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allocator.hpp

// vim:sw=2:ai

/*
 * Copyright (C) 2010 DeNA Co.,Ltd.. All rights reserved.
 * See COPYRIGHT.txt for details.
 */

#ifndef DENA_ALLOCATOR_HPP
#define DENA_ALLOCATOR_HPP

#include <stdlib.h>
#include <string.h>

#if 0
extern "C" {
#include <tlsf.h>
};
#define DENA_MALLOC(x) tlsf_malloc(x)
#define DENA_REALLOC(x, y) tlsf_realloc(x, y)
#define DENA_FREE(x) tlsf_free(x)
#define DENA_NEWCHAR(x) static_cast<char *>(tlsf_malloc(x))
#define DENA_DELETE(x) tlsf_free(x)
typedef std::allocator<int> allocator_type;
#endif

#if 1
#define DENA_MALLOC(x) malloc(x)
#define DENA_REALLOC(x, y) realloc(x, y)
#define DENA_FREE(x) free(x)
#define DENA_NEWCHAR(x) (new char[x])
#define DENA_DELETE(x) (delete [] x)
typedef std::allocator<int> allocator_type;
#endif

#if 1
#define DENA_ALLOCA_ALLOCATE(typ, len) \
      static_cast<typ *>(alloca((len) * sizeof(typ)))
#define DENA_ALLOCA_FREE(x)
#else
#define DENA_ALLOCA_ALLOCATE(typ, len) \
      static_cast<typ *>(malloc((len) * sizeof(typ)))
#define DENA_ALLOCA_FREE(x) free(x)
#endif

namespace dena {

00048 template <typename T> struct auto_alloca_free {
  auto_alloca_free(T *value) : value(value) { }
  ~auto_alloca_free() {
    /* no-op if alloca() is used */
    DENA_ALLOCA_FREE(value);
  }
 private:
  auto_alloca_free(const auto_alloca_free&);
  auto_alloca_free& operator =(const auto_alloca_free&);
 private:
  T *value;
};

};

#endif


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