sizeof.sh

#! /bin/sh

CC=${CC-gcc}
lang=${lang-c}
incfs=()
structs=()

for i; do
  if [ -f "$i" ] ; then
    incfs+=("$i")
  elif [ "$i" != "${i%.h}" -o "$i" != "${i%.hpp}" -o "$i" != "${i#<}" ] ; then
    incfs+=("$i")
  else
    structs+=("$i")
  fi
done

tmpf=$(mktemp -t /tmp)

(
  echo "#include <stdio.h>"
  for((l=0;l<${#incfs[@]}; ++l)); do
    if [ "${incfs[$l]}" != "${incfs[$l]#<}" ] ; then
      echo "#include ${incfs[$l]}"
    else
      echo "#include \"${incfs[$l]}\""
    fi
  done
  echo "int main(int argc, char **argv){"
  for((l=0;l<${#structs[@]}; ++l)); do
    echo "printf(\"sizeof(${structs[$l]})=%lu\\\\n\", sizeof(${structs[$l]}));"
  done
  echo "return 0;}"
) > $tmpf
${CC} -x $lang $tmpf -o ${tmpf}.exe
[ -x ${tmpf}.exe ] && ${tmpf}.exe
rm -f $tmpf ${tmpf}.exe