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*** Some random stuff for testing libU77. Should be done better. It's
* hard to test things where you can't guarantee the result. Have a
* good squint at what it prints, though detected errors will cause
* starred messages.
implicit none
integer i, j, k, ltarray (9), idat (3), count, rate, count_max,
+ pid, mask
real tarray1(2), tarray2(2), r1, r2, sum
intrinsic getpid, getuid, getgid, ierrno, gerror,
+ fnum, isatty, getarg, access, unlink, fstat,
+ stat, lstat, getcwd, gmtime, hostnm, etime, chmod,
+ chdir, fgetc, fputc, system_clock, second, idate, secnds,
+ time, ctime, fdate, ttynam, date_and_time
external lenstr
integer lenstr
logical l
character gerr*80, c*1
character ctim*25, line*80, lognam*20, wd*100, line2*80, ddate*8,
+ ttime*10, zone*5
integer fstatb (13), statb (13)
integer *2 i2zero
integer values(8)
ctim = ctime(time())
WRITE (6,'(A/)') '1 GNU libU77 test at: ' // ctim
write (6,'(A,I3,'', '',I3)')
+ ' Logical units 5 and 6 correspond (FNUM) to'
+ // ' Unix i/o units ', fnum(5), fnum(6)
if (lnblnk('foo ').ne.3 .or. len_trim('foo ').ne.3) then
print *, 'LNBLNK or LEN_TRIM failed'
call exit(1)
end if
l= isatty(6)
line2 = ttynam(6)
if (l) then
line = 'and 6 is a tty device (ISATTY) named '//line2
else
line = 'and 6 isn''t a tty device (ISATTY)'
end if
write (6,'(1X,A)') line(:lenstr(line))
pid = getpid()
WRITE (6,'(A,I10)') ' Process id (GETPID): ', pid
WRITE (6,'(A,I10)') ' User id (GETUID): ', GETUID ()
WRITE (6,'(A,I10)') ' Group id (GETGID): ', GETGID ()
WRITE (6, *) 'If you have the `id'' program, the following call'
write (6, *) 'of SYSTEM should agree with the above:'
call flush(6)
CALL SYSTEM ('echo " " `id`')
call flush
lognam = 'blahblahblah'
call getlog (lognam)
write (6,*) 'Login name (GETLOG): ', lognam
call umask(0, mask)
write(6,*) 'UMASK returns', mask
call umask(mask)
ctim = fdate()
write (6,*) 'FDATE returns: ', ctim
j=time()
call ltime (j, ltarray)
write (6,'(1x,a,9i4)') 'LTIME returns:', ltarray
call gmtime (j, ltarray)
write (6,'(1x,a,9i4)') 'GMTIME returns:', ltarray
call system_clock(count) ! omitting optional args
call system_clock(count, rate, count_max)
write(6,*) 'SYSTEM_CLOCK returns: ', count, rate, count_max
call date_and_time(ddate) ! omitting optional args
call date_and_time(ddate, ttime, zone, values)
write(6, *) 'DATE_AND_TIME returns: ', ddate, ' ', ttime, ' ',
+ zone, ' ', values
write (6,*) 'Sleeping for 1 second (SLEEP) ...'
call sleep (1)
c consistency-check etime vs. dtime for first call
r1 = etime (tarray1)
if (r1.ne.tarray1(1)+tarray1(2))
+ write (6,*) '*** ETIME didn''t return sum of the array: ',
+ r1, ' /= ', tarray1(1), '+', tarray1(2)
r2 = dtime (tarray2)
if (abs (r1-r2).gt.1.0) write (6,*)
+ 'Results of ETIME and DTIME differ by more than a second:',
+ r1, r2
call sgladd (sum, tarray1(1), tarray1(2))
if (r1 .ne. sum)
+ write (6,*) '*** ETIME didn''t return sum of the array: ',
+ r1, ' /= ', tarray1(1), '+', tarray1(2)
call sgladd (sum, tarray2(1), tarray2(2))
if (r2 .ne. sum)
+ write (6,*) '*** DTIME didn''t return sum of the array: ',
+ r2, ' /= ', tarray2(1), '+', tarray2(2)
write (6, '(A,3F10.3)')
+ ' Elapsed total, user, system time (ETIME): ',
+ r1, tarray1
c now try to get times to change enough to see in etime/dtime
write (6,*) 'Looping until clock ticks at least once...'
