hsiuhsiu

"""Sort Beancount Entries by meta['time']

Although beancount says that time is meaningless, there are situations
where an account that should not be negative may have a negative balance
at some point because transfers that occurred on the same day are
scheduled later and spending records are scheduled earlier.

This is not a big deal, but it is a bit odd.

    2021-10-01 balance Assets:Cash 500 USD

hsiuhsiu

auto p = std::remove_if(
    std::begin(a), std::end(a), [](const auto& e) { return e.seleted(); });
a.erase(p, std::end(a))

// in C++20
auto p = ranges::remove_if(a, &E::selected);
a.erase(p, std::end(a))

hsiuhsiu

// base case
template <class... Types, size_t n, size_t... indices>
std::tuple<Types...> toAnyTuple(
    std::array<std::any, n> const& arr,
    std::index_sequence<indices...>) {
  return std::make_tuple(std::any_cast<Types&>(arr[indices])...);
}
// general case
template <
    class... Types,

hsiuhsiu

#!/bin/bash

effs=(0 1 2 7 9)
effs2=(0 1 2 3 4 5 6 8)

for eff in "${effs[@]}" ; do
  for i in {30..37} ; do
    for j in {40..47} ; do
      ansi_eff="${eff};${i};${j}m"
      printf "\033[${ansi_eff} ${ansi_eff} \033[0m"

hsiuhsiu

#include <iostream>
#include <string>
#include <fstream>
#include <sstream>
using namespace std;

int main(int argc, char *argv[]) {
    string input_filename = argv[1];
    ifstream input_stream;
    input_stream.open(input_filename);

hsiuhsiu

#include <complex>
#include <iostream>
#include <valarray>
#include <vector>
using namespace std;
 
const double PI = 3.141592653589793238460;
 
typedef std::complex<double> Complex;
typedef std::valarray<Complex> CArray;