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re PR c++/45329 (When printing a list of candidate functions, explain why each function failed to match.)

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PR c++/45329
	PR c++/48934
	* cp-tree.h (fn_type_unification): Add `bool' parameter.
	* pt.c (enum template_base_result): Define.
	(unify_success, unify_unknown): Define.
	(unify_parameter_deduction_failure): Define.
	(unify_invalid, unify_cv_qual_mismatch, unify_type_mismatch): Define.
	(unify_parameter_pack_mismatch): Define.
	(unify_parameter_pack_inconsistent): Define.
	(unify_ptrmem_cst_mismatch, unify_vla_arg): Define.
	(unify_expression_unequal, unify_inconsistency): Define.
	(unify_method_type_error, unify_arity): Likewise.
	(unify_too_many_parameters, unify_too_few_parameters): Define.
	(unify_arg_conversion, unify_no_common_base): Define.
	(unify_illformed_ptrmem_cst_expr): Define.
	(unify_substitution_failure): Define.
	(unify_inconsistent_template_template_parameters): Define.
	(unify_template_deduction_failure): Define.
	(unify_template_argument_mismatch): Define.
	(unify_overload_resolution_failure): Define.
	(comp_template_args_with_info): New function, split out from...
	(comp_template_args): ...here.	Call it.
	(deduction_tsubst_fntype): Add `complain' parameter'.  Pass it
	to tsubst.
	(unify): Add `explain_p' parameter.  Pass to all relevant calls.
	Call above status functions when appropriate.
	(resolve_overloaded_unification, try_one_overload): Likewise.
	(type_unification, type_unification_real): Likewise.
	(unify_pack_expansion): Likewise.
	(get_template_base, try_class_unification): Likewise.
	(get_bindings, more_specialized_fn): Pass false to unification
	calls.
	(get_class_bindings, do_auto_deduction): Likewise.
	(convert_nontype_argument): Likewise.
	(fn_type_unification): Likewise.  Pass tf_warning_or_error if
	explain_p.
	(get_template_base): Add `explain_p' parameter and pass it to
	try_class_unification.	Return an enum template_base_result.
	* class.c (resolve_address_of_overloaded_function): Pass false to
	fn_type_unification.
	* call.c (enum rejection_reason_code): Add new codes.
	(struct rejection_reason): Add template_unification field.
	Add template_instantiation field.
	(template_unification_rejection): Define.
	(template_unification_error_rejection): Define.
	(template_instantiation_rejection): Define.
	(invalid_copy_with_fn_template_rejection): Define.
	(add_template_candidate): Pass false to unify.
	Provide more rejection reasons when possible.
	(print_template_unification_rejection): Define.
	(print_arity_rejection): Define, split out from...
	(print_z_candidate): ...here.  Add cases for new rejection
	reasons.

Co-Authored-By: Jason Merrill <jason@redhat.com>

From-SVN: r176365
This commit is contained in:
Nathan Froyd 2011-07-17 02:34:10 +00:00 • committed by Jason Merrill
parent c6f4a801a6
commit 3d2f686422
58 changed files with 872 additions and 277 deletions
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57
gcc/cp/ChangeLog
View file

