./: * attribs.c (register_attribute): Use CONST_CAST.
* collect2.c (main): Use CONST_CAST2.
(scan_prog_file): Likewise.
* gcc.c (process_command, main): Likewise.
* toplev.c (toplev_main): Likewise.
* c-typeck.c (handle_warn_cast_qual): New static function,
partially broken out of build_c_cast.
(build_c_cast): Call handle_warn_cast_qual.
* doc/invoke.texi (Warning Options): Document new effect of
-Wcast-qual.
./java: * jcf-io.c (find_class): Use CONST_CAST.
./testsuite: * gcc.dg/cast-qual-3.c: New testcase.
* g++.dg/warn/Wcast-qual2.C: New testcase.
From-SVN: r148053
+2009-06-01 Ian Lance Taylor <iant@google.com>
+
+ * attribs.c (register_attribute): Use CONST_CAST.
+ * collect2.c (main): Use CONST_CAST2.
+ (scan_prog_file): Likewise.
+ * gcc.c (process_command, main): Likewise.
+ * toplev.c (toplev_main): Likewise.
+
+ * c-typeck.c (handle_warn_cast_qual): New static function,
+ partially broken out of build_c_cast.
+ (build_c_cast): Call handle_warn_cast_qual.
+ * doc/invoke.texi (Warning Options): Document new effect of
+ -Wcast-qual.
+
2009-06-01 Aldy Hernandez <aldyh@redhat.com>
* diagnostic.c (diagnostic_build_prefix): Always print columns.
/* Functions dealing with attribute handling, used by most front ends.
Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001,
- 2002, 2003, 2004, 2005, 2007, 2008 Free Software Foundation, Inc.
+ 2002, 2003, 2004, 2005, 2007, 2008, 2009 Free Software Foundation, Inc.
This file is part of GCC.
register_attribute (const struct attribute_spec *attr)
{
struct substring str;
- const void **slot;
+ void **slot;
str.str = attr->name;
str.length = strlen (str.str);
- slot = (const void **)htab_find_slot_with_hash (attribute_hash, &str,
- substring_hash (str.str, str.length),
- INSERT);
+ slot = htab_find_slot_with_hash (attribute_hash, &str,
+ substring_hash (str.str, str.length),
+ INSERT);
gcc_assert (!*slot);
- *slot = attr;
+ *slot = (void *) CONST_CAST (struct attribute_spec *, attr);
}
/* Return the spec for the attribute named NAME. */
return ret;
}
+/* Issue -Wcast-qual warnings when appropriate. TYPE is the type to
+ which we are casting. OTYPE is the type of the expression being
+ cast. Both TYPE and OTYPE are pointer types. -Wcast-qual appeared
+ on the command line. */
+
+static void
+handle_warn_cast_qual (tree type, tree otype)
+{
+ tree in_type = type;
+ tree in_otype = otype;
+ int added = 0;
+ int discarded = 0;
+ bool is_const;
+
+ /* Check that the qualifiers on IN_TYPE are a superset of the
+ qualifiers of IN_OTYPE. The outermost level of POINTER_TYPE
+ nodes is uninteresting and we stop as soon as we hit a
+ non-POINTER_TYPE node on either type. */
+ do
+ {
+ in_otype = TREE_TYPE (in_otype);
+ in_type = TREE_TYPE (in_type);
+
+ /* GNU C allows cv-qualified function types. 'const' means the
+ function is very pure, 'volatile' means it can't return. We
+ need to warn when such qualifiers are added, not when they're
+ taken away. */
+ if (TREE_CODE (in_otype) == FUNCTION_TYPE
+ && TREE_CODE (in_type) == FUNCTION_TYPE)
+ added |= (TYPE_QUALS (in_type) & ~TYPE_QUALS (in_otype));
+ else
+ discarded |= (TYPE_QUALS (in_otype) & ~TYPE_QUALS (in_type));
+ }
+ while (TREE_CODE (in_type) == POINTER_TYPE
+ && TREE_CODE (in_otype) == POINTER_TYPE);
+
+ if (added)
+ warning (OPT_Wcast_qual, "cast adds new qualifiers to function type");
+
+ if (discarded)
+ /* There are qualifiers present in IN_OTYPE that are not present
+ in IN_TYPE. */
+ warning (OPT_Wcast_qual,
+ "cast discards qualifiers from pointer target type");
+
+ if (added || discarded)
+ return;
+
+ /* A cast from **T to const **T is unsafe, because it can cause a
+ const value to be changed with no additional warning. We only
+ issue this warning if T is the same on both sides, and we only
+ issue the warning if there are the same number of pointers on
+ both sides, as otherwise the cast is clearly unsafe anyhow. A
+ cast is unsafe when a qualifier is added at one level and const
+ is not present at all outer levels.
