What is anonymous union in C++?
Also know, what is anonymous union in C++?
A C++ anonymous union is a union without a class name. It cannot be followed by a declarator. An anonymous union is not a type; it defines an unnamed object and it cannot have member functions. The member names of an anonymous union must be distinct from other names within the scope in which the union is declared.
Similarly, how do unions work C++? A union in C programming is a user defined data type which may hold members of different sizes and type. Share a single memory location for a variable and use the same location for another variable of different data type. Use it if you want to use, for example, a long variable as two short type variables.
Also to know is, what are unions in C++?
union. A union is a special data type available in C that allows storing different data types in the same memory location. You can define a union with many members, but only one member can contain a value at any given time. Unions provide an efficient way of using the same memory location for multiple purposes.
What is union in C++ with example?
Example of using union in C++ union is a user-defined type that uses same block of memory for every its list member. Union may be useful when it is necessary to work with different representation of same binary data. For example, you need to store color data as four 8-bit unsigned char numbers.