krscott

C Snippets

C standard version detection

#ifndef __STDC_VERSION__
#error "C90"
#elif __STDC_VERSION__ == 202000L
#error "C23"
#elif __STDC_VERSION__ == 201710L

krscott

#!/usr/bin/env bash
set -euo pipefail
shopt -s failglob

# Bash snippets

# Change pwd to this script's dir
cd "$(dirname "$(realpath "${BASH_SOURCE[0]}")")"

# CLI Options

krscott

{
  inputs = {
    flake-utils.url = "github:numtide/flake-utils";

    nix-github-actions = {
      url = "github:nix-community/nix-github-actions";
      inputs.nixpkgs.follows = "nixpkgs";
    };
  };

krscott

Nix Snippets

Pitfalls

clang-tools must come before clang

CLI

# Show tree of nix dependencies

krscott

How to Program Good

Random thoughts and opinions that I think might be good programming advice. Maybe. Grain of salt.

Required Viewing

• Becoming an N+2 programmer
• Andrew Kelley Practical Data Oriented Design (DoD)

Types and Kinds

krscott

#!/usr/bin/env bash

#
# NixOS "Erase Your Darlings" ZFS install script based on:
#
#   - Original install script by mx00s (https://gist.github.com/mx00s/ea2462a3fe6fdaa65692fe7ee824de3e)
#   - Erase Your Darlings (https://grahamc.com/blog/erase-your-darlings)
#   - ZFS Datasets for NixOS (https://grahamc.com/blog/nixos-on-zfs)
#   - NixOS Manual (https://nixos.org/nixos/manual/)
#

krscott

[alias]
	lol = log --oneline --graph --decorate --date-order
	lola = log --oneline --graph --decorate --date-order --all
	s = status -s
	ka = !gitk --all --date-order
	k = !gitk --date-order
	pull-sm = !git pull && git submodule update --recursive && git lfs fetch --all && git lfs pull
	smu = !git submodule update --init --recursive && git lfs fetch --all && git lfs pull
	smr = !git reset --hard --recurse-submodule && git submodule sync --recursive && git submodule update --init --force --recursive && git submodule foreach --recursive git clean -ffdx && git lfs fetch --all && git lfs pull

krscott

# Disable "unknown" errors and missing type stubs...

# pyright: reportUnknownMemberType=false
# pyright: reportUnknownVariableType=false
# pyright: reportUnknownArgumentType=false
# pyright: reportMissingTypeStubs=false

# ...or, alternatively, only suppress individual objects (but disables intellisense)

from typing import Any

krscott

from __future__ import annotations
from dataclasses import dataclass, asdict, is_dataclass
from typing import Any
from typing_extensions import dataclass_transform  # pip install typing-extensions
import dacite  # pip install dacite
import json

@dataclass_transform(kw_only_default=True)
class SerdeJson:
    def __init_subclass__(cls):

krscott

Math

• .s - Show the stack
• +, -, *, mod - Math operators
• /mod - performs both / and mod

Stack manipulation

• drop and 2drop - drop a stack item (once / twice)
• dup - duplicate a stack item
• rot - rotate the stack