Enter your search terms Submit search form
	Web pdp-10.trailing-edge.com

	PROGRAM ASCII

! This software is furnished under a license and may only be used
! or copied in accordance with the terms of such license.

! Copyright (C) Digital Equipment Corporation 1981, 1983

!	Version 7	ASCII.FOR

!	Basic ASCII I/O test.

	DOUBLE PRECISION D,DD,DHIGH,DLOW
	COMPLEX COMP1,COMP2
	LOGICAL LOG1,LOG2
	DOUBLE PRECISION DVAR1,DVAR2

!---	Data to be written out.

	I=1234; X=456.789; D=123456789.0123
	XLOW=456.7885; XHIGH=456.7895
	DLOW=123456789.012299995; DHIGH=123456789.012300005

!---	No OPEN statement (Implicit OPEN)

100	WRITE(20,105) I,X,D
	CLOSE(20)
	READ(20,105) II,XX,DD
	IF (I.NE.II) TYPE 110,I,II
	IF (XX.LT.XLOW .OR. XX.GT.XHIGH) TYPE 120,X,XX
	IF (DD.LT.DLOW .OR. DD.GT.DHIGH) TYPE 130,D,DD

105	FORMAT(I,F,D)
110	FORMAT(' ?Error line 100.  Implicit OPEN.',/
	1	'  I='I' II='I)
120	FORMAT(' ?Error line 100.  Implicit OPEN.',/
	1	'  X='F' XX='F)
130	FORMAT(' ?Error line 100.  Implicit OPEN.',/
	1	'  D='D' DD='D)

!---	OPEN statement, no MODE= specified.

	OPEN(UNIT=21)
200	WRITE(21,205) I,X,D
	CLOSE(21)
	OPEN(UNIT=21)
	READ(21,205) II,XX,DD
	IF (I.NE.II) TYPE 210,I,II
	IF (XX.LT.XLOW .OR. XX.GT.XHIGH) TYPE 220,X,XX
	IF (DD.LT.DLOW .OR. DD.GT.DHIGH) TYPE 230,D,DD

205	FORMAT(I,F,D)
210	FORMAT(' ?Error line 200.  Default OPEN statement.',/
	1	'  I='I' II='I)
220	FORMAT(' ?Error line 200.  Default OPEN statement.',/
	1	'  X='F' XX='F)
230	FORMAT(' ?Error line 200.  Default OPEN statement.',/
	1	'  D='D' DD='D)
	CLOSE(UNIT=21)

!---	OPEN statement with MODE= and ACCESS= specified.

	OPEN(22,MODE='ASCII',ACCESS='SEQOUT')
300	WRITE(22,305) I,X,D
	CLOSE(22)
	OPEN(22,MODE='ASCII',ACCESS='SEQIN')
	READ(22,305)
	IF (I.NE.II) TYPE 310,I,II
	IF (XX.LT.XLOW .OR. XX.GT.XHIGH) TYPE 320,X,XX
	IF (DD.LT.DLOW .OR. DD.GT.DHIGH) TYPE 330,D,DD

305	FORMAT(I,F,D)
310	FORMAT(' ?Error line 300.  MODE= and ACCESS=.',/
	1	'  I='I' II='I)
320	FORMAT(' ?Error line 300.  MODE= and ACCESS=.',/
	1	'  X='F' XX='F)
330	FORMAT(' ?Error line 300.  MODE= and ACCESS=.',/
	1	'  D='D' DD='D)
	CLOSE(22)

!---	One of each variable type in I/O

	COMP1=(1.5,-1.5)
	LOG1=.TRUE.
	IVAR1=21
	DVAR1=20.5555555555D0
	RVAR1=19.5

	WRITE(23,400) COMP1,LOG1,IVAR1,DVAR1,RVAR1
400	FORMAT(F,F,L,I,D,F)
	CLOSE(23)

	READ(23,400) COMP2,LOG2,IVAR2,DVAR2,RVAR2
	CLOSE(23)

	IERR='Complx'
	IF (COMP2 .NE. COMP1) TYPE 410, IERR,COMP1,COMP2
	IERR='Logicl'
	IF (LOG2 .NE. LOG1) TYPE 410, IERR,LOG1,LOG2
	IERR='Integr'
	IF (IVAR2 .NE. IVAR1) TYPE 410, IERR,IVAR1,IVAR2
	IERR='D Prec'
	IF (DVAR2 .NE. DVAR1) TYPE 410, IERR,DVAR1,DVAR2
	IERR='Real'
	IF (RVAR2 .NE. RVAR1) TYPE 410, IERR,RVAR1,RVAR2
410	FORMAT(' ?Error 410. 'A5' type variables 'GGGG)

	STOP 'ASCII I/O test'
	END