[求助] 出现错误Segmentation fault - invalid memory reference.

Program main
use timer_supports
implicit none

  Integer,parameter :: length=1000
  integer i , f , idays
  integer d
  Character(LEN=length) A,B,Filename
  Integer(kind=4)::Column, Row, K,L
  integer , allocatable :: c( : , : )
  Column=0;Row=0;K=0;L=1;filename="ztzl-1.txt"
  Open (55,file=Filename)
  Read(55,'(a1000)') A
  column=GetDataN(A)!//改成这个函数，具体实现在下面的代码
  CLOSE(55)
  Open (55,file=Filename)
  Do
    Read(55,*,iostat=k) B
    If( k /= 0 ) Exit
    Row = Row + 1
  End Do
  Write(*,"(A5,I6,5X,A7,I2)") "Row=",Row,"Column=",Column!读取行数
  allocate(c(column-1,row))
  rewind(55)
  Do i = 1,Row
    read(55,*) d,c(:,i)!//1改成 i
  End Do
  Close(55)!将数据转化为数组
  
  call daysfromdate(1954,1,1,2007,12,31,0)
  print *, idays
contains

  Integer Function GetDataN( cStr )
    Character( Len = * ) , Intent( IN ) :: cStr
    Integer :: i
    Logical :: bIsSeparator , bIsQuote
    GetDataN = 0
    bIsSeparator = .TRUE.
    bIsQuote = .FALSE.
    Do i = 1 , Len_Trim( cStr )
      Select Case( cStr(i:i) )
      Case( '"' , "'" ) !// 如果遇到引号
        If ( .Not.bIsQuote ) GetDataN = GetDataN + 1  !//如果不在引号中，则增加一个数据
        bIsQuote = .Not.bIsQuote !// 引号结束或开始
        bIsSeparator = .FALSE.
      Case( " " , "," , char(9) ) !// 如果遇到分隔符
        If ( .Not.bIsQuote ) then  !// 分隔符如果不在引号中
          bIsSeparator = .TRUE.
        End If
      Case Default      
        If ( bIsSeparator ) then
          GetDataN = GetDataN + 1
        End If
        bIsSeparator = .FALSE.
      End Select
    End Do
  End Function GetDataN
End Program Main