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github.com/adamgreig/labrador-ldpc @v1.2.1

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README

Labrador-LDPC

A crate for encoding and decoding a selection of low-density parity check (LDPC) error correcting codes. Currently, the CCSDS 231.1-O-1 TC codes at rate r=1/2 with dimensions k=128, k=256, and k=512, and the CCSDS 131.0-B-2 TM codes at rates r=1/2, r=2/3, and r=4/5 with dimensions k=1024 and k=4096 are supported.

No dependencies, no_std. Designed for both high-performance decoding and resource-constrained embedded scenarios.

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C API

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DecodeFrom (Interface)

Trait for types that the min-sum decoder can operate with. Implemented for `i8`, `i16`, `i32`, `f32`, and `f64`. [5 implementers]

src/decoder.rs

EncodeInto (Interface)

Trait for the types of codeword we can encode into. We implement this for u8 (the standard but slow option), and u32 an [3 …

src/encoder.rs

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Rust96%

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src/decoder.rs25 symbols

capi/src/lib.rs25 symbols

src/codes/mod.rs17 symbols

src/encoder.rs6 symbols

perftest/src/main.rs3 symbols

capi/examples/example.c2 symbols

capi/include/labrador_ldpc.h1 symbols

For agents

$ claude mcp add labrador-ldpc \
  -- python -m otcore.mcp_server <graph>

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github.com/adamgreig/labrador-ldpc @v1.2.1

Labrador-LDPC

Extension points exported contracts — how you extend this code

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