re PR fortran/56743 (Namelist bug with comment and no blank)

2015-04-21 Jerry DeLisle  <jvdelisle@gcc.gnu.org>

	PR libgfortran/56743
	* gfortran.dg/namelist_87.f90: New test.

From-SVN: r222272

gcc/testsuite/ChangeLog

+2015-04-21 Jerry DeLisle  <jvdelisle@gcc.gnu.org>
+
+	PR libgfortran/56743
+	* gfortran.dg/namelist_87.f90: New test.
+
 2015-04-21  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
 
 	* gcc.target/aarch64/mult-synth_1.c: New test.

gcc/testsuite/gfortran.dg/namelist_87.f90

+! { dg-do run }
+!
+! PR fortran/56743
+!
+! Contributed by Kai Gallmeister
+!
+! Note that Fortran 2008 (Section 10.11.3.6) requires that there is
+! a value separator between the value and the "!".  Thus, all examples
+! in this file are invalid; they should either be accepted as vendor
+! extension or lead to a run-time error (iostat /=0).
+!
+! For the c1 and c2 character example, please note that the Fortran
+! standard (F2008, 10.11.3.3) requires delimiters; accepting
+! a single word (in spirit of list-directed I/O) would be possible
+! as vendor extension. But the current run-time failure is fine as well.
+!
+! Note: After fixing this, warning or error is given with -pedantic -std=xxx
+implicit none
+integer :: i = -1
+real :: r1 = -2
+real :: r2 = -3
+real :: r3 = -4
+real :: r4 = -5
+real :: r5 = -6
+complex :: c = (-7,-7)
+logical :: ll = .false.
+character :: c1 = 'X'
+character(3) :: c2 = 'YYY'
+character(3) :: c3 = 'ZZZ'
+namelist /nml/ i, r1,r2,r3,r4,r5,c,ll,c1,c2,c3
+
+open (99, file='nml.dat', status="replace")
+write(99,*) "&nml"
+write(99,*) "  i=42!11"         ! Fixed BUG: wrong result: Unmodified, no error
+write(99,*) "  r1=43!11"        ! Fixed BUG: wrong result: Unmodified, no error
+write(99,*) "  r2=43.!11"       ! Fixed BUG: wrong result: Unmodified, no error
+write(99,*) "  r3=inf!11"       ! OK:  run-time error (Cannot match namelist object)
+write(99,*) "  r4=NaN(0x33)!11" ! OK:  run-time error (Cannot match namelist object)
+write(99,*) "  r5=3.e5!11"      ! Fixed BUG: wrong result: Unmodified, no error
+write(99,*) "  c=(4,2)!11"      ! OK:  value accepted as vendor extension
+write(99,*) "  ll=.true.!11"    ! OK:  value accepted as vendor extension
+write(99,*) "  c1='a'!11"       ! OK:  without quotes, run-time error (Cannot match namelist object)
+write(99,*) "  c2='bc'!11"      ! OK:  without quotes, run-time error (Cannot match namelist object)
+write(99,*) "  c3='ax'!11"      ! OK:  without quotes, run-time error (Cannot match namelist object)
+write(99,*) "/"
+
+rewind(99)
+read (99, nml=nml)
+!write (*, nml=nml)
+close (99, status="delete")
+
+  if (r1 /= 43) call abort ()
+  if (r2 /= 43) call abort ()
+  if (r3 /= r3 .or. r3 <= huge(r3)) call abort ()
+  if (r4 == r4) call abort ()
+  if (r5 /= 300000) call abort ()
+  if (c /= cmplx(4,2)) call abort ()
+  if (.not. ll) call abort ()
+  if (c1 /= "a") call abort ()
+  if (c2 /= "bc") call abort ()
+  if (c3 /= "ax") call abort ()
+end