BeeeOn::SimpleCalc Class Reference

#include <SimpleCalc.h>

Public Member Functions
double	evaluate (const std::string &input) const

Protected Member Functions
double	parseTerm (std::string::const_iterator &at, std::string::const_iterator end) const
char	parseOpOrEOF (std::string::const_iterator &at, std::string::const_iterator end) const
void	skipWhitespace (std::string::const_iterator &at, std::string::const_iterator end) const
void	apply (double &result, char op, double tmp) const
bool	isWhitespace (const char c) const
bool	isOperator (const char c) const
bool	isTerm (const char c) const

Detailed Description

Very simple evaluator of math expressions. It performs operations with left-associativity. Thus, there is no operator precedence applicated. Examples:

y = 2 + 5 * 1 - 3 / 2 * 5 -> 7 * 1 - 3 / 2 * 5 -> 7 - 3 / 2 * 5 -> 4 / 2 * 5 -> 2 * 5 -> 10

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The documentation for this class was generated from the following files:

• /var/lib/jenkins/workspace/beeeon-gateway-master/base/src/math/SimpleCalc.h
• /var/lib/jenkins/workspace/beeeon-gateway-master/base/src/math/SimpleCalc.cpp