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authorupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
committerupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
commit554fd8c5195424bdbcabf5de30fdc183aba391bd (patch)
tree976dc5ab7fddf506dadce60ae936f43f58787092 /gcc/testsuite/gfortran.dg/fseek.f90
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Diffstat (limited to 'gcc/testsuite/gfortran.dg/fseek.f90')
-rw-r--r--gcc/testsuite/gfortran.dg/fseek.f9052
1 files changed, 52 insertions, 0 deletions
diff --git a/gcc/testsuite/gfortran.dg/fseek.f90 b/gcc/testsuite/gfortran.dg/fseek.f90
new file mode 100644
index 000000000..9e3c7195a
--- /dev/null
+++ b/gcc/testsuite/gfortran.dg/fseek.f90
@@ -0,0 +1,52 @@
+! { 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
+