cppcheck/lib/mathlib.h

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/*
* Cppcheck - A tool for static C/C++ code analysis
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* Copyright (C) 2007-2012 Daniel Marjamäki and Cppcheck team.
*
* 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 3 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, see <http://www.gnu.org/licenses/>.
*/
#ifndef mathlibH
#define mathlibH
#include <string>
#include <sstream>
#include "config.h"
/// @addtogroup Core
/// @{
/** @brief simple math functions that uses operands stored in std::string. useful when performing math on tokens. */
class CPPCHECKLIB MathLib {
public:
typedef long long bigint;
static bigint toLongNumber(const std::string & str);
static double toDoubleNumber(const std::string & str);
template<typename T>
static std::string toString(const T &d) {
std::ostringstream result;
result.precision(8);
result << d;
if (isNullValue(result.str()))
return std::string("0");
return result.str();
}
static bool isInt(const std::string & str);
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static bool isFloat(const std::string &str);
static bool isNegative(const std::string &str);
static bool isHex(const std::string& str);
static bool isOct(const std::string& str);
static std::string add(const std::string & first, const std::string & second);
static std::string subtract(const std::string & first, const std::string & second);
static std::string multiply(const std::string & first, const std::string & second);
static std::string divide(const std::string & first, const std::string & second);
static std::string mod(const std::string & first, const std::string & second);
static std::string calculate(const std::string & first, const std::string & second, char action);
static std::string sin(const std::string & tok);
static std::string cos(const std::string & tok);
static std::string tan(const std::string & tok);
static std::string abs(const std::string & tok);
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static bool isEqual(const std::string & first, const std::string & second);
static bool isNotEqual(const std::string & first, const std::string & second);
static bool isGreater(const std::string & first, const std::string & second);
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static bool isGreaterEqual(const std::string & first, const std::string & second);
static bool isLess(const std::string & first, const std::string & second);
static bool isLessEqual(const std::string & first, const std::string & second);
static bool isNullValue(const std::string &tok);
/**
* Return true if given character is 0,1,2,3,4,5,6 or 7.
* @param c The character to check
* @return true if given character is octal digit.
*/
static bool isOctalDigit(char c);
};
/// @}
#endif