Fix multiply definitions in the library. Should fix issue #12.

CMakeLists.txt

@@ -1,7 +1,7 @@
 
 cmake_minimum_required( VERSION 3.19 )
 
-set( ARGS_VERSION "6.3.1" )
+set( ARGS_VERSION "6.3.2" )
 
 option( BUILD_EXAMPLES "Build examples? Default ON." ON )
 option( BUILD_TESTS "Build tests? Default ON." ON )

args-parser/cmd_line.hpp

@@ -76,7 +76,8 @@ static inline ContextInternal
 //
 
 //! \return Prepared for priniting string of correct names.
-String formatCorrectNamesString( const StringList & names )
+static inline String
+formatCorrectNamesString( const StringList & names )
 {
 	if( !names.empty() )
 	{

args-parser/command.hpp

@@ -167,7 +167,7 @@ class Command
 		else if( !m_defaultValues.empty() )
 			return m_defaultValues.front();
 		else
-			return m_dummyEmptyString;
+			return details::DummyString<>::c_string;
 	}
 
 	//! \return All values for this argument.
@@ -185,7 +185,7 @@ class Command
 		if( !m_defaultValues.empty() )
 			return m_defaultValues.front();
 		else
-			return m_dummyEmptyString;
+			return details::DummyString<>::c_string;
 	}
 
 	//! Set default value. \note Value will be pushed back to the list

args-parser/group_iface.hpp

@@ -36,6 +36,7 @@
 #include "utils.hpp"
 #include "exceptions.hpp"
 #include "types.hpp"
+#include "utils.hpp"
 
 // C++ include.
 #include <vector>
@@ -58,10 +59,6 @@ class Command;
 class GroupIface
 	:	public ArgIface
 {
-public:
-	//! Dummy empty string.
-	static const String m_dummyEmptyString;
-
 public:
 	//! Smart pointer to the argument.
 	using ArgPtr = std::unique_ptr< ArgIface, details::Deleter< ArgIface > >;
@@ -143,31 +140,31 @@ class GroupIface
 	//! \return Flag.
 	const String & flag() const override
 	{
-		return m_dummyEmptyString;
+		return details::DummyString<>::c_string;
 	}
 
 	//! \return Argument name.
 	const String & argumentName() const override
 	{
-		return m_dummyEmptyString;
+		return details::DummyString<>::c_string;
 	}
 
 	//! \return Value specifier.
 	const String & valueSpecifier() const override
 	{
-		return m_dummyEmptyString;
+		return details::DummyString<>::c_string;
 	}
 
 	//! \return Description of the argument.
 	const String & description() const override
 	{
-		return m_dummyEmptyString;
+		return details::DummyString<>::c_string;
 	}
 
 	//! \return Long description of the argument.
 	const String & longDescription() const override
 	{
-		return m_dummyEmptyString;
+		return details::DummyString<>::c_string;
 	}
 
 	//! Clear state of the argument.
@@ -286,8 +283,6 @@ class GroupIface
 	bool m_required;
 }; // class GroupIface
 
-const String GroupIface::m_dummyEmptyString;
-
 } /* namespace Args */
 
 #endif // ARGS__GROUP_IFACE_HPP__INCLUDED

args-parser/help.hpp

@@ -62,7 +62,7 @@ namespace Args {
 		extern std::stringstream g_argsOutStream;
 	#endif
 #else
-	OutStreamType & g_argsOutStream = outStream();
+	static OutStreamType & g_argsOutStream = outStream();
 #endif // ARGS_TESTING
 
 

args-parser/multi_arg.hpp

@@ -1,31 +1,31 @@
 
-/*!
-	\file
-
-	\author Igor Mironchik (igor.mironchik at gmail dot com).
-
-	Copyright (c) 2013-2020 Igor Mironchik
-
-	Permission is hereby granted, free of charge, to any person
-	obtaining a copy of this software and associated documentation
-	files (the "Software"), to deal in the Software without
-	restriction, including without limitation the rights to use,
-	copy, modify, merge, publish, distribute, sublicense, and/or sell
-	copies of the Software, and to permit persons to whom the
-	Software is furnished to do so, subject to the following
-	conditions:
-
-	The above copyright notice and this permission notice shall be
-	included in all copies or substantial portions of the Software.
-
-	THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
-	EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
-	OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
-	NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
-	HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
-	WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
-	FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
-	OTHER DEALINGS IN THE SOFTWARE.
+/*!
+	\file
+
+	\author Igor Mironchik (igor.mironchik at gmail dot com).
+
+	Copyright (c) 2013-2020 Igor Mironchik
+
+	Permission is hereby granted, free of charge, to any person
+	obtaining a copy of this software and associated documentation
+	files (the "Software"), to deal in the Software without
+	restriction, including without limitation the rights to use,
+	copy, modify, merge, publish, distribute, sublicense, and/or sell
+	copies of the Software, and to permit persons to whom the
+	Software is furnished to do so, subject to the following
+	conditions:
+
+	The above copyright notice and this permission notice shall be
+	included in all copies or substantial portions of the Software.
+
+	THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+	EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+	OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+	NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+	HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+	WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+	FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+	OTHER DEALINGS IN THE SOFTWARE.
 */
 
 #ifndef ARGS__MULTI_ARG_HPP__INCLUDED
@@ -118,7 +118,7 @@ class MultiArg
 		if( !m_defaultValues.empty() )
 			return m_defaultValues.front();
 		else
-			return m_emptyString;
+			return details::DummyString<>::c_string;
 	}
 
