pub unsafe extern "C" fn cgbmv_(
trans: *const c_char,
m: *const c_int,
n: *const c_int,
kl: *const c_int,
ku: *const c_int,
alpha: *const complex_float,
a: *const complex_float,
lda: *const c_int,
x: *const complex_float,
incx: *const c_int,
beta: *const complex_float,
y: *mut complex_float,
incy: *const c_int
)