#!/bin/sh

if [ $# -lt 1 ]; then
    cat<<EOF
Usage: ${0##*/} FILE [GCC_OPTS]

Simulate a C interpreter by compiling, executing and removing file in one run.
EOF
    exit
fi

INPUT="$1"

shift
GCC_OPTS="-O0 -Wall -Wextra -Wshadow -pthread -lm"
if [ $# -ne 0 ]; then
    GCC_OPTS="$@"
fi

FILE="$(mktemp)"
echo "==> gcc \"$INPUT\" -o \"$FILE\" $GCC_OPTS"

## Zsh compatibility. We need it otherwise word splitting of parameter GCC_OPTS
## will not work.
STATUS="$(set -o | grep 'shwordsplit' | awk '{print $2}')"
[ "$STATUS" = "off" ] && set -o shwordsplit

gcc "$INPUT" -o "$FILE" $GCC_OPTS

## Restore Zsh previous options. This will not turn off shwordsplit if it
## was on before calling the function.
[ "$STATUS" = "off" ] && set +o shwordsplit

echo "==> $FILE"
"$FILE"
rm "$FILE"