diff options
Diffstat (limited to 'src/amount.h')
| -rw-r--r-- | src/amount.h | 28 |
1 files changed, 19 insertions, 9 deletions
diff --git a/src/amount.h b/src/amount.h index f90a5e4c..47fc913d 100644 --- a/src/amount.h +++ b/src/amount.h @@ -66,18 +66,23 @@ DECLARE_EXCEPTION(amount_error); * math, and also for uncommoditized math. In the commoditized case, * commodities keep track of how they are used, and will always * display back to the user after the same fashion. For - * uncommoditized numbers, no display truncation is ever done. - * Internally, precision is always kept to an excessive degree. + * uncommoditized numbers, no display truncation is ever done. In + * both cases, internal precision is always kept to an excessive + * degree. */ - class amount_t - : public ordered_field_operators<amount_t, - ordered_field_operators<amount_t, long, - ordered_field_operators<amount_t, unsigned long, - ordered_field_operators<amount_t, double> > > > +class amount_t + : public ordered_field_operators<amount_t, + ordered_field_operators<amount_t, long, + ordered_field_operators<amount_t, unsigned long, + ordered_field_operators<amount_t, double> > > > { public: class bigint_t; + // jww (2007-05-01): Change my uses of unsigned int to use this type + // for precision values. Or perhaps just std::size_t? + typedef uint_least16_t precision_t; + static void initialize(); static void shutdown(); @@ -92,7 +97,7 @@ protected: void _copy(const amount_t& amt); void _release(); void _dup(); - void _resize(unsigned int prec); + void _resize(precision_t prec); void _clear(); bigint_t * quantity; @@ -170,6 +175,9 @@ public: // test for truth, zero and non-zero operator bool() const { + return nonzero(); + } + bool nonzero() const { return ! zero(); } @@ -180,6 +188,8 @@ public: } // conversion methods + long to_long() const; + double to_double() const; string to_string() const; string to_fullstring() const; string quantity_string() const; @@ -220,7 +230,7 @@ public: optional<string> tag() const; // general methods - amount_t round(unsigned int prec) const; + amount_t round(precision_t prec) const; amount_t round() const; amount_t unround() const; amount_t value(const moment_t& moment) const; |