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/* Implementation of global objects: inline functions.
Copyright (C) 2001-2010 Roberto Bagnara <bagnara@cs.unipr.it>
Copyright (C) 2010-2011 BUGSENG srl (http://bugseng.com)
This file is part of the Parma Polyhedra Library (PPL).
The PPL 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 of the License, or (at your
option) any later version.
The PPL 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 this program; if not, write to the Free Software Foundation,
Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02111-1307, USA.
For the most up-to-date information see the Parma Polyhedra Library
site: http://www.cs.unipr.it/ppl/ . */
#ifndef PPL_globals_inlines_hh
#define PPL_globals_inlines_hh 1
#include <limits>
#include "assert.hh"
namespace Parma_Polyhedra_Library {
inline dimension_type
not_a_dimension() {
return std::numeric_limits<dimension_type>::max();
}
inline const Weightwatch_Traits::Threshold&
Weightwatch_Traits::get() {
return weight;
}
inline bool
Weightwatch_Traits::less_than(const Threshold& a, const Threshold& b) {
return b - a < 1ULL << (sizeof(Threshold)*8-1);
}
inline void
Weightwatch_Traits::from_delta(Threshold& threshold, const Delta& delta) {
threshold = weight + delta;
}
inline
Throwable::~Throwable() {
}
inline void
maybe_abandon() {
#ifndef NDEBUG
if (Implementation::in_assert)
return;
#endif
if (Weightwatch_Traits::check_function)
Weightwatch_Traits::check_function();
if (const Throwable* p = abandon_expensive_computations)
p->throw_me();
}
inline dimension_type
compute_capacity(const dimension_type requested_size,
const dimension_type maximum_size) {
assert(requested_size <= maximum_size);
// Speculation factor 2.
return (requested_size < maximum_size / 2)
? 2*(requested_size + 1)
: maximum_size;
// Speculation factor 1.5.
// return (maximum_size - requested_size > requested_size/2)
// ? requested_size + requested_size/2 + 1
// : maximum_size;
}
template <typename T>
inline typename
Enable_If<Is_Native<T>::value, memory_size_type>::type
external_memory_in_bytes(const T&) {
return 0;
}
template <typename T>
inline typename
Enable_If<Is_Native<T>::value, memory_size_type>::type
total_memory_in_bytes(const T&) {
return sizeof(T);
}
inline memory_size_type
external_memory_in_bytes(const mpz_class& x) {
return x.get_mpz_t()[0]._mp_alloc * PPL_SIZEOF_MP_LIMB_T;
}
inline memory_size_type
total_memory_in_bytes(const mpz_class& x) {
return sizeof(x) + external_memory_in_bytes(x);
}
inline memory_size_type
external_memory_in_bytes(const mpq_class& x) {
return external_memory_in_bytes(x.get_num())
+ external_memory_in_bytes(x.get_den());
}
inline memory_size_type
total_memory_in_bytes(const mpq_class& x) {
return sizeof(x) + external_memory_in_bytes(x);
}
} // namespace Parma_Polyhedra_Library
#endif // !defined(PPL_globals_inlines_hh)
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