int main(int argc, char * argv[])
{
printf("2*4 + 2*1 + 2*7 = %d \n", ComputeExpr(4,1,7));
printf("2*2 + 2*3 + 2*4 = %d \n", ComputeExpr(2,3,4));
printf("2*10 + 2*12 + 2*71 = %d \n", ComputeExpr(10,12,71));
printf("2*28 + 2*123 + 2*40 = %d \n", ComputeExpr(28,123,40));
}
enum eExprErr ComputeExpression(char *expr, int typ, BigInteger *ExpressionResult)
{
int retcode;
valueXused = FALSE;
stackIndex = 0;
exprIndex = 0;
type = typ;
retcode = ComputeExpr(expr, ExpressionResult);
if (retcode != 0) { return retcode; }
if (ExpressionResult[0].nbrLimbs > 33219 / BITS_PER_GROUP + 1) // 10000/log_10(2) = 33219
{
return EXPR_NUMBER_TOO_HIGH;
}
if (valueX.nbrLimbs > 0 && valueXused == FALSE)
{
return EXPR_VAR_OR_COUNTER_REQUIRED;
}
return 0;
}