nstd_env_remove_var

nstd_sys::env

Function nstd_env_remove_var 

Source 
#[unsafe(no_mangle)]
pub unsafe extern "C" fn nstd_env_remove_var(key: &NSTDStr)
Available on crate feature 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.