/usr/include/mama/MamaPrice.h is in libmama-dev 2.2.2.1-11.1ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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*
* OpenMAMA: The open middleware agnostic messaging API
* Copyright (C) 2011 NYSE Technologies, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301 USA
*/
#ifndef MAMA_PRICE_CPP_H__
#define MAMA_PRICE_CPP_H__
#include <mama/price.h>
static const int MAX_PRICE_STR_LEN = 32;
namespace Wombat
{
/**
* MamaPrice is a special data type for representing floating point
* numbers that often require special formatting for display purposes,
* such as prices. MamaPrice contains the 64-bit (double precision)
* floating point value and an optional display hint. The set of
* display hints includes hints for:
* - a number of decimal places,
* - a fractional denominator that are powers of two, and
* - hints for special denominators used in the finance industry
* (e.g., halves of 32nds).
*/
class MAMACPPExpDLL MamaPrice
{
public:
MamaPrice ();
MamaPrice (double value,
mamaPricePrecision precision = MAMA_PRICE_PREC_100);
MamaPrice (const MamaPrice& copy);
~MamaPrice ();
MamaPrice& operator= (const MamaPrice& rhs);
MamaPrice& operator+= (const MamaPrice& rhs);
MamaPrice& operator-= (const MamaPrice& rhs);
bool operator== (const MamaPrice& rhs) const;
bool operator== (double rhs) const;
bool operator!= (const MamaPrice& rhs) const
{
return ! operator== (rhs);
}
bool operator!= (double rhs) const
{
return ! operator== (rhs);
}
bool operator< (const MamaPrice& rhs) const;
bool operator< (double rhs) const;
bool operator> (const MamaPrice& rhs) const;
bool operator> (double rhs) const;
/**
* Subtraction operator. Note: this operator creates a temporary
* object.
*/
MamaPrice operator- (const MamaPrice& rhs) const
{
return MamaPrice (getValue() - rhs.getValue(),
rhs.getPrecision ());
}
/**
* Subtraction operator for double. Note: this operator creates a
* temporary object.
*/
MamaPrice operator- (double rhs) const
{
return MamaPrice (getValue () - rhs,
getPrecision ());
}
/**
* Negation operator. Note: this operator creates a temporary
* object.
*/
MamaPrice operator- () const
{
return MamaPrice (-getValue (),
getPrecision ());
}
/**
* Addition operator. Note: this operator creates a temporary object.
*/
MamaPrice operator+ (const MamaPrice& rhs) const
{
return MamaPrice (getValue () + rhs.getValue (),
rhs.getPrecision ());
}
/**
* Addition operator for double. Note: this operator creates a
* temporary object.
*/
MamaPrice operator+ (double rhs) const
{
return MamaPrice (getValue () + rhs,
getPrecision ());
}
double compare (const MamaPrice& rhs) const;
void clear ();
void set (double priceValue,
mamaPriceHints hints = 0);
void setValue (double value);
void setPrecision (mamaPricePrecision precision);
void setHints (mamaPriceHints hints);
void setIsValidPrice (bool valid);
double getValue () const;
mamaPricePrecision getPrecision () const;
mamaPriceHints getHints () const;
bool getIsValidPrice () const;
void setFromString (const char* str);
void getAsString (char* result,
mama_size_t maxLen) const;
/**
* Return a string representation of the price. Note that the
* alternative getAsString() method is more efficient because
* this method must allocate a temporary buffer (automatically
* destroyed upon object destruction).
*/
const char* getAsString () const;
/**
* Negate the price value. Hints and precisions are not affected.
*/
void negate ();
/**
* Return whether the price has a value equivalent to zero. It
* may not be exactly 0.0, but we check against +/- epsilon.
*/
bool isZero () const;
/**
* Return the appropriate precision code for a given number of
* decimal places.
*/
static mamaPricePrecision decimals2Precision (mama_i32_t places);
/**
* Return the appropriate precision code for a given fractional
* denominator.
*/
static mamaPricePrecision denom2Precision (mama_i32_t denominator);
/**
* Return the number of decimal places for a given precision code.
*/
static mama_i32_t precision2Decimals (mamaPricePrecision precision);
/**
* Return the fractional denominator for a given precision code.
*/
static mama_i32_t precision2Denom (mamaPricePrecision precision);
mamaPrice getCValue();
const mamaPrice getCValue() const;
private:
mamaPrice mPrice;
mutable char* mStrRep;
};
} // namespace Wombat
#endif // MAMA_PRICE_CPP_H__
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