+
+ To issue this warning, we check at each level whether the cast
+ adds new qualifiers not already seen. We don't need to special
+ case function types, as they won't have the same
+ TYPE_MAIN_VARIANT. */
+
+ if (TYPE_MAIN_VARIANT (in_type) != TYPE_MAIN_VARIANT (in_otype))
+ return;
+ if (TREE_CODE (TREE_TYPE (type)) != POINTER_TYPE)
+ return;
+
+ in_type = type;
+ in_otype = otype;
+ is_const = TYPE_READONLY (TREE_TYPE (in_type));
+ do
+ {
+ in_type = TREE_TYPE (in_type);
+ in_otype = TREE_TYPE (in_otype);
+ if ((TYPE_QUALS (in_type) &~ TYPE_QUALS (in_otype)) != 0
+ && !is_const)
+ {
+ warning (OPT_Wcast_qual,
+ ("new qualifiers in middle of multi-level non-const cast "
+ "are unsafe"));
+ break;
+ }
+ if (is_const)
+ is_const = TYPE_READONLY (in_type);
+ }
+ while (TREE_CODE (in_type) == POINTER_TYPE);
+}
+
/* Build an expression representing a cast to type TYPE of expression EXPR. */
tree
otype = TREE_TYPE (value);
/* Optionally warn about potentially worrisome casts. */
-
if (warn_cast_qual
&& TREE_CODE (type) == POINTER_TYPE
&& TREE_CODE (otype) == POINTER_TYPE)
- {
- tree in_type = type;
- tree in_otype = otype;
- int added = 0;
- int discarded = 0;
-
- /* Check that the qualifiers on IN_TYPE are a superset of
- the qualifiers of IN_OTYPE. The outermost level of
- POINTER_TYPE nodes is uninteresting and we stop as soon
- as we hit a non-POINTER_TYPE node on either type. */
- do
- {
- in_otype = TREE_TYPE (in_otype);
- in_type = TREE_TYPE (in_type);
-
- /* GNU C allows cv-qualified function types. 'const'
- means the function is very pure, 'volatile' means it
- can't return. We need to warn when such qualifiers
- are added, not when they're taken away. */
- if (TREE_CODE (in_otype) == FUNCTION_TYPE
- && TREE_CODE (in_type) == FUNCTION_TYPE)
- added |= (TYPE_QUALS (in_type) & ~TYPE_QUALS (in_otype));
- else
- discarded |= (TYPE_QUALS (in_otype) & ~TYPE_QUALS (in_type));
- }
- while (TREE_CODE (in_type) == POINTER_TYPE
- && TREE_CODE (in_otype) == POINTER_TYPE);
-
- if (added)
- warning (OPT_Wcast_qual, "cast adds new qualifiers to function type");
-
- if (discarded)
- /* There are qualifiers present in IN_OTYPE that are not
- present in IN_TYPE. */
- warning (OPT_Wcast_qual, "cast discards qualifiers from pointer target type");
- }
+ handle_warn_cast_qual (type, otype);
/* Warn about possible alignment problems. */
if (STRICT_ALIGNMENT
/* Do not invoke xcalloc before this point, since locale needs to be
set first, in case a diagnostic is issued. */
- ld1 = (const char **)(ld1_argv = XCNEWVEC (char *, argc+4));
- ld2 = (const char **)(ld2_argv = XCNEWVEC (char *, argc+11));
- object = (const char **)(object_lst = XCNEWVEC (char *, argc));
+ ld1_argv = XCNEWVEC (char *, argc + 4);
+ ld1 = CONST_CAST2 (const char **, char **, ld1_argv);
+ ld2_argv = XCNEWVEC (char *, argc + 11);
