strings.c:21:6: Function main declared to return void, should return int
strings.c: (in function main)
strings.c:24:14: Function call may modify observer: "hullo"
strings.c:25:7: Observer storage passed as only param: f3 ("hullo")
   strings.c:25:7: Storage becomes observer

Finished LCLint checking --- 3 code errors found, as expected

strings.c:21:6: Function main declared to return void, should return int

Finished LCLint checking --- 1 code error found, as expected

strings.c: (in function main)
strings.c:23:14: Call to unconstrained function f1 may modify observer: "hullo"
   strings.c:23:14: Storage becomes observer
strings.c:24:14: Function call may modify observer: "hullo"
strings.c:25:7: Call to unconstrained function f3 may modify observer: "hullo"
   strings.c:25:7: Storage becomes observer
strings.c:25:7: Observer storage passed as only param: f3 ("hullo")
   strings.c:25:7: Storage becomes observer

Finished LCLint checking --- 4 code errors found, as expected