How can you tell what information is going into a function and what information is coming out of a function? computer language: C

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
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How can you tell what information is going into a function and what information is coming out of a function?

computer language: C

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Explanation of a function

The function declaration mentions the return type, the number of parameters and the datatype of the parameters. The function can be declared and defined (with the body) separately, but it must be declared before it can be used.

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