Floats as indices

[nnxen]

I'm having a problem with the following calculation in a line of code:

10^(dB/20)

...where dB is a float. I get Error: Expression must have integral or enum type.

How can I get around this?
Thanks in advance.

[Peter87]

^ is the bitwise xor operator in C++. Use std::pow in <cmath> instead.

[majidkamali1370]

^ is the bitwise xor operator in C++. Use std::pow in <cmath> instead.

Or you can overload that operator, while this is not recommended.

[Zhuge]

You aren't allowed to overload operators to where both operands are primitive types.

[Jackson Marie]

You should put

dB/20

into a temp variable.

int temp = dB/20;
... = 10 ^ temp;

[majidkamali1370]

You aren't allowed to overload operators to where both operands are primitive types.

Thanks, I didn't know that ;)

[ne555]

Also, precedence rules.

[hiw]

You aren't allowed to overload operators to where both operands are primitive types.

for majidkamali 1370

Actually, it is useless when both operands are primitive types