[Data Types]


Long variables are extended size variables for number storage, and store 32 bits (4 bytes), from -2,147,483,648 to 2,147,483,647.

If doing math with integers, at least one of the numbers must be followed by an L, forcing it to be a long. See the Integer Constants page for details.


long var = val;


var: variable name
val: the value assigned to the variable

Example Code

long speedOfLight = 186000L;  // see the Integer Constants page for explanation of the 'L'

See also

  • Language String()

  • Language array

  • Language bool

  • Language boolean

  • Language byte

  • Language char

  • Language double

  • Language float

  • Language int

  • Language short

  • Language size_t

  • Language string

  • Language unsigned char

  • Language unsigned int

  • Language unsigned long

  • Language void

  • Language word