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# Copyright(c) 1986 Association of Universities for Research in Astronomy Inc.
# NCGCHR -- Get a single character (byte) from a packed array. Return
# a blank if the index is out of bounds.
procedure ncgchr (ichars, len_ichars, index, char_value)
int ichars[ARB] # packed character array
int len_ichars # length of the array
int index # index of char to be extracted
int char_value # return value
char ch
begin
if (index < 1 || index > len_ichars)
char_value = ' '
else {
call chrupk (ichars, index, ch, 1, 1)
char_value = ch
}
end
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