physacco

#include <stdio.h>
#include <termios.h>

int getch(void) {
  int ch;
  struct termios oldt;
  struct termios newt;
  
  tcgetattr(STDIN_FILENO, &oldt); /*store old settings */
  newt = oldt; /* copy old settings to new settings */

physacco

#include <iostream>
#include <limits>

template <typename T>
void test_limits() {
    T min = std::numeric_limits<T>::min();
    T max = std::numeric_limits<T>::max();
    std::cout << "min: " << min << std::endl;
    std::cout << "max: " << max << std::endl;
}

physacco

Erlang references are unique indentifiers. They are commonly used to
identify timers, rpc calls, etc.

    make_ref() -> ref()

    Returns an almost unique reference.

    The returned reference will re-occur after approximately 2^82 calls;

physacco

import std.stdio;

long factorial(int n) {
    long fac = 1;
    foreach (i; 1..n+1) {
        fac *= i;
    }
    return fac;
}

physacco

x=1;1.upto(gets.to_i){|i|x*=i};p x

physacco

把一个git仓库的origin搬到另一台服务器上

1. 在旧服务器上删除这个仓库

   rm -r /home/$USER/repo/$REPO

2. 在新服务器上创建一个同名的仓库

   cd /home/$USER/repo git init --bare $REPO

physacco

#!/bin/bash

set -e

PREFIX="$HOME/local/ruby/1.9.3"

RUBY_DIST_URL="ftp://ftp.ruby-lang.org/pub/ruby/1.9/ruby-1.9.3-p392.tar.gz"
RUBY_DIST_PKG=`basename $RUBY_DIST_URL`
RUBY_DIST_DIR=`basename $RUBY_DIST_PKG .tar.gz`

physacco

#!/bin/bash

script_dir()
{
  local SCRIPT_PATH=${BASH_SOURCE[0]}
  while [ -L "${SCRIPT_PATH}" ]; do
    SCRIPT_PATH=`readlink "$SCRIPT_PATH"`
  done

  local SCRIPT_DIR=`dirname "${SCRIPT_PATH}"`

physacco

def parse_config_stream(str_or_file):
    _myglobals, mylocals = {}, {}
    exec str_or_file in _myglobals, mylocals
    return mylocals

def parse_config_file(filename):
    _myglobals, mylocals = {}, {}
    with open(filename) as f:
        exec f in _myglobals, mylocals

physacco

$ gem sources
*** CURRENT SOURCES ***

http://rubygems.org/
http://gems.github.com/

$ gem sources --remove http://rubygems.org/
http://rubygems.org/ removed from sources

$ gem sources --add http://ruby.taobao.org/