1 bit flags can be compacted.Reading external file formats -- non-standard file formats could be read in, e.g., 9-bit integers.C allows us to do this in a structure definition by putting :bit length after the variable. The order in which arguments to functions and operands to most operators are evaluated is unspecified. Similarly Structures are used to represent a record. They precede the type that they modify. To find the address of a structure variable, place the '&'; operator before the structure's name as follows −To access the members of a structure using a pointer to that structure, you must use the → operator as follows −Let us re-write the above example using structure pointer.When the above code is compiled and executed, it produces the following result −Bit Fields allow the packing of data in a structure. C - Storage Classes - A storage class defines the scope (visibility) and life-time of variables and/or functions within a C Program. It was initially developed by Dennis Ritchie as a system programming language to write operating system. C (/ s iː /, as in the letter c) is a general-purpose, procedural computer programming language supporting structured programming, lexical variable scope, and recursion, with a static type system.By design, C provides constructs that map efficiently to typical machine instructions.It has found lasting use in applications previously coded in assembly language. View daily, weekly or monthly format back to when Citigroup, Inc. stock was issued. For example, static memory allocation has little allocation overhead, automatic allocation may involve slightly more overhead, and dynamic memory allocation can potentially have a great deal of overhead for both allocation and deallocation. The following table lists the assignment operators supported by the C language −Try the following example to understand all the assignment operators available in C −When you compile and execute the above program, it produces the following result − For example −Here, the packed_struct contains 6 members: Four 1 bit flags f1..f3, a 4-bit type and a 9-bit my_int.C automatically packs the above bit fields as compactly as possible, provided that the maximum length of the field is less than or equal to the integer word length of the computer. They include (a) Pointer types, (b) Array types, (c) Structure types, (d) Union types and (e) Function types. If this is not the case, then some compilers may allow memory overlap for the fields while others would store the next field in the next word. It was initially developed by Dennis Ritchie as a system programming language to write operating system. Where possible, automatic or static allocation is usually simplest because the storage is managed by the compiler, freeing the programmer of the potentially error-prone chore of manually allocating and releasing storage.