Structure | Union |
|---|---|
| struct keyword is used to define a structure | union keyword is used to define a union |
| In structure, each member get separate space in memory | Total memory space allocated is equal to the member with the largest size |
| All other members use its own memory space | All other members share the same memory space |
| All the members can be initialized while declaring the variable | The only first member can be initialized while declaring the variable |
| An individual member can be accessed at a time | Only one member can be accessed at a time |
| Syntax: struct [structure name] { member definition; member definition; … }; | Syntax: union [union name] { member definition; member definition; … }; |
| Example: struct demo { int integer; float x; } | Example: union demo{ int integer;{ float x;{ } |
It is very easy to learn and understand the structure and union from this difference very niceπ
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