#!/usr/bin/env zsh
# compat: +ash +bash +dash +hush +ksh +mksh +oksh +osh +posh +yash +zsh

# though technically compatible with other shells,
# extra functionality is through zsh's extended arithmetic functions.

hex() { ### @-
    ### perform arithmetic using the shell and display the result as
    ### an unsigned 32-bit integer in hexadecimal.
    ### see also [`arith`](#arith) and [`bin`](#bin).
    ###
    ### ```
    ### $ hex 0x221EA8-0x212020
    ### 0000FE88
    ### ```
    ###
    ### **NOTE:** there also exists a hex(1) program provided by
    ### the *basez* package that i don't use.
    printf "%08X\n" "$(($@))"
}

[ -n "${preload+-}" ] || hex "$@"