C++ - Invalid narrowing conversion from “int” to “unsigned char”

Question

I am trying to to create a vector that contains a static_cast of an interger value as so:

int code = 52;
std::vector<uint8_t> data1 = { 4, 1, 0, 0, 0, 0, 224 + static_cast<uint8_t>(code / 16), static_cast<uint8_t>(code % 16) };

However I am hitting the error:

Invalid narrowing conversion from "int" to "unsigned char"

Can anyone advise why this is?

Thanks

Answer 1

You shall use static_cast to do it. Something like,

static_cast<uint8_t>(224 + code / 16)