+ ld2 = CONST_CAST2 (const char **, char **, ld2_argv);
+ object_lst = XCNEWVEC (char *, argc);
+ object = CONST_CAST2 (const char **, char **, object_lst);
#ifdef DEBUG
debug = 1;
-fno-exceptions -w */
num_c_args += 5;
- c_ptr = (const char **) (c_argv = XCNEWVEC (char *, num_c_args));
+ c_argv = XCNEWVEC (char *, num_c_args);
+ c_ptr = CONST_CAST2 (const char **, char **, c_argv);
if (argc < 2)
fatal ("no arguments");
if (strip_flag)
{
char **real_strip_argv = XCNEWVEC (char *, 3);
- const char ** strip_argv = (const char **) real_strip_argv;
+ const char ** strip_argv = CONST_CAST2 (const char **, char **,
+ real_strip_argv);
strip_argv[0] = strip_file_name;
strip_argv[1] = output_file;
void (*quit_handler) (int);
#endif
char *real_nm_argv[4];
- const char **nm_argv = (const char **) real_nm_argv;
+ const char **nm_argv = CONST_CAST2 (const char **, char**, real_nm_argv);
int argc = 0;
struct pex_obj *pex;
const char *errmsg;
the target type. For example, warn if a @code{const char *} is cast
to an ordinary @code{char *}.
+Also warn when making a cast which introduces a type qualifier in an
+unsafe way. For example, casting @code{char **} to @code{const char **}
+is unsafe, as in this example:
+
+@smallexample
+ /* p is char ** value. */
+ const char **q = (const char **) p;
+ /* Assignment of readonly string to const char * is OK. */
+ *q = "string";
+ /* Now char** pointer points to read-only memory. */
+ **p = 'b';
+@end smallexample
+
@item -Wcast-align
@opindex Wcast-align
@opindex Wno-cast-align
}
/* Convert new-style -- options to old-style. */
- translate_options (&argc, (const char *const **) &argv);
+ translate_options (&argc,
+ CONST_CAST2 (const char *const **, const char ***,
+ &argv));
/* Do language-specific adjustment/addition of flags. */
- lang_specific_driver (&argc, (const char *const **) &argv, &added_libraries);
+ lang_specific_driver (&argc,
+ CONST_CAST2 (const char *const **, const char ***,
+ &argv),
+ &added_libraries);
/* Scan argv twice. Here, the first time, just count how many switches
there will be in their vector, and how many input files in theirs.
Make a table of specified input files (infiles, n_infiles).
Decode switches that are handled locally. */
- process_command (argc, (const char **) argv);
+ process_command (argc, CONST_CAST2 (const char **, char **, argv));
/* Initialize the vector of specs to just the default.
This means one element containing 0s, as a terminator. */
+2009-06-01 Ian Lance Taylor <iant@google.com>
+
+ * jcf-io.c (find_class): Use CONST_CAST.
+
2009-05-27 Ian Lance Taylor <iant@google.com>
* Make-lang.in ($(XGCJ)$(exeext)): Change $(COMPILER) to
/* Utility routines for finding and reading Java(TM) .class files.
Copyright (C) 1996, 1997, 1998, 1999, 2000, 2002, 2003, 2004, 2005,
- 2006, 2007, 2008 Free Software Foundation, Inc.
