/usr/lib/gcc-cross/powerpc-linux-gnu/6/plugin/include/hash-set.h is in gcc-6-plugin-dev-powerpc-linux-gnu 6.4.0-17ubuntu1cross1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 | /* A type-safe hash set.
Copyright (C) 2014-2016 Free Software Foundation, Inc.
This file is part of GCC.
GCC is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free
Software Foundation; either version 3, or (at your option) any later
version.
GCC is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with GCC; see the file COPYING3. If not see
<http://www.gnu.org/licenses/>. */
#ifndef hash_set_h
#define hash_set_h
template<typename KeyId, typename Traits = default_hash_traits<KeyId> >
class hash_set
{
public:
typedef typename Traits::value_type Key;
explicit hash_set (size_t n = 13, bool ggc = false CXX_MEM_STAT_INFO)
: m_table (n, ggc, GATHER_STATISTICS, HASH_SET_ORIGIN PASS_MEM_STAT) {}
/* Create a hash_set in gc memory with space for at least n elements. */
static hash_set *
create_ggc (size_t n)
{
hash_set *set = ggc_alloc<hash_set> ();
new (set) hash_set (n, true);
return set;
}
/* If key k isn't already in the map add it to the map, and
return false. Otherwise return true. */
bool add (const Key &k)
{
Key *e = m_table.find_slot_with_hash (k, Traits::hash (k), INSERT);
bool existed = !Traits::is_empty (*e);
if (!existed)
*e = k;
return existed;
}
/* if the passed in key is in the map return its value otherwise NULL. */
bool contains (const Key &k)
{
Key &e = m_table.find_with_hash (k, Traits::hash (k));
return !Traits::is_empty (e);
}
void remove (const Key &k)
{
m_table.remove_elt_with_hash (k, Traits::hash (k));
}
/* Call the call back on each pair of key and value with the passed in
arg. */
template<typename Arg, bool (*f)(const typename Traits::value_type &, Arg)>
void traverse (Arg a) const
{
for (typename hash_table<Traits>::iterator iter = m_table.begin ();
iter != m_table.end (); ++iter)
f (*iter, a);
}
/* Return the number of elements in the set. */
size_t elements () const { return m_table.elements (); }
class iterator
{
public:
explicit iterator (const typename hash_table<Traits>::iterator &iter) :
m_iter (iter) {}
iterator &operator++ ()
{
++m_iter;
return *this;
}
Key
operator* ()
{
return *m_iter;
}
bool
operator != (const iterator &other) const
{
return m_iter != other.m_iter;
}
private:
typename hash_table<Traits>::iterator m_iter;
};
/* Standard iterator retrieval methods. */
iterator begin () const { return iterator (m_table.begin ()); }
iterator end () const { return iterator (m_table.end ()); }
private:
template<typename T, typename U> friend void gt_ggc_mx (hash_set<T, U> *);
template<typename T, typename U> friend void gt_pch_nx (hash_set<T, U> *);
template<typename T, typename U> friend void gt_pch_nx (hash_set<T, U> *, gt_pointer_operator, void *);
hash_table<Traits> m_table;
};
/* ggc marking routines. */
template<typename K, typename H>
static inline void
gt_ggc_mx (hash_set<K, H> *h)
{
gt_ggc_mx (&h->m_table);
}
template<typename K, typename H>
static inline void
gt_pch_nx (hash_set<K, H> *h)
{
gt_pch_nx (&h->m_table);
}
template<typename K, typename H>
static inline void
gt_pch_nx (hash_set<K, H> *h, gt_pointer_operator op, void *cookie)
{
op (&h->m_table.m_entries, cookie);
}
#endif
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