Re: integer exponentiation with negative exponent

[Roberto Ierusalimschy <roberto@...>]

> Until twenty minutes ago that's what I thought too. But Section 3.3.5 of the 1988 draft ANSI C standard:
> 
> "If either operand is negative, whether the result of the / operator is the largest integer less than the algebraic quotient or the smallest integer greater than the algebraic quotient is implementation-defined, as is the sign of the result of the % operator.  If the quotient a/b is representable, the expression (a/b)*b + a%b shall equal a."
> 
> [...]
> 
> My head hurts.

Mine too! Now that I know it, I have seen that "C: A Reference Manual"
also says so.

-- Roberto