ckcvo(input_buffer.i1a.r, start_index.i2.r, num_chars.i2.r, value.i2.r,

	This routine will convert the number of octal characters specified
	by "num_chars" from the user's byte buffer, "input_buffer", to an
	integer value in "value".  The conversion starts at the character
	position specified by "start_index" (first character is position 1).
	If a null character is encountered, the conversion will be terminated.
	If a valid conversion has been performed, the value of "error" is
	returned as zero.  Otherwise, the position of the first 'bad'
	character is returned in "error" as a negative value.

	input_buffer	input ASCII buffer
	start_index	offset index into the ASCII buffer to begin conversion
			starting at 1
	num_chars	number of ASCII characters to use
	value		returned value
	error		returned conversion status
			(0 -> successful conversion,
			 <0 -> invalid character at this position)

	This function requires the following include files:


	Related functions:

	ascii_to_numeric(_c), cvi, numeric_to_ascii(_c), cvo

	C/C++ usage:

	char	input_buffer[NUM_CHARS];
	short	start_index = 1;
	short	num_chars = NUM_CHARS;
	short	value;
	short	error;