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