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https://dicksdeathabove.xyz/~mia/psh-fractional
synced 2024-11-09 16:54:18 +00:00
Mia T. Rain
655ab2c2eb
uses 2 deep while loop instead of trying parse leading/trailing zeros like I did in psh-float; the idea is the learn from the mistakes of psh-float and try again, this is far better, but I wish less variables were used
25 lines
911 B
Bash
Executable file
25 lines
911 B
Bash
Executable file
#!/bin/sh
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# add $2 to $1 and return
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[ -z "${1##*.*}" -o -z "${2##*.*}" ] && { # if float # dylanaraps/pure-sh-bible#check-if-a-number-is-a-float
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# modified to check $1 & $2
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f1="${1##*.}"; f2="${2##*.}" # whole is ${1%.$f1} # dot required
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# eq is $1+$2 -- $f1 + $f2 -- then add $1 & $2
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wo="$((${1%.$f1}+${2%.$f2}))" # whole digit, this is preset and not redeclared
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# this is because we may need to carry
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while [ "$f1" ]; do
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while [ "$f2" ]; do
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next2="${f2#?}"; next1="${f1#?}"
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[ "$((${f1%$next1} + ${f2%$next2}))" -gt 9 ] && {
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oo="$o"; [ "$o" ] && {
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: $((oo+=1))
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} || : $((wo+=1))
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o="$((${f1%$next1} + ${f2%$next2}))"; o="${o#?}"; o="$oo$o"; unset oo # unset to save ram
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} || o="$o$((${f1%$next1} + ${f2%$next2}))"
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f2="$next2"; f1="${next1}"
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done
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done
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echo "$wo.${o:-0}"
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} || { # if not just do basic addition
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echo $(($1+$2))
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}
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