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Abstract out verify logic for fe_half

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This commit is contained in:
Pieter Wuille
2022-11-17 11:28:49 -05:00
parent 283cd80ab4
commit 89e324c6b9
4 changed files with 23 additions and 31 deletions
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10
src/field_impl.h
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@@ -384,6 +384,16 @@ SECP256K1_INLINE static void secp256k1_fe_get_bounds(secp256k1_fe* r, int m) {
secp256k1_fe_verify(r);
}
static void secp256k1_fe_impl_half(secp256k1_fe *r);
SECP256K1_INLINE static void secp256k1_fe_half(secp256k1_fe *r) {
secp256k1_fe_verify(r);
VERIFY_CHECK(r->magnitude < 32);
secp256k1_fe_impl_half(r);
r->magnitude = (r->magnitude >> 1) + 1;
r->normalized = 0;
secp256k1_fe_verify(r);
}
#endif /* defined(VERIFY) */
#endif /* SECP256K1_FIELD_IMPL_H */