For negative numbers presumably we need to d++ for the minus sign, no? Borislav Petkov <[email protected]> wrote: >On Sat, Sep 28, 2013 at 09:58:33PM +0200, Ingo Molnar wrote: >> >> * Borislav Petkov <[email protected]> wrote: >> >> > On Sat, Sep 28, 2013 at 09:49:27PM +0200, Borislav Petkov wrote: >> > > And yes, that one works too. >> > >> > Btw, just to be thorough, we could handle negative numbers too: >> > >> > int num_digits(int val) >> > { >> > int m = 10; >> > int d = 1; >> > >> > if (val < 0) >> > val = -val; >> > >> > while (val >= m) { >> > m *= 10; >> > d++; >> > } >> > >> > return d; >> > } >> >> I like the cell phone version better! > >This *is* the cell phone version + negative numbers handling.
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