89 lines
2.8 KiB
C++
89 lines
2.8 KiB
C++
/*
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* Cppcheck - A tool for static C/C++ code analysis
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* Copyright (C) 2007-2010 Daniel Marjamäki and Cppcheck team.
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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 3 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, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef mathlibH
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#define mathlibH
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#include <string>
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#include <sstream>
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/// @addtogroup Core
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/// @{
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/** @brief simple math functions that uses operands stored in std::string. useful when performing math on tokens. */
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class Tokenizer;
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class MathLib
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{
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public:
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// To compile Cppcheck on a compiler that doesn't support "long long",
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// use NOLONGLONG.
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#ifdef NOLONGLONG
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typedef long bigint;
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#else
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typedef long long bigint;
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#endif
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static bigint toLongNumber(const std::string & str);
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static double toDoubleNumber(const std::string & str);
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template<typename T>
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static std::string toString(T d)
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{
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std::ostringstream result;
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result << d;
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std::string strResult(result.str());
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if (strResult == "-0"
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|| strResult == "+0"
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|| strResult == "-0."
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|| strResult == "+0.")
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return std::string("0");
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return result.str();
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}
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static bool isInt(const std::string & str);
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static bool isFloat(const std::string &str);
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static bool isNegative(const std::string &str);
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static std::string add(const std::string & first, const std::string & second);
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static std::string subtract(const std::string & first, const std::string & second);
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static std::string multiply(const std::string & first, const std::string & second);
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static std::string divide(const std::string & first, const std::string & second);
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static std::string calculate(const std::string & first, const std::string & second, char action, const Tokenizer *tokenizer);
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static std::string sin(const std::string & tok);
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static std::string cos(const std::string & tok);
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static std::string tan(const std::string & tok);
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static std::string abs(const std::string & tok);
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static bool isGreater(const std::string & first, const std::string & second);
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static bool isNullValue(const std::string &tok);
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/**
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* Return true if given character is 0,1,2,3,4,5,6 or 7.
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* @param c The character to check
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* @return true if given character is octal digit.
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*/
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static bool isOctalDigit(char c);
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};
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/// @}
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#endif
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