| author | Peter Hegyi <hegyi@tmit.bme.hu> |
| Mon, 07 Jul 2008 08:10:39 -0500 | |
| changeset 1 | 67188bd752db |
| permissions | -rw-r--r-- |
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#include "map_value.h" |
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#include <sstream> |
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#include <iostream> |
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|
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MapValue::MapValue() |
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{
|
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//std::cout << __PRETTY_FUNCTION__ << std::endl; |
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has_value = false; |
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} |
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|
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MapValue::MapValue(double d) |
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{
|
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//std::cout << __PRETTY_FUNCTION__ << std::endl; |
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p_value = new double(d); |
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type = NUMERIC; |
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has_value = true; |
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} |
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|
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MapValue::MapValue(std::string str) |
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{
|
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//std::cout << __PRETTY_FUNCTION__ << std::endl; |
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p_value = new std::string(str); |
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type = STRING; |
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has_value = true; |
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} |
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|
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MapValue::MapValue(const char* str) |
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{
|
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//std::cout << __PRETTY_FUNCTION__ << std::endl; |
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p_value = new std::string(str); |
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type = STRING; |
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has_value = true; |
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} |
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|
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MapValue::operator double() const |
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{
|
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//std::cout << __PRETTY_FUNCTION__ << std::endl; |
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if (!has_value) throw IllegalOperation(); |
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if (type == NUMERIC) |
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return *(static_cast<double*>(p_value)); |
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else |
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throw IllegalOperation(); |
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} |
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|
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MapValue::operator std::string() const |
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{
|
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//std::cout << __PRETTY_FUNCTION__ << std::endl; |
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if (!has_value) throw IllegalOperation(); |
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std::string ret; |
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switch (type) |
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{
|
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case NUMERIC: |
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{
|
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double d = *(static_cast<double*>(p_value)); |
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std::ostringstream ostr; |
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ostr << d; |
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ret = ostr.str(); |
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} |
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break; |
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case STRING: |
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ret = *(static_cast<std::string*>(p_value)); |
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break; |
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} |
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return ret; |
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} |
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|
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MapValue::MapValue(const MapValue& v) |
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{
|
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//std::cout << __PRETTY_FUNCTION__ << std::endl; |
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if (!v.has_value) throw IllegalOperation(); |
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has_value = true; |
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type = v.type; |
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switch (v.type) |
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{
|
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case NUMERIC: |
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p_value = new double(*(static_cast<double*>(v.p_value))); |
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break; |
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case STRING: |
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p_value = new std::string(*(static_cast<std::string*>(v.p_value))); |
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break; |
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} |
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} |
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|
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MapValue& MapValue::operator=(const MapValue& v) |
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{
|
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//std::cout << __PRETTY_FUNCTION__ << std::endl; |
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if (&v != this) |
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{
|
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if (!v.has_value) throw IllegalOperation(); |
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clear(); |
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has_value = true; |
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type = v.type; |
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switch (v.type) |
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{
|
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case NUMERIC: |
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p_value = new double(*(static_cast<double*>(v.p_value))); |
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break; |
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case STRING: |
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p_value = new std::string(*(static_cast<std::string*>(v.p_value))); |
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break; |
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} |
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} |
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return *this; |
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} |
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|
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MapValue::~MapValue() |
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{
|
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//std::cout << __PRETTY_FUNCTION__ << std::endl; |
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clear(); |
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} |
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|
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void MapValue::clear() |
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{
|
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//std::cout << __PRETTY_FUNCTION__ << std::endl; |
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if (!has_value) return; |
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switch (type) |
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{
|
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case NUMERIC: |
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delete static_cast<double*>(p_value); |
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break; |
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case STRING: |
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delete static_cast<std::string*>(p_value); |
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break; |
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} |
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} |
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|
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MapValue::Type MapValue::getType() const |
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{
|
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//std::cout << __PRETTY_FUNCTION__ << std::endl; |
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return type; |
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} |
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|
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bool MapValue::hasValue() const |
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{
|
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//std::cout << __PRETTY_FUNCTION__ << std::endl; |
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return has_value; |
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} |
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|
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std::ostream& operator<<(std::ostream &os, const MapValue& v) |
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{
|
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//std::cout << __PRETTY_FUNCTION__ << std::endl; |
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if (!v.has_value) return os; |
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switch (v.type) |
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{
|
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case MapValue::NUMERIC: |
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os << *(static_cast<double*>(v.p_value)); |
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break; |
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case MapValue::STRING: |
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os << *(static_cast<std::string*>(v.p_value)); |
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break; |
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} |
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return os; |
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} |