long

[Data Types]

説明

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] byte
• [Language] int
• [Language] unsigned int
• [Language] unsigned long
• [Language] Integer Constants
• [Language] Variable Declaration

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