Module env 

Environment variables

This module is only available with libc feature

Note that it limits environment variable names to 1024, and asserts in debug mod against using bigger names.

Required features:

• memory

Enums

EnvError

Possible errors when getting environment variable.

Functions

get_var

Gets environment variable using getenv

set_var

Sets environment variable using setenv.

unset_var

Unsets environment variable using unsetenv.