@ -1,3 +1,60 @@
2011-07-16 Nathan Froyd <froydnj@codesourcery.com>
Jason Merrill <jason@redhat.com>
PR c++/45329
PR c++/48934
* cp-tree.h (fn_type_unification): Add `bool' parameter.
* pt.c (enum template_base_result): Define.
(unify_success, unify_unknown): Define.
(unify_parameter_deduction_failure): Define.
(unify_invalid, unify_cv_qual_mismatch, unify_type_mismatch): Define.
(unify_parameter_pack_mismatch): Define.
(unify_parameter_pack_inconsistent): Define.
(unify_ptrmem_cst_mismatch, unify_vla_arg): Define.
(unify_expression_unequal, unify_inconsistency): Define.
(unify_method_type_error, unify_arity): Likewise.
(unify_too_many_parameters, unify_too_few_parameters): Define.
(unify_arg_conversion, unify_no_common_base): Define.
(unify_illformed_ptrmem_cst_expr): Define.
(unify_substitution_failure): Define.
(unify_inconsistent_template_template_parameters): Define.
(unify_template_deduction_failure): Define.
(unify_template_argument_mismatch): Define.
(unify_overload_resolution_failure): Define.
(comp_template_args_with_info): New function, split out from...
(comp_template_args): ...here. Call it.
(deduction_tsubst_fntype): Add `complain' parameter'. Pass it
to tsubst.
(unify): Add `explain_p' parameter. Pass to all relevant calls.
Call above status functions when appropriate.
(resolve_overloaded_unification, try_one_overload): Likewise.
(type_unification, type_unification_real): Likewise.
(unify_pack_expansion): Likewise.
(get_template_base, try_class_unification): Likewise.
(get_bindings, more_specialized_fn): Pass false to unification
calls.
(get_class_bindings, do_auto_deduction): Likewise.
(convert_nontype_argument): Likewise.
(fn_type_unification): Likewise. Pass tf_warning_or_error if
explain_p.
(get_template_base): Add `explain_p' parameter and pass it to
try_class_unification. Return an enum template_base_result.
* class.c (resolve_address_of_overloaded_function): Pass false to
fn_type_unification.
* call.c (enum rejection_reason_code): Add new codes.
(struct rejection_reason): Add template_unification field.
Add template_instantiation field.
(template_unification_rejection): Define.
(template_unification_error_rejection): Define.
(template_instantiation_rejection): Define.
(invalid_copy_with_fn_template_rejection): Define.
(add_template_candidate): Pass false to unify.
Provide more rejection reasons when possible.
(print_template_unification_rejection): Define.
(print_arity_rejection): Define, split out from...
(print_z_candidate): ...here. Add cases for new rejection
reasons.
2011-07-15 Jason Merrill <jason@redhat.com>
* Make-lang.in (check-g++-strict-gc): New.

