rc/sh/sum

#!/usr/bin/env sh
# YES_ZSH
# YES_BASH
# YES_DASH

sum() { ### @-
    local sum=0
    for i; do
        : $((sum+=i))
    done
    echo "$sum"
}

[ "${SOURCING:-0}" -gt 0 ] || sum "$@"
overhaul 2021-07-29 00:37:35 -07:00			`#!/usr/bin/env sh`
			`# YES_ZSH`
first pass over sh: improve compatibility, fix stuff 2021-07-29 05:44:12 -07:00			`# YES_BASH`
			`# YES_DASH`
overhaul 2021-07-29 00:37:35 -07:00
add empty docstrings for most of the remaining functions 2021-07-30 19:41:16 -07:00			`sum() { ### @-`
overhaul 2021-07-29 00:37:35 -07:00			`local sum=0`
			`for i; do`
use in-place arithmetic where applicable 2021-07-29 10:40:15 -07:00			`: $((sum+=i))`
overhaul 2021-07-29 00:37:35 -07:00			`done`
			`echo "$sum"`
			`}`

			`[ "${SOURCING:-0}" -gt 0 ] \|\| sum "$@"`