

jbovet

#!/bin/bash

# mirror_test.sh
# Originally written for Ubuntu by Lance Rushing <[email protected]>
# Dated 9/1/2006
# Taken from http://ubuntuforums.org/showthread.php?t=251398
# This script is covered under the GNU Public License: http://www.gnu.org/licenses/gpl.txt

# Modified for Slackware by Jeremy Brent Hansen <jebrhansen -at- gmail.com>
# Modified 2015/11/06