Hard to be sure because your question isn’t very clear. But perhaps this is what you want uint16_t z = *reinterpret_cast<uint16_t*>(array); Another possiblity is uint16_t z = static_cast<uint8_t>(buf[0])*256 + static_cast<uint8_t>(buf[1]); and another is uint16_t z = static_cast<uint8_t>(buf[1])*256 + static_cast<uint8_t>(buf[0]); Try them all, they differ only in what endianness they use. You should look that up. … Read more
Why does any combination of true and false return the value it does? There is no combination of any boolean here. This ?: operator returns first or second expression, not the condition itself. condition ? first_expression : second_expression; The condition must evaluate to true or false. If condition is true, first_expression is evaluated and becomes … Read more
In integer math, 5/9 is 0, remainder 5. You want 5.0/9.0 instead. In C, what you do with a result has no effect on how it’s computed. So even though c is a float and you are storing the result of the math in a float, the math is still integer math because 5, 9, … Read more
As the comments and answer suggest, this is a bitwise operator. Bitwise operators treat their operands as groups of bits when they operate on them. A bitwise and will, as I’m sure you could guess, and two bits, so a truth table would look like: A | B | A & B —|—|—— 0 | … Read more