louisswarren

#include <stdio.h>
#include <stdint.h>
#include <string.h>

#define PRIME ((1ul << 31) - 1)
#define GEN ((1ul << 11) - 1)

unsigned
fastlog(uint64_t x)
{

louisswarren

#include <stdio.h>
#include <stdint.h>
#include <string.h>

#define PRIME ((1ull << 31) - 1)

uint32_t
cycle(uint32_t seed, uint32_t prev)
{
	uint64_t x = prev;

louisswarren

louisswarren

import sys
import pickle
import json

def usage():
    print("Usage:")
    print(f"\t{sys.argv[0]} --tojson [PICKLE FILES]")
    print(f"\t{sys.argv[0]} --topickle [JSON FILES]")

JD = json.JSONDecoder()

louisswarren

import sys

class stdio_redirect:
    def __init__(self, stdin=None, stdout=None, stderr=None):
        self.stdin,  self.sys_stdin   = stdin,  sys.stdin
        self.stdout, self.sys_stdout  = stdout, sys.stdout
        self.stderr, self.sys_stderr  = stderr, sys.stderr

    def __enter__(self):
        sys.stdin  = self.stdin

louisswarren

#include <stdio.h>
#include <stdlib.h>
#include <time.h>

unsigned long long counts[6] = {0};
unsigned long long trials = 0;

void
roll_dice(void)
{

louisswarren

#include <stdio.h>

#define FIRST(N, ...) (N)
#define foreach(X, F, ...) \
	for (init_##F(__VA_ARGS__), X = F(FIRST(__VA_ARGS__));\
	     FIRST(__VA_ARGS__)->_running;\
	     X = F(FIRST(__VA_ARGS__)))

struct count_state {
	int _running;

louisswarren

import numpy as np
from svg import *

compose = lambda f: lambda g: lambda *a, **k: f(g(*a, **k))

PURPLE = '#6a1eb0'
ORANGE = '#ff824a'
BLUE   = '#75c1ff'

VP_WIDTH = 2.0

louisswarren

ffmpeg notes

I often want to do something that I believe is non-trivial in ffmpeg, only to discover that it is actually very simple, if only I had known how to do it. I even end up writing wrappers to do simple things, because I keep forgetting what to do. However, this file is my new solution: simply write my own documentation for things I would occasionally like to do.

louisswarren

#include <stdio.h>
#include <stdint.h>
#include <string.h>
#include <stdlib.h>

#define POOL_NODE_HEADERS struct pool_node *prev, *next

struct pool_node {
	POOL_NODE_HEADERS;
};