In C programming, a struct (or structure) is a user-defined data type that allows you to group variables of different types under a single name. The struct keyword is used to define a structure in C programming. Structures are used to create data structures such as trees, linked lists, etc. . They can also be used for returning multiple values from a function.
A structure in C is a composite data type declaration that defines a physically grouped list of variables under one name in a block of memory, allowing the different variables to be accessed via a single pointer or by the structure itself). The C struct directly references a contiguous block of physical memory, usually delimited (sized) by word-length boundaries). Each variable in the structure is known as a member of the structure.
To create a structure in C, the struct keyword is used followed by the tag name of the structure. Then the body of the structure is defined, in which the required data members (primitive or user-defined data types) are added. To access members of a structure, use the dot syntax ( .) .
Some limitations of C structures include higher memory consumption due to structure padding, no data hiding, and the inability to have functions inside the structure.
