feed-c

Market data feed parsing library in C.

Zero-allocation parsers for exchange feed protocols. Designed for embedding into latency-sensitive ingestion pipelines where GC pauses or allocator contention are unacceptable.

Protocols

• ITCH 5.0 — Nasdaq market data
• OUCH 4.2 — Nasdaq order entry
• (more planned)

Build

make

Produces libfeed.a and a small demo binary bin/feed_demo. Requires a C11 compiler (GCC 11+ or Clang 14+).

Status

Internal component. Reference decoder implementations; production uses per-venue hand-tuned forks.