pub unsafe extern fn dtprfb_(side: *const c_char,
trans: *const c_char,
direct: *const c_char,
storev: *const c_char,
m: *const lapack_int,
n: *const lapack_int,
k: *const lapack_int,
l: *const lapack_int,
v: *const c_double,
ldv: *const lapack_int,
t: *const c_double,
ldt: *const lapack_int,
a: *mut c_double,
lda: *const lapack_int,
b: *mut c_double,
ldb: *const lapack_int,
work: *const c_double,
ldwork: *const lapack_int)