We're heading down the slippery slope where you don't engage your brain and expect me to breadcrumb you to the answer...Originally Posted by Ravi Raj
There is no isfloat function that works on a char, because a char can't hold a floating point number (you should know this!). Instead you have two options:
1) Check each character whether it's either a digit or the only other character allowed in a floating point number (work this out yourself)
2) Try to convert the entire string to a float (by using a standard library function) and see whether you get a successful result or not
