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@aaronryank

aaronryank/c-lambda.bash

Last active Jul 10, 2019
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What would you like to do?
Convert a C function to a lambda via executable strings.
#!/usr/bin/env bash
read -p "Function return type: " val
if [ "$1" != "mini" ]; then
read -p "Function name: " name
fi
read -p "Function argument list: " list
echo "$val $name($list) {" >f.c
echo "Enter code:"
cat >>f.c
echo "}" >>f.c
gcc -Os -c f.c
objcopy -O binary -j .text f.o foo
if [ "$1" = "mini" ]; then
echo -n "(($val(*)($list))\""
od -An -t x1 foo | tr -d '\n' | sed 's/ /\\x/g'
echo "\")(INSERT ARGS HERE);"
else
echo -n "$val (*$name)($list) = \""
od -An -t x1 foo | tr -d '\n' | sed 's/ /\\x/g'
echo \"\;
fi
rm f.c f.o foo
@MostParsingVex

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@MostParsingVex MostParsingVex commented Feb 16, 2018

Suggest replacing references to f.c with /tmp/f$$.c and foo with /tmp/foo$$, etc. so you don't accidentally blow away any important files named f.c and foo

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