---
name: "ck_pr_load"
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_load"
---

# ck\_pr\_load(3)

atomic volatile load operations

## NAME

**ck\_pr\_load\_ptr**, **ck\_pr\_load\_double**, **ck\_pr\_load\_uint**, **ck\_pr\_load\_int**, **ck\_pr\_load\_char**, **ck\_pr\_load\_64**, **ck\_pr\_load\_32**, **ck\_pr\_load\_16**, **ck\_pr\_load\_8** – atomic volatile load operations

## LIBRARY

Concurrency Kit (libck, -lck)

## SYNOPSIS

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

*void* *\**\

**ck\_pr\_load\_ptr**(*const void \*target*);

*double*\

**ck\_pr\_load\_double**(*const double \*target*);

*unsigned* *int*\

**ck\_pr\_load\_uint**(*const unsigned int \*target*);

*int*\

**ck\_pr\_load\_int**(*const int \*target*);

*char*\

**ck\_pr\_load\_char**(*const char \*target*);

*uint64\_t*\

**ck\_pr\_load\_64**(*const uint64\_t \*target*);

*uint32\_t*\

**ck\_pr\_load\_32**(*const uint32\_t \*target*);

*uint16\_t*\

**ck\_pr\_load\_16**(*const uint16\_t \*target*);

*uint8\_t*\

**ck\_pr\_load\_8**(*const uint8\_t \*target*);

## DESCRIPTION

The **ck\_pr\_load**(*3*) family of functions atomically loads the value pointed to by *target* and returns it. This family of functions always serves as an implicit compiler barrier and is not susceptible to re-ordering by the compiler.

## RETURN VALUES

This family of functions returns the value contained in the location pointed to by the first argument.

## 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\_add(3)](/ck_pr_add/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\_dec(3)](/ck_pr_dec/3.md), [ck\_pr\_neg(3)](/ck_pr_neg/3.md), [ck\_pr\_not(3)](/ck_pr_not/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/