---
name: "std::lock_guard"
section: "3"
platform: "linux"
package: "gcc"
version: "16.2.1+r23+gd564253eb6c8-1"
release: "Arch Linux 2026-11-01"
platforms: ["linux"]
url: "https://new.carta.tech/std::lock_guard"
---

# std::lock\_guard(3)

A simple scoped lock type.

## NAME

std::lock\_guard\< \_Mutex \> - A simple scoped lock type.

## SYNOPSIS

\#include \<mutex\>

### Public Types

typedef \_Mutex **mutex\_type**\

### Public Member Functions

**lock\_guard** (const lock\_guard &)=delete\
 **lock\_guard** (mutex\_type &\_\_m)\
 **lock\_guard** (mutex\_type &\_\_m, **adopt\_lock\_t**) noexcept\
 lock\_guard & **operator=** (const lock\_guard &)=delete\

## Detailed Description

### template\<typename \_Mutex\>

class std::lock\_guard\< \_Mutex \>"A simple scoped lock type.

A lock\_guard controls mutex ownership within a scope, releasing ownership in the destructor.

**Since**

C++11

## Author

Generated automatically by Doxygen for libstdc++ from the source code.