pub unsafe extern fn sptrfs_(n: *const lapack_int,
nrhs: *const lapack_int,
d: *const c_float,
e: *const c_float,
df: *const c_float,
ef: *const c_float,
b: *const c_float,
ldb: *const lapack_int,
x: *mut c_float,
ldx: *const lapack_int,
ferr: *mut c_float,
berr: *mut c_float,
work: *mut c_float,
info: *mut lapack_int)