Returns a nonzero integer if the argument is any lower- or uppercase letter or 0-9 digit. Otherwise, it returns the integer 0.

BUFSIZ is a constant macro representing the size of the input buffer. It is defined in stdio.h and represents the size for your C implementa...

The ANSI C standard says that the result is "implementation defined." This means that ANSI C has no hard and fast rule, therefore,...

C puts a decimal point at the end and converts the method of storage to exponential binary form and store the result in the variable's m...

C cuts off the fractional part of the real value, converts the remaining part to int, and stores the result in 2's complement binary for...