<!-- GENERATED by docs/sphinx/bin/20-reference (p5) from POSIX/mod.rs. Do not edit. -->

```{index} single: POSIX::SigSet
```

# POSIX::SigSet

```{pperl-module-badges} POSIX::SigSet
```

## Functions

### Signals

#### [`new`](SigSet/new)

Create a `POSIX::SigSet` object, optionally pre-populated with the given signal numbers.

#### `addset`

Add signal `$sig` to the set.

**What you get back**

`"0 but true"` on success, `undef` on failure.

**Differences from upstream**

Fully compatible with upstream POSIX.

#### `delset`

Remove signal `$sig` from the set.

**What you get back**

`"0 but true"` on success, `undef` on failure.

**Differences from upstream**

Fully compatible with upstream POSIX.

#### `emptyset`

Remove every signal from the set.

**Differences from upstream**

Fully compatible with upstream POSIX.

#### `fillset`

Add every signal to the set.

**Differences from upstream**

Fully compatible with upstream POSIX.

#### `ismember`

Test whether signal `$sig` is in the set.

**What you get back**

`1` if the signal is a member, `0` if it is not, `-1` on error.

**Differences from upstream**

Fully compatible with upstream POSIX.

```{toctree}
:hidden:
:maxdepth: 1

SigSet/new
```