KwickClips C · 42 sec · free
Does a prototype have a body?
Short answer. No. It ends with a semicolon.
What does the compiler use it for?
To check every call.
Add a prototype
| int add(int, int); |
| Goes before main |
| Ends with a semicolon, no body |
Remember
| Prototype = declaration |
| Compiler checks every call |
Your function is below main. Why the warning? Use a prototype. It gives the type, name and parameter types. Put it before main. End it with a semicolon. Remember. A prototype is a declaration. The compiler checks calls with it.
This clip is from the full lesson: Functions in C: Call by Value and Call by Reference — 8 minutes, with the tables, the quick answers and the whole lesson in text.
Useful for: GSEB Std 10 Computer Studies, Programming All levels C, Programming All levels C, Programming All levels C
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