Function nstd_sys::env::nstd_env_remove_var

source · 
#[no_mangle]
pub unsafe extern "C" fn nstd_env_remove_var(key: &NSTDStr)
Available on crate feature nstd_env only.
Expand description

Removes an environment variable from the current process.

Parameters:

  • const NSTDStr *key - The environment variable’s identification key.

Panics

This operation will panic in the following situations:

  • key is empty or contains either of the following ASCII characters: '=' or '\0'.

  • The environment variable’s value contains the ASCII null character '\0'.

Safety

The user of this function must ensure that key is valid for reads.