995 lines
19 KiB
C++
995 lines
19 KiB
C++
#ifndef _VALUE_H
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#define _VALUE_H
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#include "amount.h"
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#include "balance.h"
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namespace ledger {
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// The following type is a polymorphous value type used solely for
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// performance reasons. The alternative is to compute value
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// expressions (valexpr.cc) in terms of the largest data type,
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// balance_t. This was found to be prohibitively expensive, especially
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// when large logic chains were involved, since many temporary
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// allocations would occur for every operator. With value_t, and the
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// fact that logic chains only need boolean values to continue, no
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// memory allocations need to take place at all.
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class value_t
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{
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bool constructed;
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value_t(const value_t& copy);
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public:
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char data[sizeof(balance_t)];
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enum type_t {
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BOOLEAN,
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INTEGER,
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AMOUNT,
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BALANCE,
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ANY
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} type;
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value_t() : constructed(false) {
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*this = 0U;
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}
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value_t(const bool value) : constructed(false) {
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*((bool *) data) = value;
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type = BOOLEAN;
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}
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value_t(const unsigned int value) : constructed(false) {
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*((unsigned int *) data) = value;
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type = INTEGER;
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}
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value_t(const amount_t& value) : constructed(true) {
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new((amount_t *)data) amount_t(value);
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type = AMOUNT;
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}
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value_t(const balance_t& value) : constructed(true) {
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new((balance_t *)data) balance_t(value);
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type = BALANCE;
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}
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~value_t() {
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destroy();
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}
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void destroy() {
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if (constructed) {
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switch (type) {
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case AMOUNT:
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((amount_t *)data)->~amount_t();
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break;
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case BALANCE:
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((balance_t *)data)->~balance_t();
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break;
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default:
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break;
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}
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constructed = false;
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}
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}
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value_t& operator=(const bool value) {
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destroy();
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*((bool *) data) = value;
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type = BOOLEAN;
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return *this;
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}
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value_t& operator=(const unsigned int value) {
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destroy();
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*((unsigned int *) data) = value;
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type = INTEGER;
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return *this;
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}
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value_t& operator=(const amount_t& value) {
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destroy();
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new((amount_t *)data) amount_t(value);
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type = AMOUNT;
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return *this;
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}
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value_t& operator=(const balance_t& value) {
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destroy();
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new((balance_t *)data) balance_t(value);
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type = BALANCE;
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return *this;
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}
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value_t& operator+=(const value_t& value) {
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switch (value.type) {
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case BOOLEAN:
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case INTEGER:
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switch (type) {
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case BOOLEAN:
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cast(INTEGER);
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case INTEGER:
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*((unsigned int *) data) += *((unsigned int *) value.data);
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break;
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case AMOUNT:
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*((amount_t *) data) += *((unsigned int *) value.data);
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break;
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case BALANCE:
