mbed.org implementation of the abstract SmartREST library for the Cumulocity Platform SmartREST protocol.
Dependents: MbedSmartRestMain MbedSmartRestMain
FloatValue.h
- Committer:
- Cumulocity
- Date:
- 2014-11-15
- Revision:
- 11:e1bee9a77652
- Parent:
- 5:2b74510900da
File content as of revision 11:e1bee9a77652:
/* * FloatValue.h * * Created on: Nov 1, 2013 * * Authors: Vincent Wochnik <v.wochnik@gmail.com> * * Copyright (c) 2013 Cumulocity GmbH * * Permission is hereby granted, free of charge, to any person obtaining * a copy of this software and associated documentation files (the * "Software"), to deal in the Software without restriction, including * without limitation the rights to use, copy, modify, merge, publish, * distribute, sublicense, and/or sell copies of the Software, and to * permit persons to whom the Software is furnished to do so, subject to * the following conditions: * * The above copyright notice and this permission notice shall be * included in all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ #ifndef FLOATVALUE_H #define FLOATVALUE_H #include "config.h" #include <stdint.h> #include "Value.h" #define SMARTREST_FLOATVALUE_DETECTPREC 255 /** * A floating-point value. * * Example: * @code * // decleration // serialized form * FloatValue val1(3.1415, 2); // 3.14 * FloatValue val2(3.1234, 0); // 3 * FloatValue val3(3.95, 0); // 4 * FloatValue val4(0.55, 1, false); // .5 * FloatValue val4(0.55, 2, true); // 0.55 * @encode */ class FloatValue : public Value { public: /** * Creates a new instance of a floating-point value. * @param number the floating-point number * @param digits precision in number of digits * @param zflag whether to write a zero before the floating point */ FloatValue(double, uint8_t = SMARTREST_FLOATVALUE_DETECTPREC, bool = true); uint8_t valueType() const; long integerValue() const; double floatValue() const; const char * characterValue() const; size_t write(AbstractDataSink&) const; size_t length() const; Value* copy() const; protected: uint8_t detectPrecision(double); private: double _number; bool _negative; uint8_t _digits; bool _zflag; }; #endif