我如何提供一个带载矢量参数的重载？

Question

我如何提供一个带载矢量参数的重载？

void res(uint8_t* buffer, int len)
{
std::vector<uint8_t> buf( buffer, buffer + len ); 
// here i want to pass buf as uint8_t* to onther func
pack((uint8_t*)buf, len));// error 
}

IntelliSense: no suitable conversion function from "std::vector<uint8_t, std::allocator<uint8_t>>" to "uint8_t *" 

Answer 1

传递第一个元素的地址.

pack(&buf[0], len);