KwickClips C++ · 40 sec · free
When do you use ->?
Short answer. With a pointer to a structure.
How do you reach roll of the second student?
c[1].roll.
Reaching members
| You have | Write | Example |
|---|---|---|
| A variable | dot | s.marks |
| A pointer | arrow | p->marks |
| An array | index, dot | c[1].roll |
Remember
| Variable: dot |
| Pointer: arrow |
When do you use a dot, and when an arrow? Here is the rule. With a variable, use a dot. With a pointer, use an arrow. With an array, use the index, then a dot. Remember this. Variable uses dot. Pointer uses arrow.
This clip is from the full lesson: Structures, Unions, Enumerations and typedef — 6 minutes, with the tables, the quick answers and the whole lesson in text.
Useful for: GSEB Std 10 Computer Studies, GSEB Std 10 Computer Studies, GSEB Std 10 Computer Studies, Programming All levels C
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