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| -rw-r--r-- | gcc/fortran/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/fortran/invoke.texi | 20 |
2 files changed, 20 insertions, 5 deletions
diff --git a/gcc/fortran/ChangeLog b/gcc/fortran/ChangeLog index 998bbf3..fb06ed8 100644 --- a/gcc/fortran/ChangeLog +++ b/gcc/fortran/ChangeLog @@ -1,3 +1,8 @@ +2005-04-19 Arnaud Desitter <arnaud.desitter@ouce.ox.ac.uk> + Steven G. Kargl <kargls@comcast.net> + + * invoke.texi: Update -Waliasing description + 2005-04-19 Francois-Xavier Coudert <coudert@clipper.ens.fr> PR fortran/16861 diff --git a/gcc/fortran/invoke.texi b/gcc/fortran/invoke.texi index 7ffd7af..971dda1 100644 --- a/gcc/fortran/invoke.texi +++ b/gcc/fortran/invoke.texi @@ -329,12 +329,22 @@ This currently includes @option{-Wunused-labels}, @option{-Waliasing}, @cindex options, -Waliasing @item -Waliasing @cindex aliasing -Warn about possible aliasing of dummy arguments. The following example -will trigger the warning as it would be illegal to @code{bar} to -modify either parameter. +Warn about possible aliasing of dummy arguments. Specifically, it warns +if the same actual argument is associated with a dummy argument with +@code{intent(in)} and a dummy argument with @code{intent(out)} in a call +with an explicit interface. + +The following example will trigger the warning. @smallexample - INTEGER A - CALL BAR(A,A) + interface + subroutine bar(a,b) + integer, intent(in) :: a + integer, intent(out) :: b + end subroutine + end interface + integer :: a + + call bar(a,a) @end smallexample |