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64 lines
2.3 KiB
C
64 lines
2.3 KiB
C
/*********************************************************************************************************
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* ------------------------------------------------------------------------------------------------------
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* file description
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* ------------------------------------------------------------------------------------------------------
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* \file calculate.h
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* \unit calculate
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* \brief This is a simple math expression calculation module for C language
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* \author Lamdonn
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* \version v1.0.0
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* \license GPL-2.0
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* \copyright Copyright (C) 2023 Lamdonn.
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********************************************************************************************************/
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#ifndef __calculate_H
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#define __calculate_H
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/* Version infomation */
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#define CALCULATE_V_MAJOR 1
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#define CALCULATE_V_MINOR 0
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#define CALCULATE_V_PATCH 0
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/* Configuration information */
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#define CALCULATE_EXFUNC_MAX 32 /**< The maximum extern function count supported */
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#define CALCULATE_CONSTV_MAX 16 /**< The maximum const value count supported, include Pi and E */
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/**
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* \brief enter a calculation expression to calculate the result, support 'in_function_table[]' table operation function
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* \param[in] *expression: expression
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* \return calculation result or NAN fail
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*/
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double calculate(const char *expression);
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/**
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* \brief Export external functions
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* \param[in] *name: function name
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* \param[in] func: function handle
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* \param[in] argc: count of arguments
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* \return 1 success or 0 fail
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*/
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int calculate_function(const char *name, double (*func)(), int argc);
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/**
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* \brief Export const value
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* \param[in] *name: function name
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* \param[in] value: const value
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* \return 1 success or 0 fail
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*/
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int calculate_constant(const char *name, double value);
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/**
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* \brief The iteration outputs the currently supported calculateion functions
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* \param[out] argc: address that output the function argc
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* \return function name, or NULL iteration end
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*/
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const char* calculate_ls_func(int *argc);
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/**
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* \brief The iteration outputs the currently supported constant
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* \param[out] value: address that output the constant
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* \return constant name, or NULL iteration end
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*/
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const char* calculate_ls_const(double *value);
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#endif
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