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*((balance_t *) data) += amount_t(*((unsigned int *) value.data));
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break;
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default:
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assert(0);
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break;
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}
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break;
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case AMOUNT:
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switch (type) {
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case BOOLEAN:
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case INTEGER:
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cast(AMOUNT);
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case AMOUNT:
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*((amount_t *) data) += *((amount_t *) value.data);
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break;
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case BALANCE:
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*((balance_t *) data) += *((amount_t *) value.data);
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break;
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default:
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assert(0);
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break;
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}
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break;
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case BALANCE:
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switch (type) {
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case BOOLEAN:
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case INTEGER:
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case AMOUNT:
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cast(BALANCE);
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case BALANCE:
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*((balance_t *) data) += *((balance_t *) value.data);
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break;
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default:
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assert(0);
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break;
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}
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break;
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default:
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assert(0);
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break;
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}
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return *this;
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}
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value_t& operator-=(const value_t& value) {
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switch (value.type) {
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case BOOLEAN:
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case INTEGER:
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switch (type) {
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case BOOLEAN:
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cast(INTEGER);
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case INTEGER:
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*((unsigned int *) data) -= *((unsigned int *) value.data);
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break;
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case AMOUNT:
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*((amount_t *) data) -= *((unsigned int *) value.data);
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break;
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case BALANCE:
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*((balance_t *) data) -= amount_t(*((unsigned int *) value.data));
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break;
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default:
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assert(0);
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break;
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}
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break;
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case AMOUNT:
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switch (type) {
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case BOOLEAN:
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case INTEGER:
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cast(AMOUNT);
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case AMOUNT:
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*((amount_t *) data) -= *((amount_t *) value.data);
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break;
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case BALANCE:
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*((balance_t *) data) -= *((amount_t *) value.data);
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break;
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default:
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assert(0);
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break;
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}
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break;
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case BALANCE:
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switch (type) {
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case BOOLEAN:
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case INTEGER:
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case AMOUNT:
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cast(BALANCE);
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case BALANCE:
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*((balance_t *) data) -= *((balance_t *) value.data);
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break;
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default:
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assert(0);
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break;
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}
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break;
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default:
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assert(0);
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break;
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}
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return *this;
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}
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value_t& operator*=(const value_t& value) {
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switch (value.type) {
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case BOOLEAN:
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case INTEGER:
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switch (type) {
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case BOOLEAN:
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cast(INTEGER);
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case INTEGER:
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*((unsigned int *) data) *= *((unsigned int *) value.data);
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break;
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case AMOUNT:
