/usr/include/exiv2/version.hpp is in libexiv2-dev 0.22-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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/*
* Copyright (C) 2004-2011 Andreas Huggel <ahuggel@gmx.net>
*
* This program is part of the Exiv2 distribution.
*
* This program 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 2
* of the License, or (at your option) any later version.
*
* This program 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, 5th Floor, Boston, MA 02110-1301 USA.
*/
/*!
@file version.hpp
@brief Precompiler define and a function to test the %Exiv2 version.
References: Similar versioning defines are used in KDE, GTK and other
libraries. See http://apr.apache.org/versioning.html for accompanying
guidelines.
@version $Rev: 2588 $
@author Andreas Huggel (ahu)
<a href="mailto:ahuggel@gmx.net">ahuggel@gmx.net</a>
@date 31-May-06, ahu: created
*/
#ifndef VERSION_HPP_
#define VERSION_HPP_
// *****************************************************************************
// included header files
// + standard includes
#include <string>
/*!
@brief %Exiv2 MAJOR version number of the library used at compile-time.
*/
#define EXIV2_MAJOR_VERSION (0)
/*!
@brief %Exiv2 MINOR version number of the library used at compile-time.
*/
#define EXIV2_MINOR_VERSION (22)
/*!
@brief %Exiv2 PATCH version number of the library used at compile-time.
*/
#define EXIV2_PATCH_VERSION (0)
/*!
@brief Make an integer version number for comparison from a major, minor and
a patch version number.
*/
#define EXIV2_MAKE_VERSION(major,minor,patch) \
(((major) << 16) | ((minor) << 8) | (patch))
/*!
@brief The %Exiv2 version number of the library used at compile-time as
an integer number for easy comparison.
*/
#define EXIV2_VERSION \
EXIV2_MAKE_VERSION(EXIV2_MAJOR_VERSION,EXIV2_MINOR_VERSION,EXIV2_PATCH_VERSION)
/*!
@brief Deprecated version check macro. Do not use.
This macro has flaws and only remains for backward compatibility.
Use EXIV2_TEST_VERSION and testVersion() instead.
*/
#define EXIV2_CHECK_VERSION(major,minor,patch) \
( Exiv2::versionNumber() >= EXIV2_MAKE_VERSION(major,minor,patch) )
/*!
@brief Macro to test the version of the available %Exiv2 library at compile-time.
Return true if it is the same as or newer than the passed-in version.
Versions are denoted using a triplet of integers: \em MAJOR.MINOR.PATCH .
@code
// Don't include the <exiv2/version.hpp> file directly, it is included by
// <exiv2/types.hpp>. Early Exiv2 versions didn't have version.hpp and the macros.
#include <exiv2/types.hpp>
// Make sure an EXIV2_TEST_VERSION macro exists:
#ifdef EXIV2_VERSION
# ifndef EXIV2_TEST_VERSION
# define EXIV2_TEST_VERSION(major,minor,patch) \
( EXIV2_VERSION >= EXIV2_MAKE_VERSION(major,minor,patch) )
# endif
#else
# define EXIV2_TEST_VERSION(major,minor,patch) (false)
#endif
std::cout << "Compiled with Exiv2 version " << EXV_PACKAGE_VERSION << "\n"
<< "Runtime Exiv2 version is " << Exiv2::version() << "\n";
// Test the Exiv2 version available at runtime but compile the if-clause only if
// the compile-time version is at least 0.15. Earlier versions didn't have a
// testVersion() function:
#if EXIV2_TEST_VERSION(0,15,0)
if (Exiv2::testVersion(0,13,0)) {
std::cout << "Available Exiv2 version is equal to or greater than 0.13\n";
}
else {
std::cout << "Installed Exiv2 version is less than 0.13\n";
}
#else
std::cout << "Compile-time Exiv2 version doesn't have Exiv2::testVersion()\n";
#endif
@endcode
*/
#define EXIV2_TEST_VERSION(major,minor,patch) \
( EXIV2_VERSION >= EXIV2_MAKE_VERSION(major,minor,patch) )
// *****************************************************************************
// namespace extensions
namespace Exiv2 {
/*!
@brief Return the version of %Exiv2 available at runtime as an integer.
*/
EXIV2API int versionNumber();
/*!
@brief Return the version of %Exiv2 as hex string of fixed length 6.
*/
EXIV2API std::string versionNumberHexString();
/*!
@brief Return the version of %Exiv2 available at runtime as a string.
*/
EXIV2API const char* version();
/*!
@brief Test the version of the available %Exiv2 library at runtime. Return
true if it is the same as or newer than the passed-in version.
Versions are denoted using a triplet of integers: \em major.minor.patch .
@code
// Don't include the <exiv2/version.hpp> file directly, it is included by
// <exiv2/types.hpp>. Early Exiv2 versions didn't have version.hpp and the macros.
#include <exiv2/types.hpp>
// Make sure an EXIV2_TEST_VERSION macro exists:
#ifdef EXIV2_VERSION
# ifndef EXIV2_TEST_VERSION
# define EXIV2_TEST_VERSION(major,minor,patch) \
( EXIV2_VERSION >= EXIV2_MAKE_VERSION(major,minor,patch) )
# endif
#else
# define EXIV2_TEST_VERSION(major,minor,patch) (false)
#endif
std::cout << "Compiled with Exiv2 version " << EXV_PACKAGE_VERSION << "\n"
<< "Runtime Exiv2 version is " << Exiv2::version() << "\n";
// Test the Exiv2 version available at runtime but compile the if-clause only if
// the compile-time version is at least 0.15. Earlier versions didn't have a
// testVersion() function:
#if EXIV2_TEST_VERSION(0,15,0)
if (Exiv2::testVersion(0,13,0)) {
std::cout << "Available Exiv2 version is equal to or greater than 0.13\n";
}
else {
std::cout << "Installed Exiv2 version is less than 0.13\n";
}
#else
std::cout << "Compile-time Exiv2 version doesn't have Exiv2::testVersion()\n";
#endif
@endcode
*/
EXIV2API bool testVersion(int major, int minor, int patch);
} // namespace Exiv2
#endif // VERSION_HPP_
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