diff options
Diffstat (limited to 'amount.h')
| -rw-r--r-- | amount.h | 66 |
1 files changed, 52 insertions, 14 deletions
@@ -15,6 +15,10 @@ class commodity_t; class amount_t { + public: + class bigint_t; + + protected: void _init(); void _copy(const amount_t& amt); void _release(); @@ -23,23 +27,21 @@ class amount_t void _clear() { if (quantity) { - assert(commodity); + assert(commodity_); _release(); - quantity = NULL; - commodity = NULL; + quantity = NULL; + commodity_ = NULL; } else { - assert(! commodity); + assert(! commodity_); } } - public: - class bigint_t; - bigint_t * quantity; - commodity_t * commodity; + commodity_t * commodity_; + public: // constructors - amount_t() : quantity(NULL), commodity(NULL) { + amount_t() : quantity(NULL), commodity_(NULL) { DEBUG_PRINT("ledger.memory.ctors", "ctor amount_t"); } amount_t(const amount_t& amt) : quantity(NULL) { @@ -47,7 +49,7 @@ class amount_t if (amt.quantity) _copy(amt); else - commodity = NULL; + commodity_ = NULL; } amount_t(const std::string& value) : quantity(NULL) { DEBUG_PRINT("ledger.memory.ctors", "ctor amount_t"); @@ -69,6 +71,11 @@ class amount_t _release(); } + commodity_t& commodity() const; + void set_commodity(commodity_t& comm) { + commodity_ = &comm; + } + // assignment operator amount_t& operator=(const amount_t& amt); amount_t& operator=(const std::string& value); @@ -149,7 +156,7 @@ class amount_t bool operator>=(const amount_t& amt) const; bool operator==(const amount_t& amt) const; bool operator!=(const amount_t& amt) const { - if (commodity != amt.commodity) + if (commodity_ != amt.commodity_) return true; return ! (*this == amt); } @@ -164,13 +171,27 @@ class amount_t void parse(std::istream& in); void parse(const std::string& str); - void write_quantity(std::ostream& out) const; void read_quantity(char *& data); - void read_quantity(std::istream& in); + void write_quantity(std::ostream& out) const; bool valid() const; + // Classes that are friends, and help to implement this class + + friend std::ostream& operator<<(std::ostream& out, const amount_t& amt); friend std::istream& operator>>(std::istream& in, amount_t& amt); + + friend unsigned int sizeof_bigint_t(); + + friend void read_binary_amount(char *& data, amount_t& amt); + friend void write_binary_amount(std::ostream& out, const amount_t& amt); + + // This function is special, and exists only to support a custom + // optimization in binary.cc (which offers a significant enough gain + // to be worth the trouble). + + friend void clean_commodity_history(char * item_pool, + char * item_pool_end); }; unsigned int sizeof_bigint_t(); @@ -209,7 +230,7 @@ class commodity_t class updater_t { public: virtual ~updater_t() {} - virtual void operator()(commodity_t * commodity, + virtual void operator()(commodity_t& commodity, const std::time_t moment, const std::time_t date, const std::time_t last, @@ -273,6 +294,16 @@ class commodity_t } #endif + operator bool() const { + return this != null_commodity; + } + bool operator==(const commodity_t& comm) const { + return this == &comm; + } + bool operator!=(const commodity_t& comm) const { + return this != &comm; + } + void check_symbol() { for (const char * p = symbol.c_str(); *p; p++) if (std::isspace(*p) || std::isdigit(*p) || *p == '-' || *p == '.') { @@ -310,6 +341,13 @@ class commodity_t } }; +inline commodity_t& amount_t::commodity() const { + if (! commodity_) + return *commodity_t::null_commodity; + else + return *commodity_; + } + } // namespace ledger #endif // _AMOUNT_H |