> For the complete documentation index, see [llms.txt](https://book.bsdcn.org/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://book.bsdcn.org/man/pthread/pthread_equal.3.md).

# pthread\_equal.3

`pthread_equal` — 比较线程 ID

## 名称

`pthread_equal`

## 库

libpthread

## 概要

```c
#include <pthread.h>

int
pthread_equal(pthread_t t1, pthread_t t2);
```

## 描述

`pthread_equal` 函数比较线程 ID `t1` 和 `t2`。

## 返回值

如果线程 ID `t1` 和 `t2` 对应同一个线程，`pthread_equal` 函数将返回非零值；否则返回零。

## 错误

无。

## 参见

[pthread\_create(3)](/man/pthread/pthread_create.3.md), [pthread\_exit(3)](https://github.com/FreeBSD-Ask/freebsd-man-sc/blob/main/man3/pthread_exit.3.md)

## 标准

`pthread_equal` 函数符合 ISO/IEC 9945-1:1996 ("POSIX.1") 规范。


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