A header-only C vector database library
github.com35 points by abdimoalim 4 hours ago
35 points by abdimoalim 4 hours ago
As data stores go go this is basically in memory only. The save and load process is manually triggered by the user and the save process isn't crash safe nor does it do any integrity checks.
I also don't think it has any indexes either? So search performance is a function of the number of entries.
Useful for embedded devices? Crashes, disk updates not important for ephemeral process?
In the world of Kubernetes and languages where a one-liner brings in a graph of 1700 dependencies, and oceans of Yaml, it's suddently important for a C thing to be one file rather than two.
C libraries have advertised "header-only" for a long time, it's because there is no package manager/dependency management so you're literally copying all your dependencies into your project.
This is also why everyone implements their own (buggy) linked-list implementations, etc.
And header-only is more efficient to include and build with than header+source.
Exactly; I can't understand this obsession with header-only C "libraries".
Writing new C code in 2026 is already an artisanal statement, so why not got all the way in making it?
Would it work to replace the memory store with mmap?
Why to call it a header? Could be just a source file. Including sources is uncommon, but why not? Solid "amalgamation" builds are a thing too.
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