Helper: check two pixel values are within ±tolerance per channel.

Helper: compute ns/call = (total_us * 1000) / iters

@brief Generate P9813 flag byte from RGB components @param r Red component (0-255) @param g Green component (0-255) @param b Blue component (0-255) @r

Parsing factory method - uses native parser

Parse @filter block from .ino file. Supports both YAML-style (multi-line) and one-liner syntax. Colon after @filter is optional. Auto-det

Compile-time check: returns true if the string contains a ".." segment. Rejects all of the following: - "foo/../bar" - "../foo" - "foo/.." - ".." Doe

Rescale raw inoise16() output to full 16-bit range [0, 65535] Curries in the global NOISE16_EXTENT_MIN/MAX extents for clean, reusable rescaling. @par

@brief Reset mock state between tests

Run firmware in Docker container Args: elf_path: Path to the firmware ELF file mcu: MCU type (e.g., "atmega3

Start the heartbeat thread.

Verbatim copy of solve_strict_subgamut (post-#2708 — includes hull projection, post-#2748 — includes native topology authority guard).

@brief Reference transpose - converts 16 bytes to 8 uint16_t words Input: 16 bytes, one per lane (lanes 0-15) Output: 8 words representing bits 0-7 a

Helper to verify end frame (all bytes should be 0xFF)

Helper to verify LED RGB16 values with gamma correction

Helper to verify preamble structure @param bytes Captured byte stream @param expected_preamble Expected preamble bytes

Code taken from Ambiq Micro's am_hal_systick.c and converted to inline static for speed @brief Get the current count value in the SYSTICK. This func

Return True if the file *might* contain a flaggable violation. This is the fast path. It may return True for files that ultimately have zero

Check if a value is already a URL (not a shorthand name).

Build a FileContent matching what the runner passes to checkers.

Add a violation for a file.

@brief Get pointer to base CLEDController for linked list traversal

@brief Calculate optimal ring buffer capacity based on LED frame boundaries @param maxLedsPerChannel Maximum LEDs per channel (strip size) @param rese

ceil

@brief Clear the lane's buffer

@brief Create channel data for testing

Free function builders (were static methods on class fl::task)

@brief Get current service interval

* Gets current playback status * @returns {PlaybackStatus}

Get all platform URLs from environment sections. Returns: List of tuples: (section_name, option_name, url)

Helper to check if waveform has significant variation (not all zeros or constant)

3) Handy two-word hasher

Return True if *output* contains the Windows ld.lld permission-denied error. Only matches failures on runner.exe / example_runner.exe — other

@brief Convert RGB to LPD6803 16-bit format (1bbbbbgggggrrrrr) @param r Red component (0-255) @param g Green component (0-255) @param b Blue component

@brief Calculate output bytes per input byte after wave encoding + transpose @return Output bytes per input byte

Parse the contents of a `.lnk` file into a `fl::url`. Format: one URL per line. Leading/trailing whitespace on each line is ignored. Blank lines and

Poll a condition with sleep between attempts. Loopback TCP is fast but accept/recv may not be ready immediately, especially under heavy load.

Print cache miss/invalidation message in yellow with warning (global function).

Read a big-endian uint32 from a byte span at offset. Returns 0 and sets ok=false if out of bounds.

maxSeconds: limit processing to first N seconds (0 = all)

Run makeFullBandMix at a given ratio for N frames.

Run a cache check script and return (needs_run, output).