Function envmnt::get_u64

source · [−]
pub fn get_u64<K: AsRef<OsStr>>(key: K, default_value: u64) -> u64
Expand description

Returns the environment variable value or a default value in case the variable is not defined or cannot be parsed.

Arguments

  • key - The environment variable name
  • default_value - Returned if the variable does not exist or cannot be parsed