apps/teststringarrays/heap_check.h

/*
 * Copyright 2017, Data61, CSIRO (ABN 41 687 119 230)
 *
 * SPDX-License-Identifier: BSD-2-Clause
 */

#pragma once

#include <assert.h>
#include <stdbool.h>
#include <stdint.h>
#include <stdlib.h>

static inline bool is_heap_pointer(void *p)
{
    extern char *morecore_area;
    extern size_t morecore_size;
    return (uintptr_t)morecore_area <= (uintptr_t)p &&
           (uintptr_t)morecore_area + morecore_size > (uintptr_t)p;
}

static inline void safe_free(void *p)
{
    assert(is_heap_pointer(p));
    free(p);
}