long

[Data Types]

Description

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.

Syntax

long var = val;

Parameters

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

Example Code

long speedOfLight_km_s = 300000L;  // see the Integer Constants page for explanation of the 'L'

See also


Language Reference Home

The text of the 86Duino reference is a modification of the Arduino reference and is licensed under a Creative Commons Attribution-ShareAlike 3.0 License. Code samples in the reference are released into the public domain.

Leave a Comment

Scroll to Top