+ 2006, 2007, 2008, 2009 Free Software Foundation, Inc.
This file is part of GCC.
/* Remember that this class could not be found so that we do not
have to look again. */
- *(const void **)htab_find_slot_with_hash (memoized_class_lookups,
- classname, hash, INSERT)
- = classname;
+ *htab_find_slot_with_hash (memoized_class_lookups, classname, hash, INSERT)
+ = (void *) CONST_CAST (char *, classname);
return NULL;
found:
+2009-06-01 Ian Lance Taylor <iant@google.com>
+
+ * gcc.dg/cast-qual-3.c: New testcase.
+ * g++.dg/warn/Wcast-qual2.C: New testcase.
+
2009-06-01 Aldy Hernandez <aldyh@redhat.com>
* lib/gcc-dg.exp (dg-bogus): Override dg-bogus.
--- /dev/null
+/* { dg-do compile } */
+/* { dg-options "-Wcast-qual" } */
+
+/* The files gcc.dg/cast-qual-3.c and g++.dg/warn/Wcast-qual2.c are
+ duals. they are intended to show that gcc -Wcast-qual and g++
+ -Wcast-qual emit warnings in the same cases. If you change this
+ file, please also change the other one. */
+
+void
+f1 (void *bar)
+{
+ const void *p1 = (const void *) bar;
+ const char *p2 = (const char *) bar;
+ const void **p3 = (const void **) bar;
+ const char **p4 = (const char **) bar;
+ const void * const *p5 = (const void * const *) bar;
+ const char * const *p6 = (const char * const *) bar;
+ void * const *p7 = (void * const *) bar;
+ char * const *p8 = (char * const *) bar;
+ const void ***p9 = (const void ***) bar;
+ const char ***p10 = (const char ***) bar;
+ void * const **p11 = (void * const **) bar;
+ char * const **p12 = (char * const **) bar;
+ void ** const *p13 = (void ** const *) bar;
+ char ** const *p14 = (char ** const *) bar;
+ const void * const **p15 = (const void * const **) bar;
+ const char * const **p16 = (const char * const **) bar;
+ const void ** const *p17 = (const void ** const *) bar;
+ const char ** const *p18 = (const char ** const *) bar;
+ void * const * const * p19 = (void * const * const *) bar;
+ char * const * const * p20 = (char * const * const *) bar;
+ const void * const * const *p21 = (const void * const * const *) bar;
+ const char * const * const *p22 = (const char * const * const *) bar;
+}
+
+void
+f2 (void **bar)
+{
+ const void *p1 = (const void *) bar;
+ const char *p2 = (const char *) bar;
+ const void **p3 = (const void **) bar; /* { dg-warning "cast" } */
+ const char **p4 = (const char **) bar;
+ const void * const *p5 = (const void * const *) bar;
+ const char * const *p6 = (const char * const *) bar;
+ void * const *p7 = (void * const *) bar;
+ char * const *p8 = (char * const *) bar;
+ const void ***p9 = (const void ***) bar;
+ const char ***p10 = (const char ***) bar;
+ void * const **p11 = (void * const **) bar;
+ char * const **p12 = (char * const **) bar;
+ void ** const *p13 = (void ** const *) bar;
+ char ** const *p14 = (char ** const *) bar;
+ const void * const **p15 = (const void * const **) bar;
+ const char * const **p16 = (const char * const **) bar;
+ const void ** const *p17 = (const void ** const *) bar;
+ const char ** const *p18 = (const char ** const *) bar;
+ void * const * const * p19 = (void * const * const *) bar;
+ char * const * const * p20 = (char * const * const *) bar;
+ const void * const * const *p21 = (const void * const * const *) bar;
+ const char * const * const *p22 = (const char * const * const *) bar;
+}
+
+void
+f3 (void ***bar)
+{
+ const void *p1 = (const void *) bar;
+ const char *p2 = (const char *) bar;
+ const void **p3 = (const void **) bar;
+ const char **p4 = (const char **) bar;