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*((amount_t *) data) *= *((unsigned int *) value.data);
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break;
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case BALANCE:
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*((balance_t *) data) *= amount_t(*((unsigned int *) value.data));
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break;
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default:
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assert(0);
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break;
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}
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break;
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case AMOUNT:
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switch (type) {
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case BOOLEAN:
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case INTEGER:
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cast(AMOUNT);
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case AMOUNT:
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*((amount_t *) data) *= *((amount_t *) value.data);
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break;
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case BALANCE:
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*((balance_t *) data) *= *((amount_t *) value.data);
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break;
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default:
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assert(0);
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break;
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}
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break;
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case BALANCE:
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switch (type) {
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case BOOLEAN:
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case INTEGER:
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case AMOUNT:
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cast(BALANCE);
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case BALANCE:
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*((balance_t *) data) *= *((balance_t *) value.data);
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break;
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default:
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assert(0);
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break;
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}
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break;
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default:
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assert(0);
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break;
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}
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return *this;
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}
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value_t& operator/=(const value_t& value) {
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switch (value.type) {
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case BOOLEAN:
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case INTEGER:
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switch (type) {
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case BOOLEAN:
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cast(INTEGER);
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case INTEGER:
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*((unsigned int *) data) /= *((unsigned int *) value.data);
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break;
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case AMOUNT:
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*((amount_t *) data) /= *((unsigned int *) value.data);
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break;
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case BALANCE:
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*((balance_t *) data) /= amount_t(*((unsigned int *) value.data));
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break;
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default:
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assert(0);
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break;
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}
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break;
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case AMOUNT:
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switch (type) {
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case BOOLEAN:
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case INTEGER:
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cast(AMOUNT);
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case AMOUNT:
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*((amount_t *) data) /= *((amount_t *) value.data);
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break;
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case BALANCE:
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*((balance_t *) data) /= *((amount_t *) value.data);
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break;
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default:
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assert(0);
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break;
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}
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break;
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case BALANCE:
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switch (type) {
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case BOOLEAN:
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case INTEGER:
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case AMOUNT:
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cast(BALANCE);
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case BALANCE:
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*((balance_t *) data) /= *((balance_t *) value.data);
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break;
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default:
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assert(0);
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break;
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}
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break;
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default:
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assert(0);
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break;
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}
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return *this;
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}
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bool operator==(const value_t& value) {
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switch (value.type) {
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case BOOLEAN:
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switch (type) {
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case BOOLEAN:
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return *((bool *) data) == *((bool *) value.data);
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case INTEGER:
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return bool(*((unsigned int *) data)) == *((bool *) value.data);
