Built-in types
int |
for whole numbers | e.g. 3276, -1, 0, 4, 20 |
float |
for real numbers | e.g. 2.703, 1.2e10, -4.0e-2 |
double |
for real numbers, greater precision | e.g. 3.141592654, 6e23, 1.6022e-19 |
char |
for character values | e.g. 'A', 'b', 'X', '9', '?' |
bool |
for logical values true and false |
Note that short int and long int are also available, and
may be represented by fewer or more bits than int.
unsigned int, short unsigned int and
long unsigned int can be used to hold zero-or-positive whole numbers.