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96 lines
2.6 KiB
C
96 lines
2.6 KiB
C
/*
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* int64.h
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*
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* Home page of code is: http://smartmontools.sourceforge.net
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*
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* Copyright (C) 2002-8 Bruce Allen <smartmontools-support@lists.sourceforge.net>
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* Copyright (C) 2004-8 Christian Franke
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2, or (at your option)
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* any later version.
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*
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* You should have received a copy of the GNU General Public License
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* (for example COPYING); if not, write to the Free
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* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*
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*/
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#ifndef INT64_H_
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#define INT64_H_
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#define INT64_H_CVSID "$Id: int64.h,v 1.17 2008/03/04 22:09:47 ballen4705 Exp $\n"
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// 64 bit integer typedefs and format strings
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#ifdef HAVE_INTTYPES_H
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// The ISO C99 standard specifies that in C++ implementations the PRI* macros
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// from <inttypes.h> should only be defined if explicitly requested
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#define __STDC_FORMAT_MACROS 1
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#include <inttypes.h> // PRId64, PRIu64, PRIx64 (also includes <stdint.h>)
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#else
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#ifdef HAVE_STDINT_H
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#include <stdint.h> // int64_t, uint64_t (usually included above)
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#else
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#ifdef HAVE_SYS_INTTYPES_H
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#include <sys/inttypes.h>
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#else
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#ifdef HAVE_SYS_INT_TYPES_H
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#include <sys/int_types.h>
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#else
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#if defined(_WIN32) && defined(_MSC_VER)
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// for MSVC 6.0
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typedef __int64 int64_t;
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typedef unsigned __int64 uint64_t;
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#else
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// for systems with above includes missing (like ix86-pc-linux-gnulibc1),
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// default to GCC if types are undefined in types.h
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#include <sys/types.h>
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#ifndef HAVE_INT64_T
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typedef long long int64_t;
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#endif
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#ifndef HAVE_UINT64_T
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typedef unsigned long long uint64_t;
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#endif
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#endif // _WIN32 && _MSC_VER
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#endif // HAVE_SYS_INT_TYPES_H
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#endif // HAVE_SYS_INTTYPES_H
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#endif // HAVE_STDINT_H
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#endif // HAVE_INTTYPES_H
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#ifdef _WIN32
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// for MSVCRT.DLL (used by both MSVC 6.0 and MinGW)
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#define PRId64 "I64d"
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#define PRIu64 "I64u"
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#define PRIx64 "I64x"
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#endif // _WIN32
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// If macros not defined in inttypes.h, fix here. Default is GCC
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// style
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#ifndef PRId64
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#define PRId64 "lld"
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#endif // ndef PRId64
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#ifndef PRIu64
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#define PRIu64 "llu"
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#endif // ndef PRIu64
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#ifndef PRIx64
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#define PRIx64 "llx"
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#endif // ndef PRIx64
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#if defined(_WIN32) && defined(_MSC_VER)
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// for MSVC 6.0: "unsigned __int64 -> double" conversion not implemented (why?-)
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__inline double uint64_to_double(uint64_t ull) {
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return ((int64_t)ull >= 0 ? (double)(int64_t)ull :
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((double)(int64_t)(ull - 9223372036854775808UI64)) + 9223372036854775808.0);
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}
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#else
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#define uint64_to_double(ull) ((double)(ull))
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#endif // _WIN32 && _MSC_VER
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#endif // INT64_H
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