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! { dg-do run { target fd_truncate } }
!
! Functional test of User Defined Derived Type IO, Formatted WRITE/READ
!
! 1) Tests passing of iostat out of the user procedure.
! 2) Tests parsing of the DT optional string and passing in and using
! to control execution.
! 3) Tests parsing of the optional vlist, passing in and using it to
! generate a user defined format string.
! 4) Tests passing an iostat or iomsg out of the libgfortran child
! procedure back to the parent.
!
MODULE p
USE ISO_FORTRAN_ENV
TYPE :: person
CHARACTER (LEN=20) :: name
INTEGER(4) :: age
CONTAINS
procedure :: pwf
procedure :: prf
GENERIC :: WRITE(FORMATTED) => pwf
GENERIC :: READ(FORMATTED) => prf
END TYPE person
CONTAINS
SUBROUTINE pwf (dtv,unit,iotype,vlist,iostat,iomsg)
CLASS(person), INTENT(IN) :: dtv
INTEGER, INTENT(IN) :: unit
CHARACTER (LEN=*), INTENT(IN) :: iotype
INTEGER, INTENT(IN) :: vlist(:)
INTEGER, INTENT(OUT) :: iostat
CHARACTER (LEN=*), INTENT(INOUT) :: iomsg
CHARACTER (LEN=30) :: udfmt
INTEGER :: myios
udfmt='(*(g0))'
iostat=0
if (iotype.eq."DT") then
if (size(vlist).ne.0) print *, 36
WRITE(unit, FMT = '(a,5x,i2)', IOSTAT=iostat, advance='no') trim(dtv%name), dtv%age
if (iostat.ne.0) iomsg = "Fail PWF DT"
endif
if (iotype.eq."DTzeroth") then
if (size(vlist).ne.0) print *, 40
WRITE(unit, FMT = '(g0,g0)', advance='no') dtv%name, dtv%age
if (iostat.ne.0) iomsg = "Fail PWF DTzeroth"
endif
if (iotype.eq."DTtwo") then
if (size(vlist).ne.2) STOP 1
WRITE(udfmt,'(A,A,I1,A,I1,A)') '(', 'A', vlist(1),',I', vlist(2), ')'
WRITE(unit, FMT='(A8,I2)') dtv%name, dtv%age
if (iostat.ne.0) iomsg = "Fail PWF DTtwo"
endif
if (iotype.eq."DTthree") then
WRITE(udfmt,'(2A,I2,A,I1,A,I2,A)',iostat=myios) '(', 'A', vlist(1),',I', vlist(2), ',F', vlist(3), '.2)'
WRITE(unit, FMT=udfmt, IOSTAT=iostat, advance='no') trim(dtv%name), dtv%age, 3.14
if (iostat.ne.0) iomsg = "Fail PWF DTthree"
endif
if (iotype.eq."LISTDIRECTED") then
if (size(vlist).ne.0) print *, 55
WRITE(unit, FMT = *) dtv%name, dtv%age
if (iostat.ne.0) iomsg = "Fail PWF LISTDIRECTED"
endif
if (iotype.eq."NAMELIST") then
if (size(vlist).ne.0) print *, 59
iostat=6000
iomsg = "NAMELIST not implemented in pwf"
endif
END SUBROUTINE pwf
SUBROUTINE prf (dtv,unit,iotype,vlist,iostat,iomsg)
CLASS(person), INTENT(INOUT) :: dtv
INTEGER, INTENT(IN) :: unit
CHARACTER (LEN=*), INTENT(IN) :: iotype
INTEGER, INTENT(IN) :: vlist(:)
INTEGER, INTENT(OUT) :: iostat
CHARACTER (LEN=*), INTENT(INOUT) :: iomsg
CHARACTER (LEN=30) :: udfmt
INTEGER :: myios
real :: areal
udfmt='(*(g0))'
iostat=0
if (iotype.eq."DT") then
if (size(vlist).ne.0) print *, 36
READ(unit, FMT = '(a,5x,i2)', IOSTAT=iostat, advance='no') dtv%name, dtv%age
if (iostat.ne.0) iomsg = "Fail PWF DT"
endif
if (iotype.eq."DTzeroth") then
if (size(vlist).ne.0) print *, 40
READ(unit, FMT = '(a,I2)', advance='no') dtv%name, dtv%age
if (iostat.ne.0) iomsg = "Fail PWF DTzeroth"
endif
if (iotype.eq."DTtwo") then
if (size(vlist).ne.2) STOP 2
WRITE(udfmt,'(A,A,I1,A,I1,A)') '(', 'A', vlist(1),',I', vlist(2), ')'
READ(unit, FMT='(A8,I2)') dtv%name, dtv%age
if (iostat.ne.0) iomsg = "Fail PWF DTtwo"
endif
if (iotype.eq."DTthree") then
WRITE(udfmt,'(2A,I2,A,I1,A,I2,A)',iostat=myios) '(', 'A', vlist(1),',I', vlist(2), ',F', vlist(3), '.2)'
READ(unit, FMT=udfmt, IOSTAT=iostat, advance='no') dtv%name, dtv%age, areal
if (iostat.ne.0) iomsg = "Fail PWF DTthree"
endif
if (iotype.eq."LISTDIRECTED") then
if (size(vlist).ne.0) print *, 55
READ(unit, FMT = *) dtv%name, dtv%age
if (iostat.ne.0) iomsg = "Fail PWF LISTDIRECTED"
endif
if (iotype.eq."NAMELIST") then
if (size(vlist).ne.0) print *, 59
iostat=6000
iomsg = "NAMELIST not implemented in prf"
endif
END SUBROUTINE prf
END MODULE p
PROGRAM test
USE p
TYPE (person), SAVE :: chairman
TYPE (person), SAVE :: member
character(80) :: astring
integer :: thelength
chairman%name="Charlie"
chairman%age=62
member%name="George"
member%age=42
astring = "SUCCESS"
write (10, "(DT'zeroth',3x, DT'three'(11,4,10),11x,DT'two'(8,2))", &
& iostat=myiostat, iomsg=astring) member, chairman, member
if (myiostat.ne.0) STOP 3
if (astring.ne."SUCCESS") STOP 4
astring = "SUCCESS"
write (10, *, iostat=myiostat, iomsg=astring) member, chairman, member
if (myiostat.ne.0) STOP 5
if (astring.ne."SUCCESS") STOP 6
write(10,*) ! See note below
rewind(10)
chairman%name="bogus1"
chairman%age=99
member%name="bogus2"
member%age=66
astring = "SUCCESS"
read(10,"(DT'zeroth',3x, DT'three'(11,4,10),11x,DT'two'(8,2))") member, chairman, member
if (member%name.ne."George") STOP 7
if (chairman%name.ne." Charlie") STOP 8
if (member%age.ne.42) STOP 9
if (chairman%age.ne.62) STOP 10
chairman%name="bogus1"
chairman%age=99
member%name="bogus2"
member%age=66
astring = "SAME"
read (10, *, iostat=myiostat, iomsg=astring) member, chairman, member
! The user defined procedure reads to the end of the line/file, then finalizing the parent
! reads past, so we wrote a blank line above. User needs to address these nuances in their
! procedures. (subject to interpretation)
if (astring.ne."SAME" .or. myiostat.ne.0) STOP 11
if (member%name.ne."George") STOP 12
if (chairman%name.ne."Charlie") STOP 13
if (member%age.ne.42) STOP 14
if (chairman%age.ne.62) STOP 15
END PROGRAM test
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