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content/notes/09-intro-to-c-2.md
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@ -35,3 +35,13 @@ names are allocated to emmory locations of declaration
## Call by address ## Call by address
- address of parameter is passed to the rountine - address of parameter is passed to the rountine
- changes do propogate back to the caller
- more efficient because we only need to pass a pointer and not a value
### Multiple results
- c routine can return at most one value
- you can use input parameters which are pointers for "returning" results
### Arrays
- strings
-