toma@hackb0x:~$ gcc -o blah blah.c 
blah.c: In function ‘getChange’:
blah.c:8: warning: format ‘%f’ expects type ‘float *’, but argument 2 has type ‘int *’
blah.c: In function ‘Convert’:
blah.c:30: warning: ‘return’ with a value, in function returning void
blah.c: In function ‘main’:
blah.c:82: error: expected expression before ‘int’
blah.c:82: error: too few arguments to function ‘getDollar’
blah.c:83: error: expected expression before ‘int’
blah.c:83: error: too few arguments to function ‘getCents’
toma@hackb0x:~$