multiple definitions error, what's wrong?

[dizzyelk]

I'm getting an error when I try to compile one of my headers. I'm using DevCPP, if that matters. Its a dice roller for a rouge-like I'm trying to write, taking in 2 variables in the format of XdY (for those of you who roleplay).

coding follows...

#ifndef _DICEBAG_H_
#define _DICEBAG_H_

using namespace std;

int diceroll(int numof, int numside) {
int total = 0;
for(int curroll = 0; curroll < numof; curroll++) {
total += rand() % numsides + 1;
}
return total;
}
#endif

[Emu Hater]

My coding style is completely different so its hard to tell where the problem is. However,

int diceroll(int numof, int numside) {
int total = 0;
for(int curroll = 0; curroll < numof; curroll++) {
total += rand() % numsides + 1;

the problem might be because those don't match.