no_std Support

svb supports no_std environments with a global allocator. This covers microcontrollers and embedded targets, WebAssembly modules, and OS-level code such as bootloaders or kernel modules.

Setup

Disable the default std feature and enable alloc:

svb = { version = "0.2", default-features = false, features = ["alloc"] }

All encode and decode APIs are available. The delta and zigzag transforms are also fully available.

SIMD in no_std

Runtime SIMD detection (simd-auto) requires std for is_x86_feature_detected!. In no_std contexts, use a compile-time SIMD flag instead:

# no_std with compile-time NEON (AArch64 embedded target)
svb = { version = "0.2", default-features = false, features = ["alloc", "simd-neon"] }

# no_std with compile-time AVX2
svb = { version = "0.2", default-features = false, features = ["alloc", "simd-avx2"] }