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case AMOUNT:
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return bool(*((amount_t *) data)) == *((bool *) value.data);
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case BALANCE:
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return bool(*((balance_t *) data)) == *((bool *) value.data);
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default:
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assert(0);
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break;
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}
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break;
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case INTEGER:
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switch (type) {
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case BOOLEAN:
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return ((unsigned int) *((bool *) data)) == *((unsigned int *) value.data);
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case INTEGER:
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return *((unsigned int *) data) == *((unsigned int *) value.data);
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case AMOUNT:
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return ((unsigned int) *((amount_t *) data)) == *((unsigned int *) value.data);
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case BALANCE:
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return ((unsigned int) *((balance_t *) data)) == *((unsigned int *) value.data);
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default:
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assert(0);
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break;
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}
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break;
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case AMOUNT:
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switch (type) {
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case BOOLEAN:
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return amount_t(*((bool *) data)) == *((amount_t *) value.data);
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case INTEGER:
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return amount_t(*((unsigned int *) data)) == *((amount_t *) value.data);
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case AMOUNT:
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return *((amount_t *) data) == *((amount_t *) value.data);
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case BALANCE:
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return ((balance_t *) data)->amount() == *((amount_t *) value.data);
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default:
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assert(0);
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break;
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}
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break;
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case BALANCE:
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switch (type) {
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case BOOLEAN:
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return balance_t(*((bool *) data)) == *((balance_t *) value.data);
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case INTEGER:
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return balance_t(*((unsigned int *) data)) == *((balance_t *) value.data);
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case AMOUNT:
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return balance_t(*((amount_t *) data)) == *((balance_t *) value.data);
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case BALANCE:
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return *((balance_t *) data) == *((balance_t *) value.data);
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default:
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assert(0);
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break;
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}
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break;
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default:
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assert(0);
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break;
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}
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return *this;
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}
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bool operator!=(const value_t& value) {
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return ! (*this == value);
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}
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bool operator<(const value_t& value) {
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switch (value.type) {
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case BOOLEAN:
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switch (type) {
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case BOOLEAN:
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return *((bool *) data) < *((bool *) value.data);
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case INTEGER:
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return bool(*((unsigned int *) data)) < *((bool *) value.data);
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case AMOUNT:
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return bool(*((amount_t *) data)) < *((bool *) value.data);
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case BALANCE:
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return bool(*((balance_t *) data)) < *((bool *) value.data);
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default:
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assert(0);
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break;
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}
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break;
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case INTEGER:
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switch (type) {
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case BOOLEAN:
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return ((unsigned int) *((bool *) data)) < *((unsigned int *) value.data);
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case INTEGER:
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return *((unsigned int *) data) < *((unsigned int *) value.data);
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case AMOUNT:
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return *((amount_t *) data) < *((unsigned int *) value.data);
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case BALANCE:
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return *((balance_t *) data) < *((unsigned int *) value.data);
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default:
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assert(0);
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break;
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}
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break;
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case AMOUNT:
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switch (type) {
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case BOOLEAN:
