Introduction

Table provides one-dimensional curves and two-dimensional maps for ECU calibration, sensor conversion, control maps, and other embedded lookup tasks. The portable implementation is C11, the fixed-storage facade is C++11, and the safe Rust crate owns dynamically sized storage over the same C implementation.

Behaviour

• Axes contain at least one finite, strictly increasing point.
• Integer and float32 axes and cells can be mixed independently.
• Lookup uses float32 linear or bilinear interpolation.
• Finite coordinates outside an axis clamp to its nearest edge.
• One-point axes behave as constants.
• Maps store cells in row-major [y][x] order.
• Failed validation or replacement does not partially modify active data.

Storage models

The C API borrows arrays owned by the caller. Immutable views can refer to flash-resident calibration data, while mutable bindings require writable arrays that remain alive for the binding's lifetime.

The C++ facade owns fixed-size arrays selected through template parameters. The safe Rust crate stores axes and cells in boxed slices so the referenced elements remain stable when an owner moves.

Continue with installation, try the examples, or read the API design contract.