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C stdlib abs() Function

❮ C stdlib Library


Example

Display the absolute value of an integer:

int value = abs(-5);
printf("%d", value);
Try it Yourself »

Definition and Usage

The abs() function returns the absolute (positive) value of a number.

The abs() function is defined in the <stdlib.h> header file.

There are two other variants of the function: labs() for long int arguments and llabs() for long long int arguments.

Note: The abs() function is only intended for int type values. For float and double type values use the fabs() function instead.


Syntax

One of the following:

abs(int number);
labs(long int number);
llabs(long long int number);

Parameter Values

Parameter Description
number Required. Specifies a number.

Technical Details

Returns: abs() - An int value.
labs() - A long int value.
llabs() - A long long int value.
The returned value represents the absolute value of the specified number.

❮ C stdlib Library

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