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LibrePilot/flight/libraries/PyMite/vm/float.h

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/*
# This file is Copyright 2009, 2010 Dean Hall.
#
# This file is part of the PyMite VM.
# The PyMite VM is free software: you can redistribute it and/or modify
# it under the terms of the GNU GENERAL PUBLIC LICENSE Version 2.
#
# The PyMite VM 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.
# A copy of the GNU GENERAL PUBLIC LICENSE Version 2
# is seen in the file COPYING in this directory.
*/
#ifndef __FLOAT_H__
#define __FLOAT_H__
/**
* \file
* \brief Float Object Type
*
* Float object type header.
*/
/**
* Float obj
*
* 32b floating point number
*/
typedef struct PmFloat_s
{
/** Object descriptor */
PmObjDesc_t od;
/** Float value */
float val;
} PmFloat_t, *pPmFloat_t;
#ifdef HAVE_FLOAT
/**
* Creates a new Float object
*
* @param f Value to assign float (signed 32-bit).
* @param r_pint Return by ref, ptr to new float
* @return Return status
*/
PmReturn_t float_new(float f, pPmObj_t *r_pf);
/**
* Implements the UNARY_NEGATIVE bcode.
*
* Creates a new float with a value that is the negative of the given float.
*
* @param pobj Pointer to target object
* @param r_pint Return by ref, ptr to float
* @return Return status
*/
PmReturn_t float_negative(pPmObj_t pf, pPmObj_t *r_pf);
/**
* Returns by reference a float that is x op y.
*
* @param px The float left-hand argument
* @param py The float right-hand argument
* @param r_pn The return value of x op y
* @param op The operator (+,-,*,/ and power)
* @return Return status
*/
PmReturn_t float_op(pPmObj_t px, pPmObj_t py, pPmObj_t *r_pn, int8_t op);
/**
* Returns by reference a boolean that is x op y.
*
* @param px The float left-hand argument
* @param py The float right-hand argument
* @param r_pn The return value of x cmp y
* @param cmp The comparison operator
* @return Return status
*/
PmReturn_t float_compare(pPmObj_t px, pPmObj_t py, pPmObj_t *r_pobj,
PmCompare_t cmp);
#ifdef HAVE_PRINT
/**
* Sends out a float object.
* The number is preceded with a "-" when necessary.
*
* @param pObj Ptr to float object
* @return Return status
*/
PmReturn_t float_print(pPmObj_t pf);
#endif /* HAVE_PRINT */
#endif /* HAVE_FLOAT */
#endif /* __FLOAT_H__ */