def test_qsort_callback(self):
TP = rffi.CArrayPtr(rffi.INT)
a = lltype.malloc(TP.TO, 5, flavor='raw')
a[0] = rffi.r_int(5)
a[1] = rffi.r_int(3)
a[2] = rffi.r_int(2)
a[3] = rffi.r_int(1)
a[4] = rffi.r_int(4)
def compare(a, b):
if a[0] > b[0]:
return rffi.r_int(1)
else:
return rffi.r_int(-1)
CALLBACK = rffi.CCallback([rffi.VOIDP, rffi.VOIDP], rffi.INT)
qsort = rffi.llexternal('qsort', [rffi.VOIDP, rffi.SIZE_T,
rffi.SIZE_T, CALLBACK], lltype.Void)
qsort(rffi.cast(rffi.VOIDP, a), 5, rffi.sizeof(rffi.INT), compare)
for i in range(5):
assert a[i] == i + 1
def test_qsort_callback(self):
TP = rffi.CArrayPtr(rffi.INT)
a = lltype.malloc(TP.TO, 5, flavor='raw')
a[0] = rffi.r_int(5)
a[1] = rffi.r_int(3)
a[2] = rffi.r_int(2)
a[3] = rffi.r_int(1)
a[4] = rffi.r_int(4)
def compare(a, b):
if a[0] > b[0]:
return rffi.r_int(1)
else:
return rffi.r_int(-1)
CALLBACK = rffi.CCallback([rffi.VOIDP, rffi.VOIDP], rffi.INT)
qsort = rffi.llexternal(
'qsort', [rffi.VOIDP, rffi.SIZE_T, rffi.SIZE_T, CALLBACK],
lltype.Void)
qsort(rffi.cast(rffi.VOIDP, a), 5, rffi.sizeof(rffi.INT), compare)
for i in range(5):
assert a[i] == i + 1
def compare(a, b):
if a[0] > b[0]:
return rffi.r_int(1)
else:
return rffi.r_int(-1)
def compare(a, b):
if a[0] > b[0]:
return rffi.r_int(1)
else:
return rffi.r_int(-1)