ahamez

defmodule Struct do
  defstruct [:a, :b, :c, :d, :e, :f, :g, :h]
end

defmodule CreateStruct do

  def create1() do
    struct(Struct, create1_fields())
  end

ahamez

// Convert 4 unsigned big endian bytes to int
int x = java.nio.ByteBuffer.wrap(bytes).getInt();

ahamez

#include <iomanip>
#include <iostream>
#include <string>
#include <vector>

#include <openssl/hmac.h>

int main()
{
  // https://tools.ietf.org/html/rfc2104#section-3

ahamez

// g++-8 -std=c++17 -Wall -Wextra -fsanitize=address c++17.cc

#include <array>
#include <cstddef>
#include <iostream>
#include <set>
#include <sstream>
#include <string>
#include <string_view>
#include <tuple>

ahamez

#include <functional>
#include <iostream>
#include <string>
#include <variant>

template <typename... Ts>
struct make_visitor
  : Ts...
{
  using Ts::operator()...;

ahamez

// When compiled (macOS, 64 bits) with g++-8 -O3 -std=c++14  ub.cc  -Wall -Wextra:
// 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0
// 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
// Notice the '1' coming from nowhere :-)

// Note that clang++ produces:
// 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
// 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

#include <cstdint>

ahamez

#include <climits>
#include <cmath>
#include <fstream>
#include <iostream>
#include <limits>
#include <utility>
#include <vector>

// IEEE 754 does not specify endianess (https://en.wikipedia.org/wiki/Endianness#Floating_point).
// So, to have a portable representation, we can "decompose" the floating-point value using frexp().

ahamez

// clang++ -I. -std=c++17 -Wall -Wextra yocto_merge_manifest_licenses.cc

#include <fstream>
#include <iostream>
#include <regex>
#include <set>
#include <string>
#include <tuple>

#include <boost/algorithm/string/replace.hpp>

ahamez

// clang++ -std=c++17 -Wall -Wextra pointer_member.cc

#include <iostream>

struct foo
{
  int a;
  int b;
};

ahamez

# install aws cli first and configure it with credentials and default region
# the script will iterate over all regions of AWS

#! /bin/sh

for region in `aws ec2 describe-regions --output text | cut -f4`
do
     echo -e "\nListing Instances in region:'$region'..."
     # aws ec2 describe-instances --query "Reservations[*].Instances[*].{IP:PublicIpAddress,ID:InstanceId,Type:InstanceType,State:State.Name,Name:Tags[0].Value}" --output=table --region $region