Question

I am interested if there is any way to set default way to input numbers in C, for example xxxx.xx, like valid number for this example would be 1.00 or 1234.00, something like that.

I have searched for this in many sites, but didn’t find anything useful.

I know its rather simple task, but I am new for C so it gives me trouble 😀

Answer 1

If I understand your question correctly scanf() may be what you’re looking for.

scanf() C reference

With that function you can define the format of the input from stdin.

float f;
scanf ("%f",&f);

type: e,E,f,g,G
Floating point: Decimal number containing a decimal point, optionally
preceded by a + or – sign and optionally folowed by the e or E
character and a decimal number. Two examples of valid entries are
–732.103 and 7.12e4