Function leptonica_sys::l_productMat4

pub unsafe extern "C" fn l_productMat4(
    mat1: *mut l_float32, 
    mat2: *mut l_float32, 
    mat3: *mut l_float32, 
    mat4: *mut l_float32, 
    matd: *mut l_float32, 
    size: l_int32
) -> l_ok