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View zlib_infate.c
geef_object_zlib_inflate(ErlNifEnv *env, int argc, const ERL_NIF_TERM argv[])
ErlNifBinary bin;
char chunk[1024];
int error;
z_stream z;
z.zalloc = Z_NULL;
z.zfree = Z_NULL;
z.opaque = Z_NULL;
View pack-delta.hs
readCopyInstruction :: (Integral a) => Word8 -> Get (a, a)
readCopyInstruction opcode = do
-- off -> offset in the source buffer where the copy will start
-- this will read the correct subsequent bytes and shift them based on
-- the set bit
offset <- foldM readIfBitSet 0 $ zip [0x01, 0x02, 0x04, 0x08] [0,8..]
-- bytes to copy
len' <- foldM readIfBitSet 0 $ zip [0x10, 0x20, 0x40] [0,8..]
let len = if coerce len' == 0 then 0x10000 else len'
-- FIXME add guard condition from `patch-delta.c`: if (unsigned_add_overflows(cp_off, cp_size) || ...
redrabbit / recursive_path_iterator.ex
Created Jul 26, 2017
Lazy path iterator in Elixir
View recursive_path_iterator.ex
defmodule RecursivePathIterator do
@moduledoc """
This module provides a simple interface for iterating over filesystem directories.
@doc """
Walks the given `path` recursively.
@spec walk(Path.t) :: Enumerable.t
def walk(path) do
redrabbit /
Created Jun 29, 2017
Rust implementation of a Geometry trait (area, perimeter)
use std::fmt;
trait Geometry: fmt::Display {
fn perimeter(&self) -> f32;
fn area(&self) -> f32;
// Point
redrabbit / mutable_bucket.ex
Last active Jun 29, 2017
Elixir mutable bucket via :ets
View mutable_bucket.ex
defmodule Bucket do
@moduledoc """
A mutable "bucket" implementing the `Access` behaviour.
@behaviour Access
defstruct [:ets]
@type t :: %__MODULE__{ets: term}
redrabbit / absinthe_ecto_resolution_schema.ex
Last active Jul 26, 2018
View absinthe_ecto_resolution_schema.ex
defmodule Absinthe.Ecto.Resolution.Schema do
@moduledoc """
This module provides helper functions to resolve a GraphQL query into `Ecto.Query`.
import Absinthe.Resolution.Helpers
import Ecto.Query
alias Absinthe.Resolution
alias Absinthe.Blueprint.Document.Field

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redrabbit / notification.cpp
Last active Jun 29, 2017
Generic C++ notification dispatcher with boost::signal2
View notification.cpp
#include <map>
#include <queue>
#include <typeinfo>
#include <iostream>
#include <boost/signals2/signal.hpp>
#include <boost/type_traits/is_base_of.hpp>
class notification_interface
redrabbit / opencv_threshold.c
Last active Jun 29, 2017
OpenCV thresholding
View opencv_threshold.c
IplImage* createThresholding( IplImage* source, const CvScalar& min, const CvScalar& max )
const CvSize imgSize = cvSize( source->width, source->height );
IplImage* hsv = cvCreateImage( imgSize, 8, 3 );
cvCvtColor( source, hsv, CV_BGR2HSV );
IplImage* mask = cvCreateImage( imgSize, 8, 1 );
cvInRangeS( hsv, min, max, mask );
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