File: base.hh

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// Copyright (C) 2007 Zack Weinberg <zackw@panix.com>
//
// This program is made available under the GNU GPL version 2.0 or
// greater. See the accompanying file COPYING for details.
//
// This program is distributed WITHOUT ANY WARRANTY; without even the
// implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
// PURPOSE.

#ifndef __BASE_HH__
#define __BASE_HH__

// This file contains a small number of inclusions and declarations that
// should be visible to the entire program.  Include it first.

// Configuration directives
#include "config.h"

#define BOOST_DISABLE_THREADS
#define BOOST_SP_DISABLE_THREADS
#define BOOST_MULTI_INDEX_DISABLE_SERIALIZATION

// Undefine this if you do not want to support SQLite versions older
// than 3.3.14.
#define SUPPORT_SQLITE_BEFORE_3003014

#include <iosfwd>
#include <string>  // it would be nice if there were a <stringfwd>

// s32, u64, etc
#include "numeric_vocab.hh"

// this template must be specialized for each type you want to dump
// (or apply MM() to -- see sanity.hh).  there are a few stock dumpers
// in appropriate places.
template <typename T>
void dump(T const &, std::string &)
{
  // the compiler will evaluate this somewhat odd construct (and issue an
  // error) if and only if this base template is instantiated.  we do not
  // use BOOST_STATIC_ASSERT mainly to avoid dragging it in everywhere;
  // also we get better diagnostics this way (the error tells you what is
  // wrong, not just that there's an assertion failure).
  enum dummy { d = (sizeof(struct dump_must_be_specialized_for_this_type)
                    == sizeof(T)) };
}

template <> void dump(std::string const & obj, std::string & out);
template <> void dump(char const * const & obj, std::string & out);
template <> void dump(bool const & obj, std::string & out);
template <> void dump(s32 const & obj, std::string & out);
template <> void dump(u32 const & obj, std::string & out);
template <> void dump(s64 const & obj, std::string & out);
template <> void dump(u64 const & obj, std::string & out);

// NORETURN(void function()); declares a function that will never return
// in the normal fashion. a function that invariably throws an exception
// counts as NORETURN.
#if defined(__GNUC__)
#define NORETURN(x) x __attribute__((noreturn))
#elif defined(_MSC_VER)
#define NORETURN(x) __declspec(noreturn) x
#else
#define NORETURN(x) x
#endif

// SQLite versions before 3.3.14 did not have sqlite_prepare_v2. To support
// those SQLite libraries, we must use the old API.
#ifdef SUPPORT_SQLITE_BEFORE_3003014
#define sqlite3_prepare_v2 sqlite3_prepare
#endif

// i18n goo

#include "gettext.h"

#define _(str) gettext(str)
#define N_(str) gettext_noop(str)

#endif // __BASE_HH__

// Local Variables:
// mode: C++
// fill-column: 76
// c-file-style: "gnu"
// indent-tabs-mode: nil
// End:
// vim: et:sw=2:sts=2:ts=2:cino=>2s,{s,\:s,+s,t0,g0,^-2,e-2,n-2,p2s,(0,=s: