THINK++ — Engineering Visualized

Size Control

Type Modifiers

Type modifiers alter the storage size and range of basic data types. They let you optimize memory or increase capacity as needed.

signedCan hold negative & positivesigned int x = -5;

unsignedOnly non-negative values (doubles range)unsigned int x = 50000;

shortReduces storage (2 bytes)short int x = 100;

longIncreases storage (4-8 bytes)long int x = 100000;

long longMaximum integer storage (8 bytes)long long x = 1e18;

Size Comparison

short2B-32,768 to 32,767

int4B-2.1B to 2.1B

long4B-2.1B to 2.1B

long long8B±9.2 × 10¹⁸

unsigned int4B0 to 4.29B

Loading Lab...