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[/] [openrisc/] [trunk/] [gnu-src/] [gcc-4.5.1/] [gcc/] [testsuite/] [gfortran.dg/] [fseek.f90] - Rev 414
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! { dg-do run }
PROGRAM test_fseek
INTEGER, PARAMETER :: SEEK_SET = 0, SEEK_CUR = 1, SEEK_END = 2, fd=10
INTEGER :: ierr = 0
INTEGER :: newline_length
! We first need to determine if a newline is one or two characters
open (911,status="scratch")
write(911,"()")
newline_length = ftell(911)
close (911)
if (newline_length < 1 .or. newline_length > 2) call abort()
open(fd, status="scratch")
! expected position: one leading blank + 10 + newline
WRITE(fd, *) "1234567890"
IF (FTELL(fd) /= 11 + newline_length) CALL abort()
! move backward from current position
CALL FSEEK(fd, -11 - newline_length, SEEK_CUR, ierr)
IF (ierr /= 0 .OR. FTELL(fd) /= 0) CALL abort()
! move to negative position (error)
CALL FSEEK(fd, -1, SEEK_SET, ierr)
IF (ierr == 0 .OR. FTELL(fd) /= 0) CALL abort()
! move forward from end (11 + 10 + newline)
CALL FSEEK(fd, 10, SEEK_END, ierr)
IF (ierr /= 0 .OR. FTELL(fd) /= 21 + newline_length) CALL abort()
! set position (0)
CALL FSEEK(fd, 0, SEEK_SET, ierr)
IF (ierr /= 0 .OR. FTELL(fd) /= 0) CALL abort()
! move forward from current position
CALL FSEEK(fd, 5, SEEK_CUR, ierr)
IF (ierr /= 0 .OR. FTELL(fd) /= 5) CALL abort()
CALL FSEEK(fd, HUGE(0_1), SEEK_SET, ierr)
IF (ierr /= 0 .OR. FTELL(fd) /= HUGE(0_1)) CALL abort()
CALL FSEEK(fd, HUGE(0_2), SEEK_SET, ierr)
IF (ierr /= 0 .OR. FTELL(fd) /= HUGE(0_2)) CALL abort()
CALL FSEEK(fd, HUGE(0_4), SEEK_SET, ierr)
IF (ierr /= 0 .OR. FTELL(fd) /= HUGE(0_4)) CALL abort()
CALL FSEEK(fd, -HUGE(0_4), SEEK_CUR, ierr)
IF (ierr /= 0 .OR. FTELL(fd) /= 0) CALL abort()
END PROGRAM
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