---
name: "im_shiftleft"
section: "3"
platform: "linux"
package: "libvips-dev"
version: "7.20.7-1+b3"
release: "Debian 6.0 (Squeeze)"
platforms: ["linux"]
url: "https://new.carta.tech/im_shiftleft"
---

# im\_shiftleft(3)

bit shift operations

## NAME

im\_shiftleft, im\_shiftright - bit shift operations

## SYNOPSIS

**#include \<vips/vips.h\>**

**int im\_shiftleft( in, out, n )**\
 **IMAGE \*in, \*out;**\
 **int n;**

**int im\_shiftright( in, out, n )**\
 **IMAGE \*in, \*out;**\
 **int n;**

## DESCRIPTION

Shift integer images n bits left or right. Shifts on signed images are sign-preserving.

## RETURN VALUE

All functions return 0 on success and -1 on error.

## SEE ALSO

[im\_ifthenelse(3)](/im_ifthenelse/3.md), [im\_equal(3)](/im_equal/3.md), [im\_andimage(3)](/im_andimage/3.md).

## COPYRIGHT

National Gallery, 1992

## AUTHOR

J. Cupitt