---
name: "SDL_setenv_unsafe"
section: "3"
platform: "linux"
package: "libsdl3-doc"
version: "3.2.10+ds-1"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/SDL_setenv_unsafe"
---

# SDL\_setenv\_unsafe(3)

Set the value of a variable in the environment.

## NAME

SDL\_setenv\_unsafe - Set the value of a variable in the environment.

## HEADER FILE

Defined in SDL3/SDL\_stdinc.h

## SYNOPSIS

```
#include "SDL3/SDL.h"
```

**int SDL\_setenv\_unsafe(const char \*name, const char \*value, int overwrite);**

## FUNCTION PARAMETERS

- *name*

  the name of the variable to set.

- *value*

  the value of the variable to set.

- *overwrite*

  1 to overwrite the variable if it exists, 0 to return success without setting the variable if it already exists.

## RETURN VALUE

Returns 0 on success, -1 on error.

## THREAD SAFETY

This function is not thread safe, consider using

**SDL\_SetEnvironmentVariable** () instead.

## AVAILABILITY

This function is available since SDL 3.2.0.

## SEE ALSO

**•**(3), [**SDL\_SetEnvironmentVariable**(3)](/SDL_SetEnvironmentVariable/3.md)