VECTOR_LENGTH
.vec1_len = VECTOR_LENGTH(sizeof(struct option_vector1)),
.vec2_len = VECTOR_LENGTH(sizeof(struct option_vector2)),
.vec3_len = VECTOR_LENGTH(sizeof(struct option_vector3)),
.vec4_len = VECTOR_LENGTH(sizeof(struct option_vector4)),
.vec5_len = VECTOR_LENGTH(sizeof(struct option_vector5)),
.vec6_len = VECTOR_LENGTH(sizeof(struct option_vector6)),
.vec7_len = VECTOR_LENGTH(sizeof(struct option_vector7)),