Damon's Blog

The magic you are looking for is in the work you're avoiding.

Gems

2026

January

• 5: Debugging C++ with GDB

  • Compiling in debug mode will then include debug symbols (-g), disable optimisation (-00), and enable assert() by omitting -DNDEBUG.

  • Debugging with LLDB

  • codesign gdb in MacOS

• 4: 超越 lock-free 的是 wait-free

  • 在读操作占主导时，Wait-Free 表现极佳。因为读线程的“协助”行为分散了写线程的竞争压力，而且读操作本身不需要像 CAS 循环那样反复争抢缓存行。

  • 但在写操作占主导时，Lock-Free 反而更快。为什么？因为 Wait-Free 的那些位运算、状态判断、原子交换握手，都是实打实的 CPU 指令开销。而 Lock-Free 在竞争不激烈的时候，就是一个简单的原子加减，极其轻量。

  • Introduction to Wait-free Algorithms in C++ Programming - Daniel Anderson - CppCon 2024

• 3: vcpkg and CMake

  • How CMake, vcpkg, and JSON Work Together: Explained for C++ Developers

  • CLion

    • Vcpkg integration

    • CMake profiles

    • Quick CMake tutorial

    • CMake presets

  • A TL;DR about CMake Presets

• 2: Create Your Own Compiler

  TODO

• 1: Transforming Uniform Random Variables to Normal

  • Central Limit Theorem (CLT) Method (12 Uniforms): Generate Gaussian samples by central limit theorem

  • Inverse Transform Sampling: How to generate Gaussian samples

  • Box-Muller Transform: Box-Muller

  • Beasley-Springer-Moro Algorithm

  • Marsaglia polar method

  Random Numbers Generator

  • linear congruential generator

  Transforming Uniform Random Variables to Normal

  • Box-Muller Transform

  • Beasley-Springer-Moro Algorithm

  • Inverse Transform Method

2025

2024

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