imaami

override BIN := test

override SRC := test.c msg.c
override OBJ := $(SRC:%=%.o)
override DEP := $(SRC:%=%.d)

CFLAGS := -O2 -march=native -mtune=native -flto

$(BIN): $(OBJ)
	$(CC) $(CFLAGS) -o $@ $^

oconnor663

#include <errno.h>
#include <stdio.h>

// We want a function that creates a couple files. Here's the naive approach:

int hardcoded_cleanup(const char *path1, const char *path2) {
  FILE *file1 = fopen(path1, "w");
  if (file1 == NULL) {
    return errno;
  }

noxasaxon

Learning Rust

Getting Started + Installation | Cheat Sheet

Table of Contents

1. How Do I Start Learning Rust?!
2. Ok, I Think I Know The Basics But How Do I Get Better?!
3. Rustlang Tooling
4. Helpful References Throughout Your Journey
5. The Rust Community
6. Recommended (but not free) Books & Courses

tgodfrey0

Rust Cheat Sheet

Variables & Mutability

Variables are immutable by default. This makes Rust safer and makes concurrency easier.
Immutable means once a value is bound to that variable, it cannot be changed.
For example:

fn main() {
 let x = 5;

s9w

Potential issue with C++20's initialization change

C++20 takes yet another swing at its infamous initialization rules. The players involved this time are Aggregate initialization (type a{1, 2, 3}) and direct initialization (type a(1, 2, 3)). A common pitfall with aggregate init is:

std::vector<int> vec0(5, 9); // 9, 9, 9, 9, 9
std::vector<int> vec1{5, 9}; // 5, 9

So if you don't know what you're doing, {} is potentially dangerous to use with types that might have both "real" constructors and such with std::initializer_list. If you had your head in the sand for 10 11 years and always used () then you never were in danger.

chadbrewbaker

Daniel Lemire https://lemire.me/en/

Experimental vs asymptotic software engineering, Ullman's essay

Emery Berger

John Reghr

Denis' Book

noseratio

# Clear all Android packages and user data via ADB, by @noseratio
# Run: powershell -f adb-clear-packages.ps1
# To get ADB: https://community.chocolatey.org/packages/adb
#
# Q: Why not a factory reset? 
# A: https://www.reddit.com/r/Android/comments/naetg8/a_quick_powershell_script_for_clearing_user_data/gxtaswl?context=3

$confirmation = Read-Host "This will clear all packages data and user files. Are you sure you want to proceed? (y|n)"
if ($confirmation -ne 'y') {
  return

rr-codes

#include <array>
#include <iostream>

template<typename ...Args>
constexpr std::size_t ARG_SIZE() { return sizeof...(Args) + 1; }

template<typename From, typename To>
concept SameAs = std::is_same_v<From, To>;

template<std::size_t N, typename T, SameAs<T>... Ts>

pervognsen

// x64 encoding

enum Reg {
    RAX, RCX, RDX, RBX, RSP, RBP, RSI, RDI,
    R8,  R9,  R10, R11, R12, R13, R14, R15,
};

enum XmmReg {
    XMM0, XMM1, XMM2,  XMM3,  XMM4,  XMM5,  XMM6,  XMM7,
    XMM8, XMM9, XMM10, XMM11, XMM12, XMM13, XMM14, XMM15,

dreum

import Data.Maybe

fizzBuzz n =
	let 
		base divisor s =
			if (n `mod` divisor) == 0
				then Just s
				else Nothing
		maybeFizz = base 3 "Fizz"
		maybeBuzz = base 5 "Buzz"