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return amount_t(*((bool *) data)) < *((amount_t *) value.data);
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case INTEGER:
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return amount_t(*((unsigned int *) data)) < *((amount_t *) value.data);
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case AMOUNT:
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return *((amount_t *) data) < *((amount_t *) value.data);
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case BALANCE:
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return ((balance_t *) data)->amount(((amount_t *) value.data)->commodity) < *((amount_t *) value.data);
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default:
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assert(0);
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break;
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}
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break;
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case BALANCE:
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switch (type) {
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case BOOLEAN:
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return balance_t(*((bool *) data)) < *((balance_t *) value.data);
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case INTEGER:
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return balance_t(*((unsigned int *) data)) < *((balance_t *) value.data);
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case AMOUNT:
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return balance_t(*((amount_t *) data)) < *((balance_t *) value.data);
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case BALANCE:
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return *((balance_t *) data) < *((balance_t *) value.data);
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default:
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assert(0);
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break;
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}
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break;
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default:
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assert(0);
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break;
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}
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return *this;
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}
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bool operator<=(const value_t& value) {
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switch (value.type) {
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case BOOLEAN:
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switch (type) {
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case BOOLEAN:
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return *((bool *) data) <= *((bool *) value.data);
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case INTEGER:
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return bool(*((unsigned int *) data)) <= *((bool *) value.data);
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case AMOUNT:
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return bool(*((amount_t *) data)) <= *((bool *) value.data);
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case BALANCE:
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return bool(*((balance_t *) data)) <= *((bool *) value.data);
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default:
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assert(0);
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break;
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}
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break;
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case INTEGER:
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switch (type) {
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case BOOLEAN:
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return ((unsigned int) *((bool *) data)) <= *((unsigned int *) value.data);
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case INTEGER:
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return *((unsigned int *) data) <= *((unsigned int *) value.data);
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case AMOUNT:
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return ((unsigned int) *((amount_t *) data)) <= *((unsigned int *) value.data);
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case BALANCE:
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return ((unsigned int) *((balance_t *) data)) <= *((unsigned int *) value.data);
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default:
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assert(0);
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break;
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}
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break;
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case AMOUNT:
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switch (type) {
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case BOOLEAN:
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return amount_t(*((bool *) data)) <= *((amount_t *) value.data);
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case INTEGER:
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return amount_t(*((unsigned int *) data)) <= *((amount_t *) value.data);
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case AMOUNT:
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return *((amount_t *) data) <= *((amount_t *) value.data);
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case BALANCE:
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return ((balance_t *) data)->amount() <= *((amount_t *) value.data);
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default:
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assert(0);
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break;
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}
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break;
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case BALANCE:
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switch (type) {
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case BOOLEAN:
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return balance_t(*((bool *) data)) <= *((balance_t *) value.data);
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case INTEGER:
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return balance_t(*((unsigned int *) data)) <= *((balance_t *) value.data);
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case AMOUNT:
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return balance_t(*((amount_t *) data)) <= *((balance_t *) value.data);
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case BALANCE:
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return *((balance_t *) data) <= *((balance_t *) value.data);
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default:
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assert(0);
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break;
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}
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break;
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default:
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assert(0);
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break;