+ const void * const *p5 = (const void * const *) bar;
+ const char * const *p6 = (const char * const *) bar;
+ void * const *p7 = (void * const *) bar;
+ char * const *p8 = (char * const *) bar;
+ const void ***p9 = (const void ***) bar; /* { dg-warning "cast" } */
+ const char ***p10 = (const char ***) bar;
+ void * const **p11 = (void * const **) bar; /* { dg-warning "cast" } */
+ char * const **p12 = (char * const **) bar;
+ void ** const *p13 = (void ** const *) bar;
+ char ** const *p14 = (char ** const *) bar;
+ const void * const **p15 = (const void * const **) bar; /* { dg-warning "cast" } */
+ const char * const **p16 = (const char * const **) bar;
+ const void ** const *p17 = (const void ** const *) bar; /* { dg-warning "cast" } */
+ const char ** const *p18 = (const char ** const *) bar;
+ void * const * const * p19 = (void * const * const *) bar;
+ char * const * const * p20 = (char * const * const *) bar;
+ const void * const * const *p21 = (const void * const * const *) bar;
+ const char * const * const *p22 = (const char * const * const *) bar;
+}
+
+void
+f4 (void * const **bar)
+{
+ const void ***p9 = (const void ***) bar; /* { dg-warning "cast" } */
+ void * const **p11 = (void * const **) bar;
+ void ** const *p13 = (void ** const *) bar; /* { dg-warning "cast" } */
+ const void * const **p15 = (const void * const **) bar; /* { dg-warning "cast" } */
+ const void ** const *p17 = (const void ** const *) bar; /* { dg-warning "cast" } */
+ void * const * const * p19 = (void * const * const *) bar;
+ const void * const * const *p21 = (const void * const * const *) bar;
+}
+
+void
+f5 (char ***bar)
+{
+ volatile const char ***p9 = (volatile const char ***) bar; /* { dg-warning "cast" } */
+ volatile char * const **p11 = (volatile char * const **) bar; /* { dg-warning "cast" } */
+ volatile char ** const *p13 = (volatile char ** const *) bar; /* { dg-warning "cast" } */
+ volatile const char * const **p15 = (volatile const char * const **) bar; /* { dg-warning "cast" } */
+ volatile const char ** const *p17 = (volatile const char ** const *) bar; /* { dg-warning "cast" } */
+ volatile char * const * const * p19 = (volatile char * const * const *) bar;
+ volatile const char * const * const *p21 = (volatile const char * const * const *) bar;
+}
+
+void
+f6 (char ***bar)
+{
+ const char * volatile **p9 = (const char * volatile **) bar; /* { dg-warning "cast" } */
+ char * volatile const **p11 = (char * volatile const **) bar; /* { dg-warning "cast" } */
+ char * volatile * const *p13 = (char * volatile * const *) bar;
+ const char * volatile const **p15 = (const char * volatile const **) bar; /* { dg-warning "cast" } */
+ const char * volatile * const *p17 = (const char * volatile * const *) bar; /* { dg-warning "cast" } */
+ char * volatile const * const * p19 = (char * volatile const * const *) bar;
+ const char * volatile const * const *p21 = (const char * volatile const * const *) bar;
+}
+
+void
+f7 (char ***bar)
+{
+ const char ** volatile *p9 = (const char ** volatile *) bar; /* { dg-warning "cast" } */
+ char * const * volatile *p11 = (char * const * volatile *) bar; /* { dg-warning "cast" } */
+ char ** volatile const *p13 = (char ** volatile const *) bar;
+ const char * const * volatile *p15 = (const char * const * volatile *) bar; /* { dg-warning "cast" } */
+ const char ** volatile const *p17 = (const char ** volatile const *) bar; /* { dg-warning "cast" } */
+ char * const * volatile const * p19 = (char * const * volatile const *) bar;
