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Daniel Lemire's blog

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Latest posts

Last updated 2 days ago

Chatting with an AI Won’t Make You a Top Programmer

2 days ago

When I was a kid, most people did not know how to...

Parsing JSON at compile time with C++26 static reflection

9 days ago

Suppose that you have a configuration file in JSON. Something like this...

Sovereign

14 days ago

The keyword in politics these days is ‘sovereign’ What few will admit...

How much do amd64 microarchitecture levels help in Go?

17 days ago

Our 64-bit Intel and AMD processors have evolved over decades. When you...

Embodied cognition and agentic AI

26 days ago

Where is your intelligence located? In your brain It is a simplistic...

Parsing IPv6 Addresses Crazily Fast with AVX-512

about 1 month ago

Every machine connected to the Internet has an address called an IP...

Only 17% of all 64-bit Integers are products of two 32-bit integers

about 1 month ago

In software programming, the product between two integers is often computed to...

SIMD-accelerated integer-to-string conversion

about 1 month ago

Converting a 64-bit integer to its decimal string representation is a mundane...

Checking multiplication overflow

about 2 months ago

Suppose that x is a variable of an unsigned type. In C/C++...

Mapping Strings to Float Arrays in Go: How Fast Can We Go?

about 2 months ago

A common pattern in modern software is to map a string key...

House prices and fertility

about 2 months ago

No, rising house prices are not the driver of sharp fertility declines...

You can beat the binary search

about 2 months ago

We sometimes have to look for a value in a sorted array...