---
name: "memchr_inv"
section: "9"
platform: "linux"
package: "linux-manual-4.9"
version: "4.9.228-1"
release: "Debian 9 (Stretch)"
platforms: ["linux"]
url: "https://new.carta.tech/memchr_inv"
---

# memchr\_inv(9)

Find an unmatching character in an area of memory.

## NAME

memchr\_inv - Find an unmatching character in an area of memory.

## SYNOPSIS

**void \* memchr\_inv(const void \*** *start***, int** *c***, size\_t** *bytes***);**

## ARGUMENTS

*start*

The memory area

*c*

Find a character other than c

*bytes*

The size of the area.

## DESCRIPTION

returns the address of the first character other than *c*, or **NULL** if the whole buffer contains just *c*.

## COPYRIGHT