Data Types- their sizes and ranges

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** This is compiler dependant- see your compiler docs for your actual values

16-bit data types, sizes, and ranges

Type	Bits	Value Range	Typical Usage
unsigned char	8	0 to 255	Small numbers and full PC character set
char	8	-128 to 127	Very small numbers and ASCII characters
enum	16	-32,768 to 32,767	Ordered sets of values
unsigned int	16	0 to 65,535	Larger numbers and loops
short int	16	-32,768 to 32,767	Counting, small numbers, loop control
int	16	-32,768 to 32,767	Counting, small numbers, loop control
unsigned long	32	0 to 4,294,967,295	Astronomical distances
long	32	-2,147,483,648 to 2,147,483,647	Large numbers, populations
float	32	3.4 ^ 10-38 to 3.4 ^ 1038	Scientific (7-digit precision)
double	64	1.7 ^ 10-308 to 1.7 ^ 10308	Scientific (15-digit precision)
long double	80	3.4 ^ 10-4932 to 1.1 ^ 104932	Financial (18-digit precision)
near pointer	16	Not applicable	Manipulating memory addresses
far pointer	32	Not applicable	Manipulating addresses outside current segment

32-bit data types, sizes, and ranges

Type	Bits	Value Range	Typical Usage
unsigned char	8	0 to 255	Small numbers and full PC character set
char	8	-128 to 127	Very small numbers and ASCII characters
short int	16	-32,768 to 32,767	Counting, small numbers, loop control
unsigned int	32	0 to 4,294,967,295	Large numbers and loops
int	32	-2,147,483,648 to 2,147,483,647	Counting, small numbers, loop control
unsigned long	32	0 to 4,294,967,295	Astronomical distances
enum	32	-2,147,483,648 to 2,147,483,647	Ordered sets of values
long	32	-2,147,483,648 to 2,147,483,647	Large numbers, populations
float	32	3.4 ^ 10-38 to 3.4 ^ 1038	Scientific (7-digit precision)
double	64	1.7 ^ 10-308 to 1.7 ^ 10308	Scientific (15-digit precision)
long double	80	3.4 ^ 10-4932 to 1.1 ^ 104932	Financial (18-digit precision)

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