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#pragma once
#include "Storage.hh"
namespace cadabra
{
enum HashFlags : unsigned int
{
HASH_DEFAULT = 0x0,
HASH_IGNORE_TOP_MULTIPLIER = 0x1,
HASH_IGNORE_MULTIPLIER = 0x2,
HASH_IGNORE_PRODUCT_ORDER = 0x4,
HASH_IGNORE_SUM_ORDER = 0x8,
HASH_IGNORE_INDEX_ORDER = 0x10,
HASH_IGNORE_PARENT_REL = 0x20,
HASH_IGNORE_BRACKET_TYPE = 0x40,
HASH_IGNORE_CHILDREN = 0x80,
HASH_IGNORE_NAMES = 0x100,
HASH_IGNORE_INDICES = 0x200,
HASH_IGNORE_CHILD_ORDER = 0x400
};
class Ex_hasher
{
public:
using result_t = size_t;
Ex_hasher();
Ex_hasher(HashFlags flags);
result_t operator () (const Ex& ex) const;
result_t operator () (Ex::iterator it) const;
void set_flags(HashFlags flags);
HashFlags get_flags() const;
void add_flags(HashFlags flags);
void remove_flags(HashFlags flags);
private:
result_t hash(Ex::iterator it, bool toplevel) const;
bool flag_set(HashFlags flag) const;
HashFlags flags;
};
HashFlags operator ~ (HashFlags flags);
HashFlags operator | (HashFlags lhs, HashFlags rhs);
HashFlags operator & (HashFlags lhs, HashFlags rhs);
HashFlags& operator |= (HashFlags& lhs, HashFlags rhs);
HashFlags& operator &= (HashFlags& lhs, HashFlags rhs);
Ex_hasher::result_t hash_ex(Ex::iterator it, HashFlags flags = HASH_DEFAULT);
bool hash_compare(Ex::iterator lhs, Ex::iterator rhs, HashFlags flags = HASH_DEFAULT);
}
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