jboner

Latency Comparison Numbers (~2012)
----------------------------------
L1 cache reference                           0.5 ns
Branch mispredict                            5   ns
L2 cache reference                           7   ns                      14x L1 cache
Mutex lock/unlock                           25   ns
Main memory reference                      100   ns                      20x L2 cache, 200x L1 cache
Compress 1K bytes with Zippy             3,000   ns        3 us
Send 1K bytes over 1 Gbps network       10,000   ns       10 us
Read 4K randomly from SSD*             150,000   ns      150 us          ~1GB/sec SSD

barbuza

# -*- coding: utf-8 -*-

import os
import sys
import json
from argparse import ArgumentParser


parser = ArgumentParser()
parser.add_argument("--haml", dest="haml", action="store_true", default=False,

andreadipersio

package main 
 
import (
    "fmt"
    "log"
    "flag"
 
    "net/http"
)
 

planetbeing

lldb --attach-name FaceTime
expr NSArray* $windows = (NSArray*)[(NSApplication*)[NSApplication sharedApplication] windows];
expr unsigned int $count = [$windows count]
expr -- for(unsigned int i = 0; i < $count; ++i) { [(NSWindow*)[$windows objectAtIndex:i] setLevel:5]; }
expr Class $window = (Class)NSClassFromString(@"NSWindow")
expr void* $setLevel = (void*)class_getInstanceMethod($window, @selector(setLevel:))
expr void* $description = (void*)class_getMethodImplementation($window, @selector(description))
call (void)method_setImplementation($setLevel, $description)
process detach
quit

mimoo

# plaid ctf triplets
data = [
    [0xfd2066554e7f2005082570ddf50e535f956679bf5611a11eb1734268ffe32eb0f2fc0f105dd117d9d739767f300918a67dd97f52a3985483aca8aa54998a5c475842a16f2a022a3f5c389a70faeaf0500fa2d906537802ee2088a83f068aba828cc24cc83acc74f04b59a0764de7b64c82f469db4fecd71876eb6021090c7981, 0xa23ac312c144ce829c251457b81d60171161655744b2755af9b2bd6b70923456a02116b54136e848eb19756c89c4c46f229926a48d5ac030415ef40f3ea185446fa15b5b5f11f2ec2f0f971394e285054182d77490dc2e7352d7e9f72ce25793a154939721b6a2fa176087125ee4f0c3fb6ec7a9fdb15510c97bd3783e998719, 0x593c561db9a04917e6992328d1ecadf22aefe0741e5d9abbbc12d5b6f9485a1f3f1bb7c010b19907fe7bdecb7dbc2d6f5e9b350270002e23bd7ae2b298e06ada5f4caa1f5233f33969075c5c2798a98dd2fd57646ad906797b9e1ce77194791d3d0b097de31f135ba2dc7323deb5c1adabcf625d97a7bd84cdf96417f05269f4],
    [0xcb26469a1b726d964cc0d3c8f2e486860b7252643b3c974857abc04cc93eca7167138e0cc5cbaa39b4c47daa6ccc5d546d6bfd4171f3ed3f1b0bfe30c22010e3376ec551ba46380cfa25495c7b1299ae7b02409523845fc1b3ccba46a19a4f58dd92c330a

elliptic-shiho

import hashlib

b = 256
q = 2**255 - 19
l = 2**252 + 27742317777372353535851937790883648493

def H(m):
  return hashlib.sha512(m).digest()

def expmod(b,e,m):

chriseth

Having seen @pirapira's sketch of Bamboo ( https://github.com/pirapira/bamboo/ ), which proposed to add better control about the "smart contract program flow", even across calls, I thought that this should certainly be added to Solidity, and actually, it might even be possible now to a certain degree using inline assembly.

The problem is that with many functions in a contract, it is not always clear which can be called at which stage in the contract's lifetime. Certain smart contracts would be easier to understand if written as follows:

srdjan

100+ different js counter apps...

File tree

# build result
/bin

# bootstrap result
/bin/gb
/bin/gb-vendor

# build result
/bin/BINARY_NAME

chriseth

contract PatriciaTree {
    // List of all keys, not necessarily sorted.
    bytes[] keys;
    // Mapping of hash of key to value
    mapping (bytes32 => bytes) values;

    struct Label {
        bytes32 data;
        uint length;
    }