Jordan Delong
363d1bb20f
This change is mostly for FB internal organizational reasons. Building is not effected beyond the fact that the target now lands in hphp/hhvm/hhvm rather than src/hhvm/hhvm.
65 linhas
2.0 KiB
C++
65 linhas
2.0 KiB
C++
/*
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+----------------------------------------------------------------------+
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| HipHop for PHP |
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+----------------------------------------------------------------------+
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| Copyright (c) 2010- Facebook, Inc. (http://www.facebook.com) |
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+----------------------------------------------------------------------+
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| This source file is subject to version 3.01 of the PHP license, |
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| that is bundled with this package in the file LICENSE, and is |
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| available through the world-wide-web at the following url: |
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| http://www.php.net/license/3_01.txt |
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| If you did not receive a copy of the PHP license and are unable to |
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| obtain it through the world-wide-web, please send a note to |
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| license@php.net so we can mail you a copy immediately. |
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+----------------------------------------------------------------------+
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*/
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#ifndef incl_VM_VERIFIER_UTIL_H_
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#define incl_VM_VERIFIER_UTIL_H_
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#include <cstddef> // for size_t
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#include <vector>
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#include <stdint.h>
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#include <boost/iterator/iterator_traits.hpp>
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#include "util/assertions.h"
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#include "util/arena.h"
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namespace HPHP {
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namespace VM {
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namespace Verifier {
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/**
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* Fixed-sized, arena-based bitset class (size determined on allocation)
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*/
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class Bits {
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static const int BPW = 8 * sizeof(uintptr_t); // bits per word
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public:
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Bits(Arena& arena, int bit_cap);
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~Bits() { /* words was arena-allocated */ }
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public:
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void set(int i) {
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word(i) |= mask(i);
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}
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bool get(int i) {
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return (word(i) & mask(i)) != 0;
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}
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private:
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uintptr_t& word(int i) { return m_words[i / BPW]; }
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static uintptr_t mask(int i) { return uintptr_t(1) << (i % BPW); }
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private:
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uintptr_t* m_words;
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};
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/**
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* Return true if container c contains e, otherwise false.
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*/
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template<class C, class T>
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inline bool contains(const C &c, T e) {
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return c.find(e) != c.end();
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}
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}}} // namespace HPHP::VM::Verifier
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#endif // incl_VM_VERIFIER_UTIL_H
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