 	//! Set default value. \note Value will be pushed back to the list
@@ -161,9 +161,6 @@ class MultiArg
 private:
 	DISABLE_COPY( MultiArg )
 
-	//! Dummy empty string.
-	static const String m_emptyString;
-
 	//! Values of this argument.
 	StringList m_values;
 	//! Counter.
@@ -172,8 +169,6 @@ class MultiArg
 	StringList m_defaultValues;
 }; // class MultiArg
 
-const String MultiArg::m_emptyString;
-
 
 //
 // MultiArg
@@ -216,7 +211,7 @@ MultiArg::value() const
 	else if( !m_defaultValues.empty() )
 		return m_defaultValues.front();
 	else
-		return m_emptyString;
+		return details::DummyString<>::c_string;
 }
 
 inline void

args-parser/utils.hpp

@@ -157,7 +157,8 @@ isCorrectName( const String & name )
 //
 
 //! \return Is the given name a misspelling of correct name.
-bool isMisspelledName( const String & misspelled,
+static inline bool
+isMisspelledName( const String & misspelled,
 	const String & correct )
 {
 	if( !misspelled.empty() && !correct.empty() )
@@ -174,6 +175,14 @@ bool isMisspelledName( const String & misspelled,
 		return false;
 }
 
+template< typename T = void >
+struct DummyString {
+	static const String c_string;
+};
+
+template< typename T >
+const String DummyString< T >::c_string;
+
 } /* namespace details */
 
 } /* namespace Args */

tests/auto/CMakeLists.txt

@@ -11,3 +11,4 @@ add_subdirectory( help )
 add_subdirectory( api )
 add_subdirectory( exceptions )
 add_subdirectory( stuff )
+add_subdirectory( build )

tests/auto/build/CMakeLists.txt

@@ -0,0 +1,9 @@
+
+project( test.build )
+
+set( SRC main.cpp setup.cpp setup.hpp )
+
+include_directories( ${CMAKE_CURRENT_SOURCE_DIR}
+	${CMAKE_CURRENT_SOURCE_DIR}/../../.. )
+
+add_executable( test.build ${SRC} )

tests/auto/build/main.cpp

@@ -0,0 +1,42 @@
+
+/*!
+	\file
+
+	\author Igor Mironchik (igor.mironchik at gmail dot com).
+
+	Copyright (c) 2022 Igor Mironchik
+
+	Permission is hereby granted, free of charge, to any person
+	obtaining a copy of this software and associated documentation
+	files (the "Software"), to deal in the Software without
+	restriction, including without limitation the rights to use,
+	copy, modify, merge, publish, distribute, sublicense, and/or sell
+	copies of the Software, and to permit persons to whom the
+	Software is furnished to do so, subject to the following
+	conditions:
+
+	The above copyright notice and this permission notice shall be
+	included in all copies or substantial portions of the Software.
+
+	THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+	EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+	OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+	NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+	HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+	WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+	FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+	OTHER DEALINGS IN THE SOFTWARE.
+*/
+
+#include <args-parser/all.hpp>
+
+#include "setup.hpp"
+
+int main( int argc, char * argv[] )
+{
+	Args::CmdLine cmd{ argc, argv };
+
+	SetupCMD( cmd );
+
+	return 0;
+}

tests/auto/build/setup.cpp

@@ -0,0 +1,38 @@
+
+/*!
+	\file
+
+	\author Igor Mironchik (igor.mironchik at gmail dot com).
+
+	Copyright (c) 2022 Igor Mironchik
+
+	Permission is hereby granted, free of charge, to any person
+	obtaining a copy of this software and associated documentation
+	files (the "Software"), to deal in the Software without
+	restriction, including without limitation the rights to use,
+	copy, modify, merge, publish, distribute, sublicense, and/or sell
+	copies of the Software, and to permit persons to whom the
+	Software is furnished to do so, subject to the following
+	conditions:
+
+	The above copyright notice and this permission notice shall be
+	included in all copies or substantial portions of the Software.
+
+	THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+	EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+	OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+	NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+	HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+	WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+	FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+	OTHER DEALINGS IN THE SOFTWARE.
+*/
+
+#include "setup.hpp"
+
+void SetupCMD( Args::CmdLine & cmd )
+{
+	cmd.addArgWithNameOnly( "foo", true, true, "bar" );
+
+	cmd.parse();
+}

tests/auto/build/setup.hpp

@@ -0,0 +1,35 @@
+
+/*!
+	\file
+
+	\author Igor Mironchik (igor.mironchik at gmail dot com).
+
+	Copyright (c) 2022 Igor Mironchik
+
+	Permission is hereby granted, free of charge, to any person
+	obtaining a copy of this software and associated documentation
+	files (the "Software"), to deal in the Software without
+	restriction, including without limitation the rights to use,
+	copy, modify, merge, publish, distribute, sublicense, and/or sell
+	copies of the Software, and to permit persons to whom the
+	Software is furnished to do so, subject to the following
+	conditions:
+
+	The above copyright notice and this permission notice shall be
+	included in all copies or substantial portions of the Software.
+
+	THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+	EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+	OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+	NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+	HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+	WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+	FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+	OTHER DEALINGS IN THE SOFTWARE.
+*/
+
+#pragma once
+
+#include <args-parser/all.hpp>
+
+void SetupCMD( Args::CmdLine & cmd );