nvartolomei

yes 'c=(╱ ╲);printf ${c[RANDOM%2]}'|bash

nvartolomei

#!/usr/bin/env bash

# Check for jdk
if test ! $(which javac)
then
  echo "  x JDK not found. Please install it:"
  echo "    http://goo.gl/7mdf0"
  echo
  echo "    Or check PATH"
  exit

nvartolomei

/**
 * A "Left-leaning Red-Black Tree"
 * 
 * http://www.cs.princeton.edu/~rs/talks/LLRB/LLRB.pdf
 */
public class LLRB<K extends Comparable<K>, V> {

    public static void main(String[] args) {
        LLRB<String, String> llrb = new LLRB<String, String>();
        

nvartolomei

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
Send 1K bytes over 1 Gbps network        10,000   ns    0.01 ms
Read 4K randomly from SSD               150,000   ns    0.15 ms
Read 1 MB sequentially from memory      250,000   ns    0.25 ms
Round trip within same datacenter       500,000   ns    0.5  ms

nvartolomei

#define lambda(return_type, function_body) \
  ({ \
    return_type __fn__ function_body \
    __fn__; \
  })

// Use like this:

int (*max)(int, int) = lambda (int, (int x, int y) { return x > y ? x : y; });