pub fn listenv() -> Vec<OsString>Expand description
Gets the names of all variables set in the environment.
Programs that want to be portable to Windows should typically use
this function and getenv() instead of using the environ array
from the C library directly. On Windows, the strings in the environ
array are in system codepage encoding, while in most of the typical
use cases for environment variables in GLib-using programs you want
the UTF-8 encoding that this function and getenv() provide.
Returns
a None-terminated list of strings which must be freed with
g_strfreev().