pub unsafe extern fn dgemqrt_(side: *const c_char,
trans: *const c_char,
m: *const lapack_int,
n: *const lapack_int,
k: *const lapack_int,
nb: *const lapack_int,
v: *const c_double,
ldv: *const lapack_int,
t: *const c_double,
ldt: *const lapack_int,
c: *mut c_double,
ldc: *const lapack_int,
work: *mut c_double,
info: *mut lapack_int)