frangio

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

error Overflow();

/// Multiply-and-divide without intermediate overflow.
/// @return r = (x * y) / d
function mulDiv(uint x, uint y, uint d) pure returns (uint r) { unchecked {
    (uint z1, uint z0) = mul_1_1_2(x, y);
    (r,) = div_2_1_1(z1, z0, d);

frangio

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

error Overflow();

uint constant b = 2 ** 128;

/// Divides a two word number by one word number.
/// Returns q and r such that u1 << 256 + u0 = q * v + r.
function divlu(uint u1, uint u0, uint v) pure returns (uint q, uint r) { unchecked {

frangio

function nlz(uint x) pure returns (uint n) {
    uint y;
    n = 256;
    y = x >> 128; if (y != 0) { n = n - 128; x = y; }
    y = x >>  64; if (y != 0) { n = n -  64; x = y; }
    y = x >>  32; if (y != 0) { n = n -  32; x = y; }
    y = x >>  16; if (y != 0) { n = n -  16; x = y; }
    y = x >>   8; if (y != 0) { n = n -   8; x = y; }
    y = x >>   4; if (y != 0) { n = n -   4; x = y; }
    y = x >>   2; if (y != 0) { n = n -   2; x = y; }

frangio

unsigned divlu(unsigned u1, unsigned u0, unsigned v,
               unsigned *r)   {
   const unsigned b = 65536;  // Number base (16 bits).
   unsigned un1, un0,         // Norm. dividend LSD's.
            vn1, vn0,         // Norm. divisor digits.
            q1, q0,           // Quotient digits.
            un32, un21, un10, // Divident digit pairs.
            rhat;             // A remainder.
   int s;                     // Shift amount for norm.

frangio

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

import "@openzeppelin/contracts/utils/math/Math.sol";

struct Accumulator {
    uint concrete;
    uint virtualRate;
    uint virtualSince;
}

frangio

import type { Subscriber } from 'svelte/store';

export function store<T>(start: () => T, stop?: () => void) {
  const subscribers = new Set<Subscriber<T>>();

  let value: T;

  function notify() {
    for (const fn of subscribers) {
      fn(value);

frangio

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.4;

import "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol";
import "@openzeppelin/contracts-upgradeable/token/ERC20/ERC20Upgradeable.sol";
import "@openzeppelin/contracts-upgradeable/token/ERC20/extensions/draft-ERC20PermitUpgradeable.sol";

contract MyTokenV1 is Initializable, ERC20Upgradeable {
    function initialize() initializer public {
        __ERC20_init("MyToken", "MTK");

frangio

0x09cd18d17c48a9e5f7919dbb8267cbc0f9c75e95a3c94f9c4f910edaf90c2db6

frangio

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.9;

// Unlike the string type, ShortString is a value type that can be made immutable.
// It supports strings of at most 32 bytes and assumes they don't contain null bytes.

type ShortString is bytes32;

error StringTooLong(string s);

frangio

type GraphGenerator<T> = Iterable<[T, T?]>;

interface Edges<T> {
  pred: T[];
  succ: T[];
}

export function toposort<T, G extends GraphGenerator<T>>(graph: G): T[] {
  const sorted = new Set<T>();
  const nodes = new Map<T, Edges<T>>();