cppcheck/lib/mathlib.h

89 lines
2.8 KiB
C++

/*
* Cppcheck - A tool for static C/C++ code analysis
* Copyright (C) 2007-2010 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>
/// @addtogroup Core
/// @{
/** @brief simple math functions that uses operands stored in std::string. useful when performing math on tokens. */
class Tokenizer;
class MathLib
{
public:
// To compile Cppcheck on a compiler that doesn't support "long long",
// use NOLONGLONG.
#ifdef NOLONGLONG
typedef long bigint;
#else
typedef long long bigint;
#endif
static bigint toLongNumber(const std::string & str);
static double toDoubleNumber(const std::string & str);
template<typename T>
static std::string toString(T d)
{
std::ostringstream result;
result << d;
std::string strResult(result.str());
if (strResult == "-0"
|| strResult == "+0"
|| strResult == "-0."
|| strResult == "+0.")
return std::string("0");
return result.str();
}
static bool isInt(const std::string & str);
static bool isFloat(const std::string &str);
static bool isNegative(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 calculate(const std::string & first, const std::string & second, char action, const Tokenizer *tokenizer);
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);
static bool isGreater(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