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42 lines
1.6 KiB
42 lines
1.6 KiB
/*
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* Copyright (C) 2009-2011,2013 by Jonathan Naylor G4KLX
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* Copyright (c) 2017 by Thomas A. Early N7TAE
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* Copyright (c) 2021 by Geoffrey Merck F4FXL / KC3FRA
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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 of the License, or
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* (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., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#pragma once
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#include <memory>
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#include <string>
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#include <stdexcept>
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#define string_right(s,l) (s.substr(s.length() - l, l))
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class CStringUtils {
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public:
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template<typename ... Args>
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static std::string string_format( const std::string& format, Args ... args )
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{
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int size_s = std::snprintf( nullptr, 0, format.c_str(), args ... ) + 1; // Extra space for '\0'
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if( size_s <= 0 ){ throw std::runtime_error( "Error during formatting." ); }
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auto size = static_cast<size_t>( size_s );
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auto buf = std::make_unique<char[]>( size );
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std::snprintf( buf.get(), size, format.c_str(), args ... );
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return std::string( buf.get(), buf.get() + size - 1 ); // We don't want the '\0' inside
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}
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};
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