do i = 1,1000
do j = 1,1000
end do
r2 = dtime (tarray2)
if (tarray2(1) .ne. 0. .or. tarray2(2) .ne. 0.) exit
end do
r1 = etime (tarray1)
call sgladd (sum, tarray1(1), tarray1(2))
if (r1 .ne. sum)
+ write (6,*) '*** ETIME didn''t return sum of the array: ',
+ r1, ' /= ', tarray1(1), '+', tarray1(2)
call sgladd (sum, tarray2(1), tarray2(2))
if (r2 .ne. sum)
+ write (6,*) '*** DTIME didn''t return sum of the array: ',
+ r2, ' /= ', tarray2(1), '+', tarray2(2)
write (6, '(A,3F10.3)')
+ ' Differences in total, user, system time (DTIME): ',
+ r2, tarray2
write (6, '(A,3F10.3)')
+ ' Elapsed total, user, system time (ETIME): ',
+ r1, tarray1
write (6, *) '(Clock-tick detected after ', i, ' 1K loops.)'
call idate (i,j,k)
call idate (idat)
write (6,*) 'IDATE d,m,y: ',idat
print *, '... and the VXT version: ', i,j,k
call time(line(:8))
print *, 'TIME: ', line(:8)
write (6,*) 'SECNDS(0.0) returns: ',secnds(0.0)
write (6,*) 'SECOND returns: ', second()
call dumdum(r1)
call second(r1)
write (6,*) 'CALL SECOND returns: ', r1
i = getcwd(wd)
if (i.ne.0) then
call perror ('*** getcwd')
else
write (6,*) 'Current directory is "'//wd(:lenstr(wd))//'"'
end if
call chdir ('.',i)
if (i.ne.0) write (6,*) '***CHDIR to ".": ', i
i=hostnm(wd)
if(i.ne.0) then
call perror ('*** hostnm')
else
write (6,*) 'Host name is ', wd(:lenstr(wd))
end if
i = access('/dev/null ', 'rw')
if (i.ne.0) write (6,*) '***Read/write ACCESS to /dev/null: ', i
write (6,*) 'Creating file "foo" for testing...'
open (3,file='foo',status='UNKNOWN')
rewind 3
call fputc(3, 'c',i)
call fputc(3, 'd',j)
if (i+j.ne.0) write(6,*) '***FPUTC: ', i
C why is it necessary to reopen? (who wrote this?)
C the better to test with, my dear! (-- burley)
close(3)
open(3,file='foo',status='old')
call fseek(3,0,0,*10)
go to 20
10 write(6,*) '***FSEEK failed'
20 call fgetc(3, c,i)
if (i.ne.0) write(6,*) '***FGETC: ', i
if (c.ne.'c') write(6,*) '***FGETC read the wrong thing: ',
+ ichar(c)
i= ftell(3)
if (i.ne.1) write(6,*) '***FTELL offset: ', i
call chmod ('foo', 'a+w',i)
if (i.ne.0) write (6,*) '***CHMOD of "foo": ', i
i = fstat (3, fstatb)
if (i.ne.0) write (6,*) '***FSTAT of "foo": ', i
i = stat ('foo', statb)
if (i.ne.0) write (6,*) '***STAT of "foo": ', i
write (6,*) ' with stat array ', statb
if (statb(5).ne.getuid () .or. statb(6).ne.getgid() .or. statb(4)
+ .ne. 1) write (6,*) '*** FSTAT uid, gid or nlink is wrong'
do i=1,13
if (fstatb (i) .ne. statb (i))
+ write (6,*) '*** FSTAT and STAT don''t agree on '// '
+ array element ', i, ' value ', fstatb (i), statb (i)
end do
i = lstat ('foo', fstatb)
do i=1,13
if (fstatb (i) .ne. statb (i))
+ write (6,*) '*** LSTAT and STAT don''t agree on '// '
+ array element ', i, ' value ', fstatb (i), statb (i)
end do
C in case it exists already:
call unlink ('bar',i)
call link ('foo ', 'bar ',i)
if (i.ne.0)
+ write (6,*) '***LINK "foo" to "bar" failed: ', i
call unlink ('foo',i)
if (i.ne.0) write (6,*) '***UNLINK "foo" failed: ', i
call unlink ('foo',i)
if (i.eq.0) write (6,*) '***UNLINK "foo" again: ', i
call gerror (gerr)
i = ierrno()
write (6,'(A,I3,A/1X,A)') ' The current error number is: ',
+ i,
+ ' and the corresponding message is:', gerr(:lenstr(gerr))
write (6,*) 'This is sent to stderr prefixed by the program name'
call getarg (0, line)
call perror (line (:lenstr (line)))
call unlink ('bar')
WRITE (6,*) 'You should see exit status 1'
CALL EXIT(1)
99 END
integer function lenstr (str)
C return length of STR not including trailing blanks, but always
C return >0
character *(*) str
if (str.eq.' ') then
lenstr=1
else
lenstr = lnblnk (str)
end if
end
* just make sure SECOND() doesn't "magically" work the second time.
subroutine dumdum(r)
r = 3.14159
end
* do an add that is most likely to be done in single precision.
subroutine sgladd(sum,left,right)
implicit none
real sum,left,right
sum = left+right
end
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