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# dmd.env

nothrow bool `putenvRestorable`(const(char)[] `name`, const(char)[] `value`);
  Construct a variable from `name` and `value` and put it in the environment while saving the previous value of the environment variable into a global list so it can be restored later.
  Parameters:

  const(char)[] `name` | the name of the variable
  const(char)[] `value` | the value of the variable

  Returns:
  true on error, false on success
nothrow string `allocNameValue`(const(char)[] `name`, const(char)[] `value`);
  Allocate a new variable via xmalloc that can be added to the global environment. The resulting string will be null-terminated immediately after the end of the array.
  Parameters:

  const(char)[] `name` | name of the variable
  const(char)[] `value` | value of the variable

  Returns:
  a newly allocated variable that can be added to the global environment
void `restoreEnvVars`();
  Restore the original environment.
nothrow void `saveEnvVar`(const(char)[] `name`);
  Save the environment variable `name` if not saved already.

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