pub unsafe extern "C" fn cher2_(
uplo: *const c_char,
n: *const c_int,
alpha: *const c_float_complex,
x: *const c_float_complex,
incx: *const c_int,
y: *const c_float_complex,
incy: *const c_int,
a: *mut c_float_complex,
lda: *const c_int,
)