What is %.2f? Why is it not just %f? Is there some additional calculation happening? The half function already does all the calculations including splitting the bill, so I’m not sure what %.2f is. (Btw why is this code not formatting correctly in lemmy?)
#include
#include
float half(float bill, float tax, int tip);
int main(void)
{
float bill_amount = get_float("Bill before tax and tip: ");
float tax_percent = get_float("Sale Tax Percent: ");
int tip_percent = get_int("Tip percent: ");
printf("You will owe $%.2f each!\n", half(bill_amount, tax_percent, tip_percent));
}
// TODO: Complete the function
float half(float bill, float tax, int tip)
{
bill += (bill * (tax / 100.0));
bill += (bill * (tip / 100.0));
bill /= 2;
return bill;
}
Wouldn’t
man 3 printf
do the same thing without the quotes?Yup that definitely does the same thing.
If anyone else is wondering why the
3
is there, it’s because usually you won’t find just oneprintf
. You have theprintf
user command, theprintf
function from the standard C library, and POSIX manual entries for both theprintf
user command and C function. The id number is then an identifier for the corresponding section of theprintf
entry, and you can list all of them by doing aman -f printf
.Awesome, I think I’m gonna consider aliasing
man
toman -f
lol. Can you think of any compelling reason not to?Actually, nevermind, I misunderstood you.
-f
just lists the pages, it doesn’t print all of their content.Nit: 3 is the manual section in which to look for the named entry (aka page), not a section of the entry.
Wrote it in an awkward way but yeah I meant to say the section where you can find the corresponding entry 😬