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Add mp_copy_integer_into function.

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Even simpler than the existing mp_add_integer_into.
This commit is contained in:
Simon Tatham
2020-02-19 19:12:32 +00:00
parent 6b27999500
commit 20a9912c7c
4 changed files with 15 additions and 3 deletions
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6
test/cryptsuite.py
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@ -349,12 +349,14 @@ class mpint(MyTestBase):
x = mp_new(mp_max_bits(initial) + 64)
# mp_{add,sub}_integer_into should be able to cope with any
# uintmax_t. Test a number that requires more than 32 bits.
# mp_{add,sub,copy}_integer_into should be able to cope with
# any uintmax_t. Test a number that requires more than 32 bits.
mp_add_integer_into(x, initial, 123123123123123)
self.assertEqual(int(x), 4444444444567567567567567)
mp_sub_integer_into(x, initial, 123123123123123)
self.assertEqual(int(x), 4444444444321321321321321)
mp_copy_integer_into(x, 123123123123123)
self.assertEqual(int(x), 123123123123123)
# mp_mul_integer_into only takes a uint16_t integer input
mp_mul_integer_into(x, initial, 10001)