C unions are used to save memory . To better understand an union, think of it as a chunk of memory that is used to store variables of different types. When we want to assign a new value to a field, then the existing data is replaced with new data.
Read moreWhat are the advantages of union in C?
Advantages of union
Read moreWhat is the real use of 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.
Read moreWhat is union explain with example in C?
Advertisements. A union is a special data type available in C that allows to store 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.
Read moreWhat is union function in C?
The UNION operator is used to combine the result-set of two or more SELECT statements . Every SELECT statement within UNION must have the same number of columns. The columns must also have similar data types. The columns in every SELECT statement must also be in the same order.
Read moreWhat is the use of union?
The primary use of a union is allowing access to a common location by different data types , for example hardware input/output access, bitfield and word sharing, or type punning. Unions can also provide low-level polymorphism.
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