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}
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return *this;
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}
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bool operator>(const value_t& value) {
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switch (value.type) {
|
|
case BOOLEAN:
|
|
switch (type) {
|
|
case BOOLEAN:
|
|
return *((bool *) data) > *((bool *) value.data);
|
|
|
|
case INTEGER:
|
|
return bool(*((unsigned int *) data)) > *((bool *) value.data);
|
|
|
|
case AMOUNT:
|
|
return bool(*((amount_t *) data)) > *((bool *) value.data);
|
|
|
|
case BALANCE:
|
|
return bool(*((balance_t *) data)) > *((bool *) value.data);
|
|
|
|
default:
|
|
assert(0);
|
|
break;
|
|
}
|
|
break;
|
|
|
|
case INTEGER:
|
|
switch (type) {
|
|
case BOOLEAN:
|
|
return ((unsigned int) *((bool *) data)) > *((unsigned int *) value.data);
|
|
|
|
case INTEGER:
|
|
return *((unsigned int *) data) > *((unsigned int *) value.data);
|
|
|
|
case AMOUNT:
|
|
return ((unsigned int) *((amount_t *) data)) > *((unsigned int *) value.data);
|
|
|
|
case BALANCE:
|
|
return ((unsigned int) *((balance_t *) data)) > *((unsigned int *) value.data);
|
|
|
|
default:
|
|
assert(0);
|
|
break;
|
|
}
|
|
break;
|
|
|
|
case AMOUNT:
|
|
switch (type) {
|
|
case BOOLEAN:
|
|
return amount_t(*((bool *) data)) > *((amount_t *) value.data);
|
|
|
|
case INTEGER:
|
|
return amount_t(*((unsigned int *) data)) > *((amount_t *) value.data);
|
|
|
|
case AMOUNT:
|
|
return *((amount_t *) data) > *((amount_t *) value.data);
|
|
|
|
case BALANCE:
|
|
return ((balance_t *) data)->amount(((amount_t *) value.data)->commodity) > *((amount_t *) value.data);
|
|
|
|
default:
|
|
assert(0);
|
|
break;
|
|
}
|
|
break;
|
|
|
|
case BALANCE:
|
|
switch (type) {
|
|
case BOOLEAN:
|
|
return balance_t(*((bool *) data)) > *((balance_t *) value.data);
|
|
|
|
case INTEGER:
|
|
return balance_t(*((unsigned int *) data)) > *((balance_t *) value.data);
|
|
|
|
case AMOUNT:
|
|
return balance_t(*((amount_t *) data)) > *((balance_t *) value.data);
|
|
|
|
case BALANCE:
|
|
return *((balance_t *) data) > *((balance_t *) value.data);
|
|
|
|
default:
|
|
assert(0);
|
|
break;
|
|
}
|
|
break;
|
|
|
|
default:
|
|
assert(0);
|
|
break;
|
|
}
|
|
return *this;
|
|
}
|
|
|
|
bool operator>=(const value_t& value) {
|
|
switch (value.type) {
|
|
case BOOLEAN:
|
|
switch (type) {
|
|
case BOOLEAN:
|
|
return *((bool *) data) >= *((bool *) value.data);
|
|
|
|
case INTEGER:
|
|
return bool(*((unsigned int *) data)) >= *((bool *) value.data);
|
|
|
|
case AMOUNT:
|
|
return bool(*((amount_t *) data)) >= *((bool *) value.data);
|
|
|
|
case BALANCE:
|
|
return bool(*((balance_t *) data)) >= *((bool *) value.data);
|
|
|
|
default:
|
|
assert(0);
|
|
break;
|
|
}
|
|
break;
|
|
|
|
case INTEGER:
|
|
switch (type) {
|
|
case BOOLEAN:
|
|
return ((unsigned int) *((bool *) data)) >= *((unsigned int *) value.data);
|
|
|
|
case INTEGER:
|
|
return *((unsigned int *) data) >= *((unsigned int *) value.data);
|
|
|
|
case AMOUNT:
|
|
return ((unsigned int) *((amount_t *) data)) >= *((unsigned int *) value.data);
|
|
|
|
case BALANCE:
|
|
return ((unsigned int) *((balance_t *) data)) >= *((unsigned int *) value.data);
|
|
|
|
default:
|
|
assert(0);
|
|
break;
|
|
}
|
|
break;
|
|
|
|
case AMOUNT:
|
|
switch (type) {
|
|
case BOOLEAN:
|
|
return amount_t(*((bool *) data)) >= *((amount_t *) value.data);
|
|
|
|
case INTEGER:
|
|
return amount_t(*((unsigned int *) data)) >= *((amount_t *) value.data);
|
|
|
|
case AMOUNT:
|
|
return *((amount_t *) data) >= *((amount_t *) value.data);
|
|
|
|
case BALANCE:
|
|
return ((balance_t *) data)->amount() >= *((amount_t *) value.data);
|
|
|
|
default:
|
|
assert(0);
|
|
break;
|
|
}
|
|
break;
|
|
|
|
case BALANCE:
|
|
switch (type) {
|
|
case BOOLEAN:
|
|
return balance_t(*((bool *) data)) >= *((balance_t *) value.data);
|
|
|
|
case INTEGER:
|
|
return balance_t(*((unsigned int *) data)) >= *((balance_t *) value.data);
|
|
|
|
case AMOUNT:
|
|
return balance_t(*((amount_t *) data)) >= *((balance_t *) value.data);
|
|
|
|
case BALANCE:
|
|
return *((balance_t *) data) >= *((balance_t *) value.data);
|
|
|
|
default:
|
|
assert(0);
|
|
break;
|
|
}
|
|
break;
|
|
|
|
default:
|
|
assert(0);
|
|
break;
|
|
}
|
|
return *this;
|
|
}
|
|
|
|
template <typename T>
|
|
operator T() const {
|
|
switch (type) {
|
|
case BOOLEAN:
|
|
return *((bool *) data);
|
|
case INTEGER:
|
|
return *((unsigned int *) data);
|
|
case AMOUNT:
|
|
return *((amount_t *) data);
|
|
case BALANCE:
|
|
return *((balance_t *) data);
|
|
|
|
default:
|
|
assert(0);
|
|
break;
|
|
}
|
|
assert(0);
|
|
return 0;
|
|
}
|
|
|
|
void cast(type_t cast_type) {
|
|
switch (type) {
|
|
case BOOLEAN:
|
|
switch (cast_type) {
|
|
case BOOLEAN:
|
|
break;
|
|
case INTEGER:
|
|
*((unsigned int *) data) = *((bool *) data);
|
|
break;
|
|
case AMOUNT:
|
|
new((amount_t *)data) amount_t(*((bool *) data));
|
|
constructed = true;
|
|
break;
|
|
case BALANCE:
|
|
new((balance_t *)data) balance_t(*((bool *) data));
|
|
constructed = true;
|
|
break;
|
|
|
|
default:
|
|
assert(0);
|
|
break;
|
|
}
|
|
break;
|
|
|
|
case INTEGER:
|
|
switch (cast_type) {
|
|
case BOOLEAN:
|
|
*((bool *) data) = *((unsigned int *) data);
|
|
break;
|
|
case INTEGER:
|
|
break;
|
|
case AMOUNT:
|
|
new((amount_t *)data) amount_t(*((unsigned int *) data));
|
|
constructed = true;
|
|
break;
|
|
case BALANCE:
|
|
new((balance_t *)data) balance_t(*((unsigned int *) data));
|
|
constructed = true;
|
|
break;
|
|
|
|
default:
|
|
assert(0);
|
|
break;
|
|
}
|
|
break;
|
|
|
|
case AMOUNT:
|
|
switch (cast_type) {
|
|
case BOOLEAN: {
|
|
bool temp = *((amount_t *) data);
|
|
destroy();
|
|
*((bool *)data) = temp;
|
|
break;
|
|
}
|
|
case INTEGER: {
|
|
unsigned int temp = *((amount_t *) data);
|
|
destroy();
|
|
*((unsigned int *)data) = temp;
|
|
break;
|
|
}
|
|
case AMOUNT:
|
|
break;
|
|
case BALANCE: {
|
|
amount_t temp = *((amount_t *) data);
|
|
destroy();
|
|
new((balance_t *)data) balance_t(temp);
|
|
constructed = true;
|
|
break;
|
|
}
|
|
|
|
default:
|
|
assert(0);
|
|
break;
|
|
}
|
|
break;
|
|
|
|
case BALANCE:
|
|
switch (cast_type) {
|
|
case BOOLEAN: {
|
|
bool temp = *((balance_t *) data);
|
|
destroy();
|
|
*((bool *)data) = temp;
|
|
break;
|
|
}
|
|
case INTEGER: {
|
|
unsigned int temp = ((balance_t *) data)->amount();
|
|
destroy();
|
|
*((unsigned int *)data) = temp;
|
|
break;
|
|
}
|
|
case AMOUNT: {
|
|
amount_t temp = ((balance_t *) data)->amount();
|
|
destroy();
|
|
new((amount_t *)data) amount_t(temp);
|
|
constructed = true;
|
|
break;
|
|
}
|
|
case BALANCE:
|
|
break;
|
|
|
|
default:
|
|
assert(0);
|
|
break;
|
|
}
|
|
break;
|
|
|
|
default:
|
|
assert(0);
|
|
break;
|
|
}
|
|
type = cast_type;
|
|
}
|
|
|
|
void negate() {
|
|
switch (type) {
|
|
case BOOLEAN:
|
|
*((bool *) data) = ! *((bool *) data);
|
|
break;
|
|
case INTEGER:
|
|
*((unsigned int *) data) = - *((unsigned int *) data);
|
|
break;
|
|
case AMOUNT:
|
|
((amount_t *) data)->negate();
|
|
break;
|
|
case BALANCE:
|
|
((balance_t *) data)->negate();
|
|
break;
|
|
|
|
default:
|
|
assert(0);
|
|
break;
|
|
}
|
|
}
|
|
|
|
void abs() {
|
|
switch (type) {
|
|
case BOOLEAN:
|
|
break;
|
|
case INTEGER:
|
|
if (*((unsigned int *) data) < 0)
|
|
*((unsigned int *) data) = - *((unsigned int *) data);
|
|
break;
|
|
case AMOUNT:
|
|
((amount_t *) data)->abs();
|
|
break;
|
|
case BALANCE:
|
|
((balance_t *) data)->abs();
|
|
break;
|
|
|
|
default:
|
|
assert(0);
|
|
break;
|
|
}
|
|
}
|
|
};
|
|
|
|
} // namespace ledger
|
|
|
|
#endif // _VALUE_H
|