144
gcc/cp/call.c
View file

@ -434,7 +434,10 @@ enum rejection_reason_code {
rr_arity,
rr_explicit_conversion,
rr_arg_conversion,
rr_bad_arg_conversion
rr_bad_arg_conversion,
rr_template_unification,
rr_template_instantiation,
rr_invalid_copy
};
struct conversion_info {
@ -462,6 +465,24 @@ struct rejection_reason {
struct conversion_info conversion;
/* Same, but for bad argument conversions. */
struct conversion_info bad_conversion;
/* Information about template unification failures. These are the
parameters passed to fn_type_unification. */
struct {
tree tmpl;
tree explicit_targs;
tree targs;
const tree *args;
unsigned int nargs;
tree return_type;
unification_kind_t strict;
int flags;
} template_unification;
/* Information about template instantiation failures. These are the
parameters passed to instantiate_template. */
struct {
tree tmpl;
tree targs;
} template_instantiation;
} u;
};
@ -622,6 +643,50 @@ explicit_conversion_rejection (tree from, tree to)
return r;
}
static struct rejection_reason *
template_unification_rejection (tree tmpl, tree explicit_targs, tree targs,
const tree *args, unsigned int nargs,
tree return_type, unification_kind_t strict,
int flags)
{
size_t args_n_bytes = sizeof (*args) * nargs;
tree *args1 = (tree *) conversion_obstack_alloc (args_n_bytes);
struct rejection_reason *r = alloc_rejection (rr_template_unification);
r->u.template_unification.tmpl = tmpl;
r->u.template_unification.explicit_targs = explicit_targs;
r->u.template_unification.targs = targs;
/* Copy args to our own storage. */
memcpy (args1, args, args_n_bytes);
r->u.template_unification.args = args1;
r->u.template_unification.nargs = nargs;
r->u.template_unification.return_type = return_type;
r->u.template_unification.strict = strict;
r->u.template_unification.flags = flags;
return r;
}
static struct rejection_reason *
template_unification_error_rejection (void)
{
return alloc_rejection (rr_template_unification);
}
static struct rejection_reason *
template_instantiation_rejection (tree tmpl, tree targs)
{
struct rejection_reason *r = alloc_rejection (rr_template_instantiation);
r->u.template_instantiation.tmpl = tmpl;
r->u.template_instantiation.targs = targs;
return r;
}
static struct rejection_reason *
invalid_copy_with_fn_template_rejection (void)
{
struct rejection_reason *r = alloc_rejection (rr_invalid_copy);
return r;
}
/* Dynamically allocate a conversion. */
static conversion *
@ -2859,6 +2924,7 @@ add_template_candidate_real (struct z_candidate **candidates, tree tmpl,
int i;
tree fn;
struct rejection_reason *reason = NULL;
int errs;
/* We don't do deduction on the in-charge parameter, the VTT
parameter or 'this'. */
@ -2901,17 +2967,31 @@ add_template_candidate_real (struct z_candidate **candidates, tree tmpl,
}
gcc_assert (ia == nargs_without_in_chrg);
errs = errorcount+sorrycount;
i = fn_type_unification (tmpl, explicit_targs, targs,
args_without_in_chrg,
nargs_without_in_chrg,
return_type, strict, flags);
return_type, strict, flags, false);
if (i != 0)
goto fail;
{
/* Don't repeat unification later if it already resulted in errors. */
if (errorcount+sorrycount == errs)
reason = template_unification_rejection (tmpl, explicit_targs,
targs, args_without_in_chrg,
nargs_without_in_chrg,
return_type, strict, flags);
else
reason = template_unification_error_rejection ();
goto fail;
}
fn = instantiate_template (tmpl, targs, tf_none);
if (fn == error_mark_node)
goto fail;
{
reason = template_instantiation_rejection (tmpl, targs);
goto fail;
}
/* In [class.copy]:
@ -2940,7 +3020,10 @@ add_template_candidate_real (struct z_candidate **candidates, tree tmpl,
tree arg_types = FUNCTION_FIRST_USER_PARMTYPE (fn);
if (arg_types && same_type_p (TYPE_MAIN_VARIANT (TREE_VALUE (arg_types)),
ctype))
goto fail;
{
reason = invalid_copy_with_fn_template_rejection ();
goto fail;
}
}
if (obj != NULL_TREE)
@ -3108,6 +3191,18 @@ print_conversion_rejection (location_t loc, struct conversion_info *info)
info->n_arg+1, info->from_type, info->to_type);
}
/* Print information about a candidate with WANT parameters and we found
HAVE. */
static void
print_arity_information (location_t loc, unsigned int have, unsigned int want)
{
inform_n (loc, want,
" candidate expects %d argument, %d provided",
" candidate expects %d arguments, %d provided",
want, have);
}
/* Print information about one overload candidate CANDIDATE. MSGSTR
is the text to print before the candidate itself.
@ -3154,10 +3249,8 @@ print_z_candidate (const char *msgstr, struct z_candidate *candidate)
switch (r->code)
{
case rr_arity:
inform_n (loc, r->u.arity.expected,
" candidate expects %d argument, %d provided",
" candidate expects %d arguments, %d provided",
r->u.arity.expected, r->u.arity.actual);
print_arity_information (loc, r->u.arity.actual,
r->u.arity.expected);
break;
case rr_arg_conversion:
print_conversion_rejection (loc, &r->u.conversion);
@ -3171,6 +3264,39 @@ print_z_candidate (const char *msgstr, struct z_candidate *candidate)
"conversion", r->u.conversion.from_type,
r->u.conversion.to_type);
break;
case rr_template_unification:
/* We use template_unification_error_rejection if unification caused
actual non-SFINAE errors, in which case we don't need to repeat
them here. */
if (r->u.template_unification.tmpl == NULL_TREE)
{
inform (loc, " substitution of deduced template arguments "
"resulted in errors seen above");
break;
}
/* Re-run template unification with diagnostics. */
inform (loc, " template argument deduction/substitution failed:");
fn_type_unification (r->u.template_unification.tmpl,
r->u.template_unification.explicit_targs,
r->u.template_unification.targs,
r->u.template_unification.args,
r->u.template_unification.nargs,
r->u.template_unification.return_type,
r->u.template_unification.strict,
r->u.template_unification.flags,
true);
break;
case rr_template_instantiation:
/* Re-run template instantiation with diagnostics. */
instantiate_template (r->u.template_instantiation.tmpl,
r->u.template_instantiation.targs,
tf_warning_or_error);
break;
case rr_invalid_copy:
inform (loc,
" a constructor taking a single argument of its own "
"class type is invalid");
break;
case rr_none:
default:
/* This candidate didn't have any issues or we failed to