+ const char * const * volatile const *p21 = (const char * const * volatile const *) bar;
+}
+
+typedef int (intfn) (int);
+typedef intfn *pintfn;
+typedef const intfn *constfn;
+
+void
+f8 (constfn ***bar)
+{
+ const constfn *p1 = (const constfn *) bar;
+ const pintfn *p2 = (const pintfn *) bar;
+ const constfn **p3 = (const constfn **) bar;
+ const pintfn **p4 = (const pintfn **) bar;
+ const constfn * const *p5 = (const constfn * const *) bar;
+ const pintfn * const *p6 = (const pintfn * const *) bar;
+ constfn * const *p7 = (constfn * const *) bar;
+ pintfn * const *p8 = (pintfn * const *) bar;
+ const constfn ***p9 = (const constfn ***) bar; /* { dg-warning "cast" } */
+ const pintfn ***p10 = (const pintfn ***) bar; /* { dg-warning "cast" } */
+ constfn * const **p11 = (constfn * const **) bar; /* { dg-warning "cast" } */
+ pintfn * const **p12 = (pintfn * const **) bar; /* { dg-warning "cast" } */
+ constfn ** const *p13 = (constfn ** const *) bar;
+ pintfn ** const *p14 = (pintfn ** const *) bar;
+ const constfn * const **p15 = (const constfn * const **) bar; /* { dg-warning "cast" } */
+ const pintfn * const **p16 = (const pintfn * const **) bar; /* { dg-warning "cast" } */
+ const constfn ** const *p17 = (const constfn ** const *) bar; /* { dg-warning "cast" } */
+ const pintfn ** const *p18 = (const pintfn ** const *) bar; /* { dg-warning "cast" } */
+ constfn * const * const * p19 = (constfn * const * const *) bar;
+ pintfn * const * const * p20 = (pintfn * const * const *) bar;
+ const constfn * const * const *p21 = (const constfn * const * const *) bar;
+ const pintfn * const * const *p22 = (const pintfn * const * const *) bar;
+}
--- /dev/null
+/* { dg-do compile } */
+/* { dg-options "-Wcast-qual" } */
+
+/* The files gcc.dg/cast-qual-3.c and g++.dg/warn/Wcast-qual2.c are
+ duals. they are intended to show that gcc -Wcast-qual and g++
+ -Wcast-qual emit warnings in the same cases. If you change this
+ file, please also change the other one. */
+
+void
+f1 (void *bar)
+{
+ const void *p1 = (const void *) bar;
+ const char *p2 = (const char *) bar;
+ const void **p3 = (const void **) bar;
+ const char **p4 = (const char **) bar;
+ const void * const *p5 = (const void * const *) bar;
+ const char * const *p6 = (const char * const *) bar;
+ void * const *p7 = (void * const *) bar;
+ char * const *p8 = (char * const *) bar;
+ const void ***p9 = (const void ***) bar;
+ const char ***p10 = (const char ***) bar;
+ void * const **p11 = (void * const **) bar;
+ char * const **p12 = (char * const **) bar;
+ void ** const *p13 = (void ** const *) bar;
+ char ** const *p14 = (char ** const *) bar;
+ const void * const **p15 = (const void * const **) bar;
+ const char * const **p16 = (const char * const **) bar;
+ const void ** const *p17 = (const void ** const *) bar;
+ const char ** const *p18 = (const char ** const *) bar;
+ void * const * const * p19 = (void * const * const *) bar;
+ char * const * const * p20 = (char * const * const *) bar;
+ const void * const * const *p21 = (const void * const * const *) bar;
+ const char * const * const *p22 = (const char * const * const *) bar;
+}
+
+void
+f2 (void **bar)
+{
+ const void *p1 = (const void *) bar;
+ const char *p2 = (const char *) bar;
+ const void **p3 = (const void **) bar; /* { dg-warning "cast" } */
+ const char **p4 = (const char **) bar;
+ const void * const *p5 = (const void * const *) bar;
+ const char * const *p6 = (const char * const *) bar;
+ void * const *p7 = (void * const *) bar;
