Professional scenario conversions
Programmer basics: binary, octal, hex
Binary/octal/hex conversion is not only academic. It directly impacts debugging, memory inspection, and protocol analysis.
Treat radix as part of the interface contract: ambiguous literals in docs and tickets are how production incidents start.
Key takeaways
- Always write 0b/0o/0x prefixes in snippets; never rely on “obvious” base.
- Round-trip A→B→A to validate tools and hand edits.
- Pair hex dumps with endianness notes for wire formats.
- Separate RGBA hex from address hex in code reviews.
How to convert
255 Base 10 = — Base 16
Hex and bytes
Hex aligns naturally with 4-bit groups. Two hex digits map to one byte, making binary inspection readable.
Prefix discipline
Always include clear prefixes like 0b, 0o, 0x in docs and code snippets to avoid parser ambiguity.
Validation strategy
Round-trip conversion (A->B->A) is a quick way to detect mistakes in tooling or manual edits.
Endianness and bit order
When serializing integers to wire formats, confirm whether the protocol uses big-endian or little-endian and document it next to hex dumps.
Bit masks and shifts
Shifts are not the same as multiply in signed languages—verify overflow rules in your language.
Color and pixel packing
RGBA hex values are another hex domain—keep separate from address hex to avoid confusion in reviews.