Results for &#x201C;Containers &amp; compound values&#x201D;

Assign a bit from a Boolean state

Arduino / C: bitWrite accepts a bit position and a zero or nonzero value.

Calculate a CRC-8 over a byte sequence

Arduino / C: This implementation uses polynomial 0x07, initial zero, and no reflection.

Calculate a SHA-256 content digest

Java: Hash UTF-8 bytes and format the result as lowercase hexadecimal.

Calculate a simple packet XOR checksum

Arduino / C: XOR all payload bytes to produce a basic error-detection byte.

C++Ownership & optional values

Capture configuration by value in a callable

C++: A value capture retains the value from lambda creation even if the original variable changes later.

C++✓ Tested

RustErrors & optional values

Chain operations that may return None

Chain operations that may return None in a complete Rust program using the standard library.

Rust✓ Tested

Clear a flag without affecting neighboring bits

Arduino / C: bitClear resets only the selected bit.

Convert bytes to hexadecimal and back

Java: Use HexFormat for a standard-library representation of raw bytes.

Decode a form query parameter

Java: URLDecoder reverses form encoding and treats plus as a space.

Encode a form query parameter

Java: URLEncoder uses application/x-www-form-urlencoded rules, including plus signs for spaces.

Encode a value as little-endian bytes

Arduino / C: Store the least significant byte first when the protocol requires it.

Encode and decode Base64 bytes

Java: Convert through UTF-8 explicitly before and after Base64 encoding.