+ char * const *p8 = (char * const *) bar;
+ const void ***p9 = (const void ***) bar;
+ const char ***p10 = (const char ***) bar;
+ void * const **p11 = (void * const **) bar;
+ char * const **p12 = (char * const **) bar;
+ void ** const *p13 = (void ** const *) bar;
+ char ** const *p14 = (char ** const *) bar;
+ const void * const **p15 = (const void * const **) bar;
+ const char * const **p16 = (const char * const **) bar;
+ const void ** const *p17 = (const void ** const *) bar;
+ const char ** const *p18 = (const char ** const *) bar;
+ void * const * const * p19 = (void * const * const *) bar;
+ char * const * const * p20 = (char * const * const *) bar;
+ const void * const * const *p21 = (const void * const * const *) bar;
+ const char * const * const *p22 = (const char * const * const *) bar;
+}
+
+void
+f3 (void ***bar)
+{
+ const void *p1 = (const void *) bar;
+ const char *p2 = (const char *) bar;
+ const void **p3 = (const void **) bar;
+ const char **p4 = (const char **) bar;
+ const void * const *p5 = (const void * const *) bar;
+ const char * const *p6 = (const char * const *) bar;
+ void * const *p7 = (void * const *) bar;
+ char * const *p8 = (char * const *) bar;
+ const void ***p9 = (const void ***) bar; /* { dg-warning "cast" } */
+ const char ***p10 = (const char ***) bar;
+ void * const **p11 = (void * const **) bar; /* { dg-warning "cast" } */
+ char * const **p12 = (char * const **) bar;
+ void ** const *p13 = (void ** const *) bar;
+ char ** const *p14 = (char ** const *) bar;
+ const void * const **p15 = (const void * const **) bar; /* { dg-warning "cast" } */
+ const char * const **p16 = (const char * const **) bar;
+ const void ** const *p17 = (const void ** const *) bar; /* { dg-warning "cast" } */
+ const char ** const *p18 = (const char ** const *) bar;
+ void * const * const * p19 = (void * const * const *) bar;
+ char * const * const * p20 = (char * const * const *) bar;
+ const void * const * const *p21 = (const void * const * const *) bar;
+ const char * const * const *p22 = (const char * const * const *) bar;
+}
+
+void
+f4 (void * const **bar)
+{
+ const void ***p9 = (const void ***) bar; /* { dg-warning "cast" } */
+ void * const **p11 = (void * const **) bar;
+ void ** const *p13 = (void ** const *) bar; /* { dg-warning "cast" } */
+ const void * const **p15 = (const void * const **) bar; /* { dg-warning "cast" } */
+ const void ** const *p17 = (const void ** const *) bar; /* { dg-warning "cast" } */
+ void * const * const * p19 = (void * const * const *) bar;
+ const void * const * const *p21 = (const void * const * const *) bar;
+}
+
+void
+f5 (char ***bar)
+{
+ volatile const char ***p9 = (volatile const char ***) bar; /* { dg-warning "cast" } */
+ volatile char * const **p11 = (volatile char * const **) bar; /* { dg-warning "cast" } */
+ volatile char ** const *p13 = (volatile char ** const *) bar; /* { dg-warning "cast" } */
+ volatile const char * const **p15 = (volatile const char * const **) bar; /* { dg-warning "cast" } */
+ volatile const char ** const *p17 = (volatile const char ** const *) bar; /* { dg-warning "cast" } */
+ volatile char * const * const * p19 = (volatile char * const * const *) bar;
+ volatile const char * const * const *p21 = (volatile const char * const * const *) bar;
+}
+
+void
+f6 (char ***bar)
+{
+ const char * volatile **p9 = (const char * volatile **) bar; /* { dg-warning "cast" } */
+ char * volatile const **p11 = (char * volatile const **) bar; /* { dg-warning "cast" } */
