C++ (Cpp) symbol_table::add示例

示例#1

文件： cheat.c 项目： jiangzhonghui/mame

cheat_parameter::cheat_parameter(cheat_manager &manager, symbol_table &symbols, const char *filename, xml_data_node &paramnode)
	: m_value(0)
{
	// read the core attributes
	m_minval = number_and_format(xml_get_attribute_int(&paramnode, "min", 0), xml_get_attribute_int_format(&paramnode, "min"));
	m_maxval = number_and_format(xml_get_attribute_int(&paramnode, "max", 0), xml_get_attribute_int_format(&paramnode, "max"));
	m_stepval = number_and_format(xml_get_attribute_int(&paramnode, "step", 1), xml_get_attribute_int_format(&paramnode, "step"));

	// iterate over items
	for (xml_data_node *itemnode = xml_get_sibling(paramnode.child, "item"); itemnode != NULL; itemnode = xml_get_sibling(itemnode->next, "item"))
	{
		// check for NULL text
		if (itemnode->value == NULL || itemnode->value[0] == 0)
			throw emu_fatalerror("%s.xml(%d): item is missing text\n", filename, itemnode->line);

		// check for non-existant value
		if (xml_get_attribute(itemnode, "value") == NULL)
			throw emu_fatalerror("%s.xml(%d): item is value\n", filename, itemnode->line);

		// extract the parameters
		UINT64 value = xml_get_attribute_int(itemnode, "value", 0);
		int format = xml_get_attribute_int_format(itemnode, "value");

		// allocate and append a new item
		item &curitem = m_itemlist.append(*global_alloc(item(itemnode->value, value, format)));

		// ensure the maximum expands to suit
		m_maxval = MAX(m_maxval, curitem.value());
	}

	// add a variable to the symbol table for our value
	symbols.add("param", symbol_table::READ_ONLY, &m_value);
}

示例#2

文件： cheat.cpp 项目： crazii/mameui

cheat_parameter::cheat_parameter(cheat_manager &manager, symbol_table &symbols, const char *filename, xml_data_node const &paramnode)
	: m_value(0)
{
	// read the core attributes
	m_minval = number_and_format(paramnode.get_attribute_int("min", 0), paramnode.get_attribute_int_format("min"));
	m_maxval = number_and_format(paramnode.get_attribute_int("max", 0), paramnode.get_attribute_int_format("max"));
	m_stepval = number_and_format(paramnode.get_attribute_int("step", 1), paramnode.get_attribute_int_format("step"));

	// iterate over items
	for (xml_data_node const *itemnode = paramnode.get_child("item"); itemnode != nullptr; itemnode = itemnode->get_next_sibling("item"))
	{
		// check for nullptr text
		if (itemnode->get_value() == nullptr || itemnode->get_value()[0] == 0)
			throw emu_fatalerror("%s.xml(%d): item is missing text\n", filename, itemnode->line);

		// check for non-existant value
		if (!itemnode->has_attribute("value"))
			throw emu_fatalerror("%s.xml(%d): item is value\n", filename, itemnode->line);

		// extract the parameters
		uint64_t const value = itemnode->get_attribute_int("value", 0);
		xml_data_node::int_format const format = itemnode->get_attribute_int_format("value");

		// allocate and append a new item
		auto curitem = std::make_unique<item>(itemnode->get_value(), value, format);

		// ensure the maximum expands to suit
		m_maxval = std::max(m_maxval, curitem->value());

		m_itemlist.push_back(std::move(curitem));
	}

	// add a variable to the symbol table for our value
	symbols.add("param", symbol_table::READ_ONLY, &m_value);
}