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N_ENVLEN()


Returns

Number of bytes used in the root environment, including trailing null 
bytes.


Description

Only the actual number of characters in the root environment string is 
returned. Use N_ENVSIZ() to get the size of the root environment's 
space.


Example

? 'Amount of environment space left: ', N_ENVSIZ() - N_ENVLEN()

// Add a drive to path
cNewPath := 'L:\PROJECT\DATA'
IF N_ENVLEN() + LEN(cNewPath) < N_ENVSIZ()
  current_path = N_GETENV('PATH')
  N_MODENV('PATH', current_path + cNewPath)
ELSE
  ? 'Warning: Out of environment space'
ENDIF