2
gcc/cp/class.c
View file

@ -6570,7 +6570,7 @@ resolve_address_of_overloaded_function (tree target_type,
targs = make_tree_vec (DECL_NTPARMS (fn));
if (fn_type_unification (fn, explicit_targs, targs, args, nargs,
target_ret_type, DEDUCE_EXACT,
LOOKUP_NORMAL))
LOOKUP_NORMAL, false))
/* Argument deduction failed. */
continue;

3
gcc/cp/cp-tree.h
View file

@ -5161,7 +5161,8 @@ extern tree instantiate_class_template (tree);
extern tree instantiate_template (tree, tree, tsubst_flags_t);
extern int fn_type_unification (tree, tree, tree,
const tree *, unsigned int,
tree, unification_kind_t, int);
tree, unification_kind_t, int,
bool);
extern void mark_decl_instantiated (tree, int);
extern int more_specialized_fn (tree, tree, int);
extern void do_decl_instantiation (tree, tree);

683
gcc/cp/pt.c
View file

File diff suppressed because it is too large Load diff

58
gcc/testsuite/ChangeLog
View file

@ -1,3 +1,61 @@
2011-07-16 Nathan Froyd <froydnj@codesourcery.com>
Jason Merrill <jason@redhat.com>
PR c++/45329
PR c++/48934
* g++.dg/cpp0x/decltype29.C: Adjust.
* g++.dg/cpp0x/error4.C: Adjust.
* g++.dg/cpp0x/sfinae26.C: Adjust.
* g++.dg/cpp0x/variadic105.C: Adjust.
* g++.dg/template/deduce3.C: Adjust.
* g++.dg/template/error45.C: Adjust.
* g++.dg/template/ptrmem2.C: Adjust.
* g++.dg/template/sfinae2.C: Adjust.
* g++.old-deja/g++.pt/crash60.C: Adjust.
* g++.old-deja/g++.pt/unify6.C: Adjust.
* g++.dg/cpp0x/lambda/lambda-ice2.C: Adjust.
* g++.dg/cpp0x/nullptr15.C: Adjust.
* g++.dg/cpp0x/pr31431-2.C: Adjust.
* g++.dg/cpp0x/pr31431.C: Adjust.
* g++.dg/cpp0x/pr31434.C: Adjust.
* g++.dg/cpp0x/sfinae11.C: Adjust
* g++.dg/cpp0x/temp_default2.C: Adjust.
* g++.dg/cpp0x/trailing4.C: Adjust.
* g++.dg/cpp0x/variadic-ex3.C: Adjust.
* g++.dg/cpp0x/variadic-ex4.C: Adjust.
* g++.dg/cpp0x/variadic105.C: Adjust.
* g++.dg/cpp0x/vt-37737-2.C: Adjust.
* g++.dg/ext/vla2.C: Adjust.
* g++.dg/other/ptrmem10.C: Adjust.
* g++.dg/other/ptrmem11.C: Adjust.
* g++.dg/overload/unknown1.C: Adjust.
* g++.dg/template/conv11.C: Adjust.
* g++.dg/template/dependent-expr5.C: Adjust.
* g++.dg/template/friend.C: Adjust.
* g++.dg/template/incomplete2.C: Adjust.
* g++.dg/template/local4.C: Adjust.
* g++.dg/template/local6.C: Adjust.
* g++.dg/template/operator9.C: Adjust.
* g++.dg/template/ttp25.C: Adjust.
* g++.dg/template/unify10.C: Adjust.
* g++.dg/template/unify11.C: Adjust.
* g++.dg/template/unify6.C: Adjust.
* g++.dg/template/unify9.C: Adjust.
* g++.dg/template/varmod1.C: Adjust.
* g++.old-deja/g++.brendan/crash56.C: Adjust.
* g++.old-deja/g++.pt/crash28.C: Adjust.
* g++.old-deja/g++.pt/explicit41.C: Adjust.
* g++.old-deja/g++.pt/explicit77.C: Adjust.
* g++.old-deja/g++.pt/expr2.C: Adjust.
* g++.old-deja/g++.pt/ptrmem6.C: Adjust.
* g++.old-deja/g++.pt/spec5.C: Adjust.
* g++.old-deja/g++.pt/spec6.C: Adjust.
* g++.old-deja/g++.pt/unify4.C: Adjust.
* g++.old-deja/g++.pt/unify8.C: Adjust.
* g++.old-deja/g++.robertl/eb98.C: Adjust.
* g++.dg/overload/template5.C: New testcase.
* g++.dg/template/overload12.C: New testcase.
2011-07-11 Tobias Burnus <burnus@net-b.de>
* gfortran.dg/coarray_14.f90: Remove dg-error "sorry not implemented".

