Code size analysis

pw_bytes: Utilities for manipulating binary data

This page analyzes the code size impact of using components from the pw_bytes module.

Size report: using ByteBuffer vs. manual manipulation

The following report compares the code size of using pw::ByteBuffer for constructing and parsing a simple byte sequence versus manually performing similar operations with std::memcpy and bitwise logic for endianness.

pw::ByteBuffer can offer improved type safety and convenience, potentially at a small code size cost for very simple operations, but can lead to more maintainable and less error-prone code for complex byte manipulations.

Label	Segment	Delta
Using ByteBuilder vs. not using it	FLASH +40 pw::bytes::ReadBytes() -18 main -2 pw::metric::Group::Group() NEW +38 pw::ByteBuilder::ResizeForAppend() NEW +36 pw::ByteBuilder::append() NEW +36 pw::bytes::PutBytes() NEW +14 pw::ByteBuilder::WriteInOrder<>()	+144
	RAM -8 [section .data] +1 __Thumbv6MABSLongThunk_best_effort_wfe_or_timeout DEL -8 pw::bytes::b_array NEW +23 pw::bytes::bb	+8