+ char * volatile * const *p13 = (char * volatile * const *) bar;
+ const char * volatile const **p15 = (const char * volatile const **) bar; /* { dg-warning "cast" } */
+ const char * volatile * const *p17 = (const char * volatile * const *) bar; /* { dg-warning "cast" } */
+ char * volatile const * const * p19 = (char * volatile const * const *) bar;
+ const char * volatile const * const *p21 = (const char * volatile const * const *) bar;
+}
+
+void
+f7 (char ***bar)
+{
+ const char ** volatile *p9 = (const char ** volatile *) bar; /* { dg-warning "cast" } */
+ char * const * volatile *p11 = (char * const * volatile *) bar; /* { dg-warning "cast" } */
+ char ** volatile const *p13 = (char ** volatile const *) bar;
+ const char * const * volatile *p15 = (const char * const * volatile *) bar; /* { dg-warning "cast" } */
+ const char ** volatile const *p17 = (const char ** volatile const *) bar; /* { dg-warning "cast" } */
+ char * const * volatile const * p19 = (char * const * volatile const *) bar;
+ const char * const * volatile const *p21 = (const char * const * volatile const *) bar;
+}
+
+typedef int (intfn) (int);
+typedef intfn *pintfn;
+typedef const intfn *constfn;
+
+void
+f8 (constfn ***bar)
+{
+ const constfn *p1 = (const constfn *) bar;
+ const pintfn *p2 = (const pintfn *) bar;
+ const constfn **p3 = (const constfn **) bar;
+ const pintfn **p4 = (const pintfn **) bar;
+ const constfn * const *p5 = (const constfn * const *) bar;
+ const pintfn * const *p6 = (const pintfn * const *) bar;
+ constfn * const *p7 = (constfn * const *) bar;
+ pintfn * const *p8 = (pintfn * const *) bar;
+ const constfn ***p9 = (const constfn ***) bar; /* { dg-warning "cast" } */
+ const pintfn ***p10 = (const pintfn ***) bar; /* { dg-warning "cast" } */
+ constfn * const **p11 = (constfn * const **) bar; /* { dg-warning "cast" } */
+ pintfn * const **p12 = (pintfn * const **) bar; /* { dg-warning "cast" } */
+ constfn ** const *p13 = (constfn ** const *) bar;
+ pintfn ** const *p14 = (pintfn ** const *) bar;
+ const constfn * const **p15 = (const constfn * const **) bar; /* { dg-warning "cast" } */
+ const pintfn * const **p16 = (const pintfn * const **) bar; /* { dg-warning "cast" } */
+ const constfn ** const *p17 = (const constfn ** const *) bar; /* { dg-warning "cast" } */
+ const pintfn ** const *p18 = (const pintfn ** const *) bar; /* { dg-warning "cast" } */
+ constfn * const * const * p19 = (constfn * const * const *) bar;
+ pintfn * const * const * p20 = (pintfn * const * const *) bar;
+ const constfn * const * const *p21 = (const constfn * const * const *) bar;
+ const pintfn * const * const *p22 = (const pintfn * const * const *) bar;
+}
/* Top level of GCC compilers (cc1, cc1plus, etc.)
Copyright (C) 1987, 1988, 1989, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
- 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008
+ 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
Free Software Foundation, Inc.
This file is part of GCC.
{
expandargv (&argc, &argv);
- save_argv = (const char **) argv;
+ save_argv = CONST_CAST2 (const char **, char **, argv);
/* Initialization of GCC's environment, and diagnostics. */
general_init (argv[0]);
/* Parse the options and do minimal processing; basically just
enough to default flags appropriately. */
- decode_options (argc, (const char **) argv);
+ decode_options (argc, CONST_CAST2 (const char **, char **, argv));
init_local_tick ();
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