Results for “Strings & byte buffers”
Small, practical examples. Search by task or narrow things down below.
Create an independent copy of a byte buffer
C: Allocate the exact byte length and copy only after checking the result.
C✓ Tested
Decode bytes as validated UTF-8
Decode bytes as validated UTF-8 in a complete Rust program using the standard library.
Rust✓ Tested
Decode hexadecimal bytes
C#: FromHexString and ToHexString handle binary data without manually parsing pairs of characters.
C#✓ Tested
Distinguish unset variables from empty strings
Bash Scripts: Omitting the colon tests only whether a variable is unset; including it also treats an empty value as missing.
Bash Scripts✓ Tested
Encode a byte buffer as hexadecimal
C: Format each byte as an unsigned two-digit hexadecimal value.
C✓ Tested
Encode a value as little-endian bytes
Arduino / C: Store the least significant byte first when the protocol requires it.
Arduino / C✓ Tested
Encode an integer as big-endian bytes
Encode an integer as big-endian bytes in a complete Rust program using the standard library.
Rust✓ Tested
Encode and decode Base64 bytes
Java: Convert through UTF-8 explicitly before and after Base64 encoding.
Java✓ Tested
Encode bytes as hexadecimal
Encode bytes as hexadecimal using a complete Go program with explicit sample inputs.
Go✓ Tested
Extract the low and high byte of a value
Arduino / C: lowByte and highByte expose the two bytes of a 16-bit value.
Arduino / C✓ Tested
Find files larger than a byte threshold
Linux Commands: Use the c suffix for exact byte units with GNU find size tests.
Linux Commands✓ Tested
Group strings by their length
Java: Choose a TreeMap supplier when group keys must have deterministic order.
Java✓ Tested