尝试在地址处读取过去的文件结尾

Question

writing a very simple read file in Fortran 95. The file has only three numbers in it, every time I run the code, the .exe file says " error: attempt to read end-of-file at address ", any clues why this keeps happening?

The code is :

program readdata

implicit none

!Delcaration of variables

real :: x,y,z

!Main part

open (10, file='C:\Users\matth\OneDrive\Documents\Tutorialcode\array.txt',ACCESS='SEQUENTIAL', STATUS='OLD', FORM='FORMATTED')

read (10, *) x, y, z

print *,x,y,z

close (10)

end program readdata

Answer 1

I have loaded your code into my Eclipse IDE, using GNU Fortran.

I confirm that the code compiles, without error or warning, and runs as advertised.

With an array.txt file of:

1.00, 2.00, 3.00

I get output:

1.00, 2.00, 3.00

With an empty file I get:

At line 13 of file ../readdata.f90 (unit = 10, file = 'C:\Users\franc\array.txt')
Fortran runtime error: End of file

Error termination. Backtrace:

Could not print backtrace: libbacktrace could not find executable to open
#0  0xffffffff
#1  0xffffffff
#2  0xffffffff
#3  0xffffffff
#4  0xffffffff
#5  0xffffffff
#6  0xffffffff
#7  0xffffffff
#8  0xffffffff
#9  0xffffffff
#10  0xffffffff
#11  0xffffffff
#12  0xffffffff
#13  0xffffffff
#14  0xffffffff

So, my suspicion is over whether your file is missing some values.

Please also see:

Fortran 90 - Attempt to read past end of file