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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/trim_1.f90
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+! { dg-do run }
+
+! Torture-test TRIM and LEN_TRIM for correctness.
+
+
+! Given a total string length and a trimmed length, construct an
+! appropriate string and check gfortran gets it right.
+
+SUBROUTINE check_trim (full_len, trimmed_len)
+ IMPLICIT NONE
+ INTEGER, INTENT(IN) :: full_len, trimmed_len
+ CHARACTER(LEN=full_len) :: string
+
+ string = ""
+ IF (trimmed_len > 0) THEN
+ string(trimmed_len:trimmed_len) = "x"
+ END IF
+
+ IF (LEN (string) /= full_len &
+ .OR. LEN_TRIM (string) /= trimmed_len &
+ .OR. LEN (TRIM (string)) /= trimmed_len &
+ .OR. TRIM (string) /= string (1:trimmed_len)) THEN
+ PRINT *, full_len, trimmed_len
+ PRINT *, LEN (string), LEN_TRIM (string)
+ CALL abort ()
+ END IF
+END SUBROUTINE check_trim
+
+
+! The main program, check with various combinations.
+
+PROGRAM main
+ IMPLICIT NONE
+ INTEGER :: i, j
+
+ DO i = 0, 20
+ DO j = 0, i
+ CALL check_trim (i, j)
+ END DO
+ END DO
+END PROGRAM main