---
name: "ck_pr_not"
section: "3"
platform: "linux"
package: "libck-dev"
version: "0.7.2-6"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/ck_pr_not"
---

# ck\_pr\_not(3)

atomic complement operations

## NAME

**ck\_pr\_not\_ptr**, **ck\_pr\_not\_double**, **ck\_pr\_not\_char**, **ck\_pr\_not\_uint**, **ck\_pr\_not\_int**, **ck\_pr\_not\_64**, **ck\_pr\_not\_32**, **ck\_pr\_not\_16**, **ck\_pr\_not\_8** – atomic complement operations

## LIBRARY

Concurrency Kit (libck, -lck)

## SYNOPSIS

**#include \<ck\_pr.h\>**

*void*\

**ck\_pr\_not\_ptr**(*void \*target*);

*void*\

**ck\_pr\_not\_double**(*double \*target*);

*void*\

**ck\_pr\_not\_char**(*char \*target*);

*void*\

**ck\_pr\_not\_uint**(*unsigned int \*target*);

*void*\

**ck\_pr\_not\_int**(*int \*target*);

*void*\

**ck\_pr\_not\_64**(*uint64\_t \*target*);

*void*\

**ck\_pr\_not\_32**(*uint32\_t \*target*);

*void*\

**ck\_pr\_not\_16**(*uint16\_t \*target*);

*void*\

**ck\_pr\_not\_8**(*uint8\_t \*target*);

## DESCRIPTION

The **ck\_pr\_not**(*3*) family of functions atomically complement the value pointed to by *target*.

## RETURN VALUES

These functions have no return value.

## SEE ALSO

[ck\_pr\_fence\_load(3)](/ck_pr_fence_load/3.md), [ck\_pr\_fence\_load\_depends(3)](/ck_pr_fence_load_depends/3.md), [ck\_pr\_fence\_store(3)](/ck_pr_fence_store/3.md), [ck\_pr\_fence\_memory(3)](/ck_pr_fence_memory/3.md), [ck\_pr\_load(3)](/ck_pr_load/3.md), [ck\_pr\_store(3)](/ck_pr_store/3.md), [ck\_pr\_fas(3)](/ck_pr_fas/3.md), [ck\_pr\_faa(3)](/ck_pr_faa/3.md), [ck\_pr\_inc(3)](/ck_pr_inc/3.md), [ck\_pr\_not(3)](/ck_pr_not/3.md), [ck\_pr\_neg(3)](/ck_pr_neg/3.md), [ck\_pr\_add(3)](/ck_pr_add/3.md), [ck\_pr\_sub(3)](/ck_pr_sub/3.md), [ck\_pr\_and(3)](/ck_pr_and/3.md), [ck\_pr\_or(3)](/ck_pr_or/3.md), [ck\_pr\_xor(3)](/ck_pr_xor/3.md), [ck\_pr\_cas(3)](/ck_pr_cas/3.md), [ck\_pr\_btc(3)](/ck_pr_btc/3.md), [ck\_pr\_bts(3)](/ck_pr_bts/3.md), [ck\_pr\_btr(3)](/ck_pr_btr/3.md)

Additional information available at http://concurrencykit.org/