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an hour ago

How a 20 year old bug in GTA San Andreas surfaced in Windows 11 24H2

Comments

via cookieplmonster.github.io via jmillikin

Silent’s Blog

How a 20 year old bug in GTA San Andreas surfaced in Windows 11 24H2

After over two decades, players are now forbidden from flying a seaplane, all thanks to undefined code behavior.

17 hours ago

Floating point round trip radix conversion

Comments

via johndcook.com via azhenley

John D. Cook | Applied Mathematics Consulting

Floating point round trip radix conversion

When can you print out a floating point number in base 10 and read it back in exactly? Theorem for this and more general round-trip radix conversion.

2 days ago

Advanced Python Features https://blog.edward-li.com/tech/advanced-python-features/

Edward Li's Blog

14 Advanced Python Features

Python is one of the most widely adopted programming languages in the world. Yet, because of it’s ease and simplicity to just “get something working”, it’s also one of the most underappreciated.
If you search for Top 10 Advanced Python Tricks on Google or…

2 days ago

烂了

2 days ago

Exploiting Undefined Behavior in C/C++ Programs for Optimization: A Study on the Performance Impact

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via web.ist.utl.pt via PuercoPop

3 days ago

英伟达据传与深度求索合作开发中国定制AI芯片全面转向本土供应链应对出口限制

据外媒报道，英伟达因美国特朗普政府最新出口管制无法向中国销售高端H20 AI加速器，计划通过与本土企业深度求索（DeepSeek）合作开发"中国特供"芯片，并完全依赖中国供应链（包括HBM、制程节点及封装设施）。消息称，英伟达CEO黄仁勋在新规出台后紧急访华，拟在华设立研发中心，其芯片设计将深度整合中国大模型计算框架以构建专属生态。尽管华为等竞争对手在算力层面逼近，但英伟达仍掌握CUDA软件栈等核心技术优势。此举被视为规避性能阉割、应对中国市场收入损失（年规模达数十亿美元）的关键转向，但原计划设于中国台湾的海外总部布局是否生变仍存疑。

来源：wccfetch

4 days ago

Things Zig comptime Won't Do

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via matklad.github.io via jamii

matklad.github.io

Things Zig comptime Won't Do

Es el disco de Odín. Tiene un solo lado. En la tierra no hay otra cosa que tenga un solo lado.

4 days ago

教宗方济各于4月21日07:35分去世，享年88岁。
他前一日还会见了美国副总统万斯，并出席复活节巡游。
（美联社）

4 days ago

GCC 16 Adding Support For GNU/Hurd On RISC-V Targets
https://www.phoronix.com/news/GCC-16-RISC-V-GNU-Hurd-Targets

Phoronix

GCC 16 Adding Support For GNU/Hurd On RISC-V Targets

GNU/Hurd has long struggled with hardware support and is still working on its x86_64 support while having a host of various hardware limitations but it also appears they are eager to explore Hurd on RISC-V platforms.

10:00 · Apr 18, 2025 · Fri

https://www.timescale.com/blog/time-series-compression-algorithms-explained

Timescale Blog

Time-series compression algorithms, explained

These algorithms aren't magic – but combined they can save over 90% of storage costs and speed up queries. Here’s how 5 common ones work.

10:57 · Apr 17, 2025 · Thu

P3312: Overload Set Types

目前，如下的代码片段无法编译：

std::vector<float> v = {1, 2, 3, 4};
std::ranges::transform(v, v.begin(), std::sin);

这是因为 std::sin 具有多个重载：

float sin(float);
double sin(double);
long double sin(long double);
template <typename T> double sin(T);

因此在实例化 std::ranges::transform 时类型推导无法得出 std::sin 的类型。

这篇提案建议引入一个全新的 overload-set 类型来解决这个问题。引入这一类型后，表达式 std::sin 即具有 overload-set 类型。overload-set 类型和 closure 类型一样是一个匿名的类型。可以认为 overload-set 类似于一个代理，其内部捕获了在实例化时找到的所有重载的信息，可以使用任意一个重载支持的参数来调用。在上面的例子中，std::ranges::transform 内部在调用传入的 overload-set 对象时会传入一个 float 类型的值，这就相当于调用了接收 float 值的 std::sin 函数重载。

Overload-set 在概念上和 Rust 的 function item type 类似，是纯静态的东西，没有内部状态。每一个对重载函数的使用点都会实例化一个独一无二的 overload-set 类型。

10:33 · Apr 17, 2025 · Thu