2
gcc/testsuite/g++.dg/cpp0x/decltype29.C
View file

@ -13,7 +13,7 @@ decltype (ft<F> (F()))
ft() {} // { dg-error "depth" }
int main() {
ft<struct a*, 0>(); // { dg-error "no match" }
ft<struct a*, 0>(); // { dg-error "no match|wrong number" }
}
// { dg-prune-output "note" }

2
gcc/testsuite/g++.dg/cpp0x/error4.C
View file

@ -10,7 +10,7 @@ struct S {
static U get(const volatile T&);
template<typename U>
static decltype(*declval<U>()) get(...);
static decltype(*declval<U>()) get(...); // { dg-error "operator*" }
typedef decltype(get<T>(declval<T>())) type; // { dg-error "no match" }
};

3
gcc/testsuite/g++.dg/cpp0x/lambda/lambda-ice2.C
View file

@ -9,8 +9,9 @@ decltype(F()) run(F f) // { dg-message "note" }
int main()
{
auto l = []() { return 5; };
auto l = []() { return 5; }; // { dg-error "lambda closure type" }
run(l); // { dg-error "no match" }
// { dg-message "candidate" "candidate note" { target *-*-* } 14 }
// { dg-error "use of deleted function" "candidate explanation" { target *-*-* } 5 }
}

4
gcc/testsuite/g++.dg/cpp0x/nullptr15.C
View file

@ -17,10 +17,10 @@ void test_g()
// Deduction to nullptr_t, no deduction to pointer type
//
g(nullptr); // { dg-error "no matching function for call to " }
// { dg-message "candidate" "candidate note" { target *-*-* } 19 }
// { dg-message "(candidate|mismatched types)" "candidate note" { target *-*-* } 19 }
type_equal<float*>(g((float*)nullptr));
decltype(nullptr) mynull = 0;
g(mynull); // { dg-error "no matching function for call to " }
// { dg-message "candidate" "candidate note" { target *-*-* } 23 }
// { dg-message "(candidate|mismatched types)" "candidate note" { target *-*-* } 23 }
type_equal<float*>(g((float*)mynull));
}

2
gcc/testsuite/g++.dg/cpp0x/pr31431-2.C
View file

@ -4,5 +4,5 @@ template<typename, typename..., typename> void foo(); // { dg-message "note" }
void bar()
{
foo<int>(); // { dg-error "no matching function" }
// { dg-message "candidate" "candidate note" { target *-*-* } 6 }
// { dg-message "(candidate|deduce template parameter)" "candidate note" { target *-*-* } 6 }
}

2
gcc/testsuite/g++.dg/cpp0x/pr31431.C
View file

@ -4,5 +4,5 @@ template<typename..., typename> void foo(); // { dg-message "note" }
void bar()
{
foo<int>(); // { dg-error "no matching function" }
// { dg-message "candidate" "candidate note" { target *-*-* } 6 }
// { dg-message "(candidate|deduce template parameter)" "candidate note" { target *-*-* } 6 }
}

2
gcc/testsuite/g++.dg/cpp0x/pr31434.C
View file

@ -8,5 +8,5 @@ template<typename... T> int foo(const T&) // { dg-error "not expanded with|T" }
void bar()
{
foo(0); // { dg-error "no matching" }
// { dg-message "candidate" "candidate note" { target *-*-* } 10 }
// { dg-message "(candidate|cannot convert)" "candidate note" { target *-*-* } 10 }
}

