C+
C NAME:
C	lowercase
C PURPOSE:
C	Convert string to lowercase
C CATEGORY:
C	String manipulation
C CALLING SEQUENCE:
	subroutine lowercase(C)
C INPUTS:
C	C		character*(*)	string to be processed
C OUTPUTS:
C	C		character*(*)	modified string
C SEE ALSO:
C	uppercase, itrim, icompress, iwhitespace, bCompareStr
C PROCEDURE:
C	Each character in the string is converted separately.
C	The intrinsic FORTRAN functions ICHAR is used to find the ASCII code
C	for the character. For uppercase characters (ASCII code 65-90) 32 is added
C	to the ASCII code. The FORTRAN function CHAR is used to convert the
C	corrected code back to an character.
C MODIFICATION HISTORY:
C	JAN-1992, Paul Hick (UCSD)
C-
	    character C*(*)

	iA = ichar('A')
	iZ = ichar('Z')
	iOff = ichar('a')-ichar('A')
	do I=1,len(C)
	    J = ichar(C(I:I))
	    if (J .ge. iA .and. J .le. iZ) C(I:I) = char(J+iOff)
	end do
	return
	end