void calculator()
{
char comm[256];
int i = 1;
int c;
double total = 0;
printf("%f\n", total);
while (i)
{
printf(": ");
scanf("%[^\n]%*c", comm);
if (comm[1] != '\0')
{
msg_sender('c');
}
else if (comm[0] == 113)
{
printf("Goodbye!\n");
i = 0;
}
else if (comm[0] == 104)
{
msg_sender('h');
}
else if (comm[0] == 61)
{
total = set_value();
printf("%f\n", total);
}
else if (comm[0] == 43)
{
total = add(total);
printf("%f\n", total);
}
else if (comm[0] == 45)
{
total = subtract(total);
printf("%f\n", total);
}
else if (comm[0] == 42)
{
total = multiply(total);
printf("%f\n", total);
}
else if (comm[0] == 47)
{
total = divide(total);
printf("%f\n", total);
}
else
{
msg_sender('c');
}
}
}
double set_value()
{
double value;
int value_validity;
int i = 1;
while (i)
{
printf("= ");
value_validity = scanf("%lf", &value);
while(getchar()!='\n'){}
if (value_validity == 0)
{
msg_sender('n');
}
else
{
i = 0;
}
}
return value;
}
double divide(double total)
{
double value;
int value_validity;
int i = 1;
while (i)
{
printf("/ ");
value_validity = scanf("%lf", &value);
while(getchar()!='\n'){}
if (value_validity == 0)
{
msg_sender('n');
}
else
{
value = total / value;
i = 0;
}
}
return value;
}
void furnace_send_status() {
FurnaceStatus status = furnace_get_status();
msg_sender((const void *)&status, sizeof(FurnaceStatus));
}
