BIP0340_SIGLEN
#define BIP0340_MAX_SIGLEN BIP0340_SIGLEN(CURVES_MAX_P_BIT_LEN, CURVES_MAX_Q_BIT_LEN)
MUST_HAVE((siglen == BIP0340_SIGLEN(p_bit_len, q_bit_len)), ret, err);
(*siglen) = (u8)BIP0340_SIGLEN(p_bit_len, q_bit_len);
MUST_HAVE((siglen == BIP0340_SIGLEN(p_bit_len, q_bit_len)), ret, err);
MUST_HAVE((siglen == BIP0340_SIGLEN(p_bit_len, q_bit_len)), ret, err);
MUST_HAVE((siglen == BIP0340_SIGLEN(p_bit_len, q_bit_len)), ret, err);