src/lib/hash-decl.h

#ifndef HASH_DECL_H
#define HASH_DECL_H

#define HASH_TABLE_UNION(key_type, value_type) { \
        struct hash_table *_table; \
        key_type _key; \
        key_type *_keyp; \
        const key_type _const_key; \
        value_type _value; \
        value_type *_valuep; \
    }

#define HASH_TABLE_DEFINE_TYPE(name, key_type, value_type) \
    union hash ## __ ## name HASH_TABLE_UNION(key_type, value_type)
#define HASH_TABLE(key_type, value_type) \
    union HASH_TABLE_UNION(key_type, value_type)
#define HASH_TABLE_TYPE(name) \
    union hash ## __ ## name

#endif