AFF_PT_EDWARDS_MAGIC
pt->magic = AFF_PT_EDWARDS_MAGIC;
MUST_HAVE(((in != NULL) && (in->magic == AFF_PT_EDWARDS_MAGIC)), ret, err);
in->magic = AFF_PT_EDWARDS_MAGIC;
if ((in != NULL) && (in->magic == AFF_PT_EDWARDS_MAGIC) && (in->crv != NULL)) {