- What are structure types in C?
Structure types are primarily used to store records. A record is made up of related fields. This makes it easier to organize a group of related data.
- What is a union?
Union is a collection of heterogeneous data type but it uses efficient memory utilization technique by allocating enough memory to hold the largest member. Here a single area of memory contains values of different types at different time. A union can never be initialized
- What are the differences between structures and union?
A structure variable contains each of the named members, and its size is large enough to hold all the members. Structure elements are of same size. A union contains one of the named members at a given time and is large enough to hold the largest member. Union element can be of different sizes.
- What are the differences between structures and arrays?
Structure is a collection of heterogeneous data type but array is a collection of homogeneous data types.
Array:
1-It is a collection of data items of same data type.
2-It has declaration only
3-.There is no keyword.
Structure:
1-It is a collection of data items of different data type.
2- It has declaration and definition
3- Keyword struct is used
- Can you pass an entire structure to functions?
Yes, it is possible to pass an entire structure to a function in a call by method style.
However, some programmers prefer declaring the structure globally, and then pass a variable of that structure type to a function.
This method helps maintain consistency and uniformity in terms of arguments type.
