reading file problem

[mikibelavista]

My file:
3515 2.154
3516 2.126
3517 2.098
3518 2.063
3519 2.084
3520 2.114
3521 2.128
.
.
13093 2.302
13094 2.294
13095 2.29
13096 2.314
13097 2.314
13098 2.294
13099 2.294
13100 2.279

9586 lines in the file.

My code:
program pr2

implicit none

integer :: i,j
real,dimension(9586) :: c
integer,dimension(9586) :: k


open(10,file='gom.dat')

do i=1,9586
read(10,51)k(i),c(i)
51 format(i5,3x,f5.3)
end do

end program

gfortan gives
At line 13 of file pr2.f90 (unit = 10, file = 'gom.dat')
Fortran runtime error: Bad value during integer read
ifort:
forrtl: severe (64): input conversion error, unit 10,

Why?

 

[mikrom]

Probably one of the data lines contains data that doesn't much your format.
Try to change reading with format specification

read(10,51)k(i),c(i)

to reading without format specification

read(10,*)k(i),c(i)

 

[xwb]

Add some error handling to your read

do i=1,9586
   read(10,*,end=888,err=999)k(i),c(i)
end do
close(10)
stop
888 print *, 'Premature end of file i=', i
    stop

999 print *, 'Error at i=', i
    stop

end program