[pdf-devel] Divison by zero in type 4 functions

[gerel]

Hi all,

If I understand correctly the following lines (1498 and 1511) from pdf-fp-func.c
aren't considering the case when "stack[sp] == 0".
##
        case OPC_div:
          if (sp < 1) goto stack_underflow;
          stack[sp-1] /= stack[sp];
          sp--;
          break;

[...]

        case OPC_idiv:
          if (sp < 1) goto stack_underflow;
          if (!INT_P(stack[sp]) || !INT_P(stack[sp-1]))
            goto type_error;
          stack[sp-1] = INT(stack[sp]) / INT(stack[sp-1]);
          sp--;
          break;
###


Is that a bug ?

regards,
-gerel