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Replace Math128 with GncInt128, add GncRational to Doxygen docs.

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This commit is contained in:
John Ralls 2015-10-31 16:27:51 -07:00
parent 089817a9f6
commit fdc9a6a199
3 changed files with 17 additions and 13 deletions
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22
src/libqof/qof/gnc-int128.hpp
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@ -45,8 +45,9 @@ extern "C"
#include <type_traits>
//using std::string;
/**
/** @addtogroup GncInt128
* @ingroup QOF
* @{
* @brief provides a 128-bit int as a base class for GncNumeric.
*
* All the usual operators are provided. Only the explicit integer
@ -64,9 +65,9 @@ class GncInt128
uint64_t m_lo;
public:
static const unsigned int numlegs = 2;
static const unsigned int legbits = 64;
static const unsigned int maxbits = legbits * numlegs;
static const unsigned int numlegs = 2;
static const unsigned int legbits = 64;
static const unsigned int maxbits = legbits * numlegs;
enum // Values for m_flags
{
@ -75,14 +76,16 @@ enum // Values for m_flags
overflow = 2,
NaN = 4
};
/**
* Construct a GncInt128 from two int64_t.
*
* N.B.: If the two parameters are of differing sign, it's taken to
/** @addtogroup Constructors Constructors
* Constructors are templated so that a GncInt128 can be constructed from any
* arbitrary integer type or pair of integer types.
* @note If the two parameters are of differing sign, it's taken to
* mean that the lower magnitude is *reducing* the magnitude of the
* upper, so the lower magnitude will be subracted from UINT64_MAX to
* obtain the lower limb value.
* @{
*/
/** Default constructor. Makes 0. */
GncInt128();
template <typename T>
GncInt128(T lower) : GncInt128 {INT64_C(0), static_cast<int64_t>(lower)}
@ -119,6 +122,7 @@ enum // Values for m_flags
GncInt128 (int64_t upper, uint64_t lower, unsigned char flags = '\0');
GncInt128 (uint64_t upper, uint64_t lower, unsigned char flags = '\0');
/** @} */
/**
* Clear the object.
*

4
src/libqof/qof/gnc-rational.hpp
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@ -24,6 +24,10 @@
struct GncDenom;
/** @ingroup QOF
* @brief Rational number class using GncInt128 for the numerator and denominator.
*/
class GncRational
{
public:

4
src/libqof/qof/qof.h
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@ -38,10 +38,6 @@
@addtogroup KVP KVP: Key-Value Pairs
@ingroup QOF
*/
/**
@addtogroup Math128 Math128: 128-bit Integer Math Library
@ingroup QOF
*/
/**
@addtogroup Numeric Numeric: Rational Number Handling w/ Rounding Error Control
@ingroup QOF