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211 lines
7.2 KiB
C++
211 lines
7.2 KiB
C++
// ***************************************************************** -*- C++ -*-
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/*
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* Copyright (C) 2004-2015 Andreas Huggel <ahuggel@gmx.net>
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*
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* This program is part of the Exiv2 distribution.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, 5th Floor, Boston, MA 02110-1301 USA.
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*/
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/*!
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@file version.hpp
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@brief Precompiler define and a function to test the %Exiv2 version.
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References: Similar versioning defines are used in KDE, GTK and other
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libraries. See http://apr.apache.org/versioning.html for accompanying
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guidelines.
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@version $Rev: 3371 $
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@author Andreas Huggel (ahu)
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<a href="mailto:ahuggel@gmx.net">ahuggel@gmx.net</a>
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@date 31-May-06, ahu: created
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*/
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#ifndef VERSION_HPP_
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#define VERSION_HPP_
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// *****************************************************************************
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// included header files
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// + standard includes
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#include <string>
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#include <vector>
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#define CPLUSPLUS11 201103L
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#if __cplusplus >= CPLUSPLUS11
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# include <regex>
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typedef std::vector<std::regex> exv_grep_keys_t ;
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#else
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# if EXV_HAVE_REGEX
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# include <regex.h>
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typedef std::vector<regex_t> exv_grep_keys_t ;
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# else
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struct Exiv2_grep_key_t {
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Exiv2_grep_key_t(std::string pattern,bool bIgnoreCase)
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:pattern_(pattern),bIgnoreCase_(bIgnoreCase) {}
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std::string pattern_;
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bool bIgnoreCase_;
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};
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typedef std::vector<Exiv2_grep_key_t> exv_grep_keys_t ;
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# endif
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#endif
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/*!
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@brief %Exiv2 MAJOR version number of the library used at compile-time.
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*/
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#define EXIV2_MAJOR_VERSION (0)
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/*!
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@brief %Exiv2 MINOR version number of the library used at compile-time.
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*/
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#define EXIV2_MINOR_VERSION (25)
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/*!
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@brief %Exiv2 PATCH version number of the library used at compile-time.
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*/
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#define EXIV2_PATCH_VERSION (0)
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/*!
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@brief Make an integer version number for comparison from a major, minor and
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a patch version number.
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*/
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#define EXIV2_MAKE_VERSION(major,minor,patch) \
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(((major) << 16) | ((minor) << 8) | (patch))
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/*!
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@brief The %Exiv2 version number of the library used at compile-time as
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an integer number for easy comparison.
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*/
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#define EXIV2_VERSION \
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EXIV2_MAKE_VERSION(EXIV2_MAJOR_VERSION,EXIV2_MINOR_VERSION,EXIV2_PATCH_VERSION)
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/*!
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@brief Deprecated version check macro. Do not use.
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This macro has flaws and only remains for backward compatibility.
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Use EXIV2_TEST_VERSION and testVersion() instead.
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*/
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#define EXIV2_CHECK_VERSION(major,minor,patch) \
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( Exiv2::versionNumber() >= EXIV2_MAKE_VERSION(major,minor,patch) )
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/*!
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@brief Macro to test the version of the available %Exiv2 library at compile-time.
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Return true if it is the same as or newer than the passed-in version.
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Versions are denoted using a triplet of integers: \em MAJOR.MINOR.PATCH .
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@code
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// Don't include the <exiv2/version.hpp> file directly, it is included by
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// <exiv2/types.hpp>. Early Exiv2 versions didn't have version.hpp and the macros.
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#include <exiv2/types.hpp>
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// Make sure an EXIV2_TEST_VERSION macro exists:
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#ifdef EXIV2_VERSION
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# ifndef EXIV2_TEST_VERSION
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# define EXIV2_TEST_VERSION(major,minor,patch) \
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( EXIV2_VERSION >= EXIV2_MAKE_VERSION(major,minor,patch) )
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# endif
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#else
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# define EXIV2_TEST_VERSION(major,minor,patch) (false)
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#endif
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std::cout << "Compiled with Exiv2 version " << EXV_PACKAGE_VERSION << "\n"
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<< "Runtime Exiv2 version is " << Exiv2::version() << "\n";
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// Test the Exiv2 version available at runtime but compile the if-clause only if
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// the compile-time version is at least 0.15. Earlier versions didn't have a
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// testVersion() function:
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#if EXIV2_TEST_VERSION(0,15,0)
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if (Exiv2::testVersion(0,13,0)) {
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std::cout << "Available Exiv2 version is equal to or greater than 0.13\n";
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}
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else {
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std::cout << "Installed Exiv2 version is less than 0.13\n";
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}
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#else
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std::cout << "Compile-time Exiv2 version doesn't have Exiv2::testVersion()\n";
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#endif
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@endcode
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*/
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#define EXIV2_TEST_VERSION(major,minor,patch) \
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( EXIV2_VERSION >= EXIV2_MAKE_VERSION(major,minor,patch) )
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// *****************************************************************************
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// namespace extensions
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namespace Exiv2 {
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/*!
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@brief Return the version of %Exiv2 available at runtime as an integer.
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*/
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EXIV2API int versionNumber();
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/*!
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@brief Return the version string Example: "0.25.0" (major.minor.patch)
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*/
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EXIV2API std::string versionString();
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/*!
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@brief Return the version of %Exiv2 as hex string of fixed length 6.
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*/
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EXIV2API std::string versionNumberHexString();
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/*!
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@brief Return the version of %Exiv2 available at runtime as a string.
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*/
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EXIV2API const char* version();
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/*!
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@brief Test the version of the available %Exiv2 library at runtime. Return
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true if it is the same as or newer than the passed-in version.
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Versions are denoted using a triplet of integers: \em major.minor.patch .
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@code
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// Don't include the <exiv2/version.hpp> file directly, it is included by
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// <exiv2/types.hpp>. Early Exiv2 versions didn't have version.hpp and the macros.
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#include <exiv2/types.hpp>
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// Make sure an EXIV2_TEST_VERSION macro exists:
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#ifdef EXIV2_VERSION
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# ifndef EXIV2_TEST_VERSION
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# define EXIV2_TEST_VERSION(major,minor,patch) \
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( EXIV2_VERSION >= EXIV2_MAKE_VERSION(major,minor,patch) )
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# endif
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#else
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# define EXIV2_TEST_VERSION(major,minor,patch) (false)
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#endif
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std::cout << "Compiled with Exiv2 version " << EXV_PACKAGE_VERSION << "\n"
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<< "Runtime Exiv2 version is " << Exiv2::version() << "\n";
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// Test the Exiv2 version available at runtime but compile the if-clause only if
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// the compile-time version is at least 0.15. Earlier versions didn't have a
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// testVersion() function:
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#if EXIV2_TEST_VERSION(0,15,0)
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if (Exiv2::testVersion(0,13,0)) {
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std::cout << "Available Exiv2 version is equal to or greater than 0.13\n";
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}
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else {
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std::cout << "Installed Exiv2 version is less than 0.13\n";
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}
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#else
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std::cout << "Compile-time Exiv2 version doesn't have Exiv2::testVersion()\n";
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#endif
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@endcode
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*/
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EXIV2API bool testVersion(int major, int minor, int patch);
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/*!
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@brief dumpLibraryInfo implements the exiv2 option --version --verbose
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used by exiv2 test suite to inspect libraries loaded at run-time
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*/
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EXIV2API void dumpLibraryInfo(std::ostream& os,const exv_grep_keys_t& keys);
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} // namespace Exiv2
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#endif // VERSION_HPP_
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