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.sub 'main' :main | |
$P0 = 'c_int16'() | |
.local pmc lib | |
lib = loadlib 'testing_lib' | |
$P1 = 'dlfunc'(lib, 'say', $P0, $P0) | |
$P2 = new 'c_int16' | |
$P3 = $P1($P2) | |
say $P3 | |
$P4 = subclass 'Structure', 'sockaddr_in' # defining my own C data type structure | |
$P4['foo'] = $P0 | |
$P5 = new $P4 # $P5 now has a new structure instance | |
$P6 = subclass 'c_int16', 'my_type' # Creating an alias of a type, data abstraction ftw | |
$P7 = new $P6 # Instansiating my new data type | |
$P7 = 1234 # works fine | |
$P7 = 32768 # failure because of the limit on a signed 16 bit int | |
$P1 = 'dlfunc'(lib, 'foo', $P0, $P5) # takes either an instance type | |
$P1 = 'dlfunc'(lib, 'foo', $P0, $P4) # or a class name for definition | |
# An example of a callback from C to PIR | |
lib = loadlib 'libc' | |
.local pmc qsort | |
qsort = lib['qsort'] # why shouldn't this work? | |
$P1 = 'array'($P0, 5) | |
$P2 = new $P1 | |
$P2[0] = 99 | |
$P2[1] = 5 | |
$P2[2] = 1 | |
$P2[3] = 7 | |
$P2[4] = 33 | |
$P3 = ptr($P0) | |
.local pmc cmpfunc_sig, cmpfunc | |
cmpfunc_sig = 'cfunctype'($P0, $P3, $P3) | |
cmpfunc = cmpfunc_sig("my_cmp_function") | |
$P4 = sizeof($P0) | |
qsort($P2, 5, $P4, cmpfunc) | |
.end |
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