#!/usr/bin/env bash

src_dir=lib/src
allocation_functions=(malloc calloc realloc free)

for function in "${allocation_functions[@]}"; do
  usages=$(grep -n -E "\b${function}\(" -r $src_dir --exclude alloc.c --exclude stdlib.c)
  if [[ -n $usages ]]; then
    printf 'The %s function should not be called directly, but is called here:\n%s\n' "$function" "$usages" >&2
    exit 1
  fi
done