Read entire file to buffer?

[mojomother]

Is there any way to read an entire file into an ALLOCATABLE buffer in Fortran? Say I have the code

CHARACTER, DIMENSION(:), ALLOCATABLE :: file_buffer
file_size = get_file_size(filename)
ALLOCATE(file_buffer(file_size))

What needs to happen afterwards to read the entire file "file_name" into file_buffer? The file might be big (~ 5 MB).

The way I'm trying to do it, I keep getting "input statement requires too much data" errors.

Thanks in advance!
Matt

 

[xwb]

You need to do something like

  open (30, &
      file='bigfile.bmp', &
      status='old', &
      recl=file_size, &
      form='unformatted', &
      access='direct')
   read (30, rec=1) file_buffer
   close (30)

Where bigfile.bmp is the name of the file