View fix.md
sudo apt-get install xserver-xorg-legacy

Edit /etc/X11/Xwrapper.config

allowed_users=anybody
needs_root_rights=yes
View weak-ptr-global.cpp
#include <cassert>
#include <iostream>
#include <memory>
#include <mutex>
#include <string>
#include <unordered_map>
template <typename T>
std::shared_ptr<T> get_global(int id) {
using Map = std::unordered_map<int, std::weak_ptr<T>>;
View client.js
var request = require('request');
var path = require('path');
var fs = require('fs');
var filename = process.argv[2];
var target = 'http://localhost:3000/upload/' + path.basename(filename);
var rs = fs.createReadStream(filename);
var ws = request.post(target);
View qt-eigen-opengl-demo.cmake
add_custom_target(demos)
find_package(Qt5Core REQUIRED)
find_package(Qt5Gui REQUIRED)
find_package(Qt5OpenGL REQUIRED)
find_package(OpenGL)
find_package(Eigen3)
set(CMAKE_AUTOMOC ON)
View fix_modular_sequence.cpp
template <typename T>
T fix_modular_sequence(T&& seq, const typename T::value_type modulus) {
const auto threshold = modulus / 2.0;
auto it = seq.begin();
auto prev = *it;
while (it != seq.end()) {
++it;
auto& curr = *it;
auto diff = curr - prev;
if (std::abs(diff) > threshold) curr -= (diff < 0 ? -1 : 1) * modulus;
View chromium-gpu-vivante.sh
#!/bin/sh
if [ "${1}" == "forever" ]; then
while sleep 1; do "${0}"; done
exit 0
fi
export DISPLAY=:0
# url="http://jsfiddle.net/gionaf/Ugc5g/embedded/result/"
View cross-compile-qt5.8-rpi3.sh
./configure -release -opengl es2 -device linux-rpi3-vc4-g++ -device-option CROSS_COMPILE=/opt/rpi3/tools/arm-bcm2708/gcc-linaro-arm-linux-gnueabihf-raspbian-x64/bin/arm-linux-gnueabihf- -sysroot /opt/rpi3/gentoo-sysroot/ -extprefix /opt/Qt/5.8/rpi3 -v -nomake examples -nomake tests -no-use-gold-linker -opensource -confirm-license -skip qtscript
gmake
sudo gmake install
View core-dump.cpp
#include <iostream>
#include <sys/resource.h>
int main() {
rlimit core_limits;
core_limits.rlim_cur = core_limits.rlim_max = RLIM_INFINITY;
setrlimit(RLIMIT_CORE, &core_limits);
std::cout << "begin\n";
int* x = 0;
View gol.md
  • Qualsiasi cella viva con meno di due celle vive adiacenti muore, come per effetto d'isolamento;
  • Qualsiasi cella viva con due o tre celle vive adiacenti sopravvive alla generazione successiva;
  • Qualsiasi cella viva con più di tre celle vive adiacenti muore, come per effetto di sovrappopolazione;
  • Qualsiasi cella morta con esattamente tre celle vive adiacenti diventa una cella viva, come per effetto di riproduzione.
View list_screen_output_modes.sh
#!/bin/sh
output=""
xrandr | while read line; do
if echo "${line}" | grep 'connected' > /dev/null; then
if echo "${line}" | grep ' connected' > /dev/null; then
output="$( echo "${line}" | sed 's/\(.*\) connected.*/\1/' )"
fi
elif ! echo "${line}" | grep '^Screen' > /dev/null; then