carlosgaldino

Keybase proof

I hereby claim:

• I am carlosgaldino on github.
• I am carlosgaldino (https://keybase.io/carlosgaldino) on keybase.
• I have a public key whose fingerprint is 761C C1E1 ED5E 9CE0 611D ECA8 24D3 CE8E 2906 1EF5

To claim this, I am signing this object:

carlosgaldino

lengthOf x
  | length x == 0 = "0"
  | otherwise = length x
  
  {--
  lengthOf.hs:3:17:
    Couldn't match expected type `[Char]' with actual type `Int'
    In the return type of a call of `length'
    In the expression: length x
    In an equation for `lengthOf':

carlosgaldino

# Este é um exemplo encontrado na última edição do Programming Ruby do Dave Thomas, página 53.
# testa o método que converte uma string em um array de palavras

def test_empty_string
  assert_equal([], words_from_string(""))
  assert_equal([], words_from_string("     "))
end

def test_single_word
  assert_equal(["cat"], words_from_string("cat"))

carlosgaldino

def flatten(arr)
  out = []

  arr.each do |a|
    if a.is_a?(Array)
      out += flatten(a)
    else
      out << a
    end
  end

carlosgaldino

set fuoptions=maxvert

function ToggleFullScreen()
  if exists("s:old_columns")
    set columns=s:old_columns
    set nofu
    unlet s:old_columns
  else
    let s:old_columns=&columns
    set columns=84 fu

carlosgaldino

** Execute vm/test/runner
Running 1 tasks using 3 parallel threads
1: GN vm/test/runner.cpp
1: CC vm/test/runner.cpp
In file included from vm/test/runner.cpp:3322:
./vm/test/test_pointer.hpp: In member function ‘void TestPointer::test_read_long()’:
./vm/test/test_pointer.hpp:89: error: no matching function for call to ‘rubinius::Pointer::read_long(rubinius::VM*&)’
vm/builtin/ffi_pointer.hpp:62: note: candidates are: rubinius::Integer* rubinius::Pointer::read_long(rubinius::VM*, rubinius::Object*)
./vm/test/test_pointer.hpp: In member function ‘void TestPointer::test_write_long()’:
./vm/test/test_pointer.hpp:97: error: no matching function for call to ‘rubinius::Pointer::read_long(rubinius::VM*&)’

carlosgaldino

Topics: Blue pill x Red pill talk

Agile

• Agile Manifesto
• Scrum
• Extreme Programming

Test Driven Development

• Behavior Driven Development
• Test Driven Development: By Example

carlosgaldino

#include <stdio.h>

int bit_and(int x, int y)
{
    return ~(~x | ~y);
}

int main(int argc, char **argv)
{
    printf("%.8x\n", bit_and(6, 5));

carlosgaldino

#include <stdio.h>

/* Bitwise integer addition */
int plus(int x, int y)
{
    int result = x ^ y;
    int carry = (x & y) << 1;

    if (carry != 0)
        return plus(result, carry);

carlosgaldino

struct Person {
    name: String,
    age: u8
}

fn main() {
    // only works if compiled with `--test` flag.
    // let p = Person::create_with(String::from("Carlos"), 26);
    let p = Person { name: String::from("Carlos"), age: 26 };
    println!("{} {}", p.name, p.age);