Data types

[Samuel Thomas]

Hello everybody,

Could somebody help me with the basic data types we have. I am always
getting confused. Can I write the datatypes in ascending order like
this?

char --> int --> short --> long

float --> double

Are there any other relations? Could somebody tell me more about the
size of these data types?

Sorry for asking such a stupid qn

Thanks for all the help
Sam

 

[Derk Gwen]

(e-mail address removed) (Samuel Thomas) wrote:
# Hello everybody,
#
# Could somebody help me with the basic data types we have. I am always
# getting confused. Can I write the datatypes in ascending order like
# this?
#
# char --> int --> short --> long
#
# float --> double
#
# Are there any other relations? Could somebody tell me more about the
# size of these data types?

In 1989 there were three possible semilatticess

long double: double, float, long unsigned, long int, unsigned, int
double: float, long unsigned, long int, unsigned, int
float: long unsigned, long int, unsigned, int
long unsigned: long int, unsigned, int

long int: unsigned, int
unsigned: int
OR
unsigned: int, long int
long int: unsigned, int
OR
long int: int
unsigned: int

int: (short int, short unsigned, char, signed char, unsigned char)

 

[Keith Thompson]

On 24 Jul 2003 22:16:33 -0700,


and long double for C99.

long double is defined in C90. (In many implementations, double and
long double have the same representation.)