问使用指向多个目标的相同指针时发生内存泄漏

EN

Module Derived_type

implicit none

Type , public :: Something

  private

       Real :: Somth_1
    Integer :: Somth_2

  contains

    procedure , public :: read_input => read_data_input
    procedure , public :: t_Somth_1 => t_data_Somth_1
    procedure , public :: t_Somth_2 => t_data_Somth_2

End Type Something

private :: read_data_input
private :: t_data_Somth_1 , t_data_Somth_2

contains

Subroutine read_data_input( This , Un_r )

  Class( Something ) :: This
  Integer , intent( in ) :: Un_r

  Read ( Un_r , * , Err = 100 ) This%Somth_1
  Read ( Un_r , * , Err = 101 ) This%Somth_2

Return

100 Stop ( "Read format error - 100 !!!" )
101 Stop ( "Read format error - 101 !!!" )

End Subroutine read_data_input

Function t_data_Somth_1 ( This ) result( data_Somth_1 )

  Class( Something ) :: This
  Real :: data_Somth_1

  data_Somth_1 = This%Somth_1

End Function t_data_Somth_1

Function t_data_Somth_2 ( This ) result( data_Somth_2 )

  Class( Something ) :: This
  Integer :: data_Somth_2

  data_Somth_2 = This%Somth_2

End Function t_data_Somth_2

End Module Derived_type

Program Memory_leaking

Use , non_intrinsic :: Derived_type

Implicit none

Integer :: i , alloc_err , dealloc_err
Integer , parameter :: N_snv = 3
Character( 256 ) :: Name
Character(*),parameter :: a00 = '("Input_",i1,".txt")'

Class( Something ) , pointer :: Po_Something

Type( Something ) , allocatable , target :: Tar_Something(:)

! Memory allocation

allocate ( Po_Something , Stat = alloc_err )

If ( alloc_err .ne. 0 ) Stop ( "Allocation wrong - Po_Something !!!")

If ( .not. allocated ( Tar_Something ) ) allocate( Tar_Something( N_snv ) , stat = alloc_err )

If ( alloc_err .ne. 0 ) Stop ( "Allocation wrong - Tar_Something !!!")


Do i = 1 , N_snv

   Po_Something => Tar_Something(i)

   Write( Name , a00 ) i

   Open( 15 , File = Name , Status = 'Unknown' , Action = 'Read' )

      Call Po_Something%read_input( 15 )

   Close( 15 , Status = 'Keep' )

   Write(*,*) Po_Something%t_Somth_1() , Po_Something%t_Somth_2()

End Do

! Memory deallocation

deallocate ( Po_Something , Stat = dealloc_err )

If ( dealloc_err .ne. 0 ) Stop ( "deAllocation wrong - Po_Something !!!")

If ( allocated ( Tar_Something ) ) deallocate( Tar_Something, stat = dealloc_err )

If ( dealloc_err .ne. 0 ) Stop ( "deAllocation wrong - Tar_Something !!!")

End program Memory_leaking