py/mpz: Strip trailing zeros from mpz value when set from bytes.

dpgeorge · dpgeorge · commit c7aa86ce6f17 · 2017-04-25T12:06:10.000+10:00
diff --git a/py/mpz.c b/py/mpz.c
@@ -938,6 +938,8 @@ void mpz_set_from_bytes(mpz_t *z, bool big_endian, size_t len, const byte *buf)
         #endif
         num_bits -= DIG_SIZE;
     }
+
+    z->len = mpn_remove_trailing_zeros(z->dig, z->dig + z->len);
 }
 
 bool mpz_is_zero(const mpz_t *z) {

Original file line number	Diff line number	Diff line change
`@@ -938,6 +938,8 @@ void mpz_set_from_bytes(mpz_t z, bool big_endian, size_t len, const byte buf)`
`938`	`938`	`#endif`
`939`	`939`	`num_bits -= DIG_SIZE;`
`940`	`940`	`}`
	`941`	`+`
	`942`	`+ z->len = mpn_remove_trailing_zeros(z->dig, z->dig + z->len);`
`941`	`943`	`}`
`942`	`944`
`943`	`945`	`bool mpz_is_zero(const mpz_t *z) {`