Whether the identifier denotes an object of user-defined type or a type derived from a user-defined type. Whether the identifier denotes a function or a type derived from a function. The number of arguments to a function. The dollar sign is also a valid identifier in Visual C++.
Known to ancient Egyptians, watercolor painting is one of the oldest art forms. Artists from medieval times used watercolors for the illumination of parchment papers, but during the 16th, 17th and 18th centuries, watercolors were restricted to miniature paintings on card, ivory, parchment or porcelain.
Watercolor, also known in French as aquarelle, is generally described as painting with water-soluble pigments on paper. Most commonly the pigments are suspended in a vehicle or binder of gum arabic. The classic painting technique was perfected in England during the eighteenth and nineteenth centuries.