2
gcc/testsuite/g++.dg/cpp0x/sfinae11.C
View file

@ -51,6 +51,6 @@ int main()
// static_assert( noexcept( f3(y) ), "shall be ill-formed(OK)." );
noexcept( f1(z) ); // { dg-message "required" }
static_assert( noexcept( f2(z) ), "shall be ill-formed." ); // { dg-error "no match" }
static_assert( noexcept( f2(z) ), "shall be ill-formed." ); // { dg-error "no match|could not convert" }
noexcept( f3(z) ); // { dg-message "required" }
}

2
gcc/testsuite/g++.dg/cpp0x/sfinae26.C
View file

@ -32,7 +32,7 @@ struct S {
template<class... U,
typename enable_if<and_<is_same<T, U>...>::value>::type*& = enabler
>
S(U...){} // #
S(U...){} // { dg-error "no type named 'type'" }
};
S<bool> s(0); // { dg-error "no match" }

2
gcc/testsuite/g++.dg/cpp0x/temp_default2.C
View file

@ -8,7 +8,7 @@ void g()
f(1, 'c'); // f<int,char>(1,'c')
f(1); // f<int,double>(1,0)
f(); // { dg-error "no matching function" }
// { dg-message "candidate" "candidate note" { target *-*-* } 10 }
// { dg-message "(candidate|deduce template parameter)" "candidate note" { target *-*-* } 10 }
f<int>(); // f<int,double>(0,0)
f<int,char>(); // f<int,char>(0,0)
}

2
gcc/testsuite/g++.dg/cpp0x/trailing4.C
View file

@ -8,5 +8,5 @@ auto f(T,U) -> decltype(T() + U())
template<class T> void g(T){} // { dg-message "note" }
int main() { g(f); } // { dg-error "no matching function" }
// { dg-message "candidate" "candidate note" { target *-*-* } 10 }
// { dg-message "(candidate|deduce template parameter)" "candidate note" { target *-*-* } 10 }

4
gcc/testsuite/g++.dg/cpp0x/variadic-ex3.C
View file

@ -4,8 +4,8 @@ void g()
{
int i = f<int>(5.6);
int j = f(5.6); // { dg-error "no matching" }
// { dg-message "candidate" "candidate note" { target *-*-* } 6 }
// { dg-message "(candidate|deduce template parameter)" "candidate note" { target *-*-* } 6 }
f<void>(f<int, bool>);
f<void>(f<int>); // { dg-error "no matching" }
// { dg-message "candidate" "candidate note" { target *-*-* } 9 }
// { dg-message "(candidate|deduce template parameter)" "candidate note" { target *-*-* } 9 }
}

2
gcc/testsuite/g++.dg/cpp0x/variadic-ex4.C
View file

@ -8,6 +8,6 @@ void g()
f<int>("aa",3.0); // Y is deduced to be char*, and
// Z is deduced to be double
f("aa",3.0); // { dg-error "no matching" }
// { dg-message "candidate" "candidate note" { target *-*-* } 10 }
// { dg-message "(candidate|deduce template parameter)" "candidate note" { target *-*-* } 10 }
f2<char, short, int, long>(); // okay
}

1
gcc/testsuite/g++.dg/cpp0x/variadic105.C
View file

@ -21,4 +21,5 @@ struct call_sum {
int main() {
// This shouldn't be an error; this is bug 35722.
reverse<call_sum>(1,2); // { dg-bogus "no match" "" { xfail *-*-* } }
// { dg-bogus "sorry, unimplemented" "candidate explanation" { xfail *-*-* } 6 }
}

2
gcc/testsuite/g++.dg/cpp0x/vt-37737-2.C
View file

@ -4,7 +4,7 @@ template<class U, class... T>
void f() // { dg-message "note" }
{
f<T...>(); // { dg-error "no matching" }
// { dg-message "candidate" "candidate note" { target *-*-* } 6 }
// { dg-message "(candidate|deduce template parameter)" "candidate note" { target *-*-* } 6 }
}
template<>

2
gcc/testsuite/g++.dg/ext/vla2.C
View file

@ -15,5 +15,5 @@ void bar(int i)
char d[i] ;
begin(d); // { dg-error "no matching function" "" }
// { dg-message "candidate" "candidate note" { target *-*-* } 17 }
// { dg-message "(candidate|valid template argument)" "candidate note" { target *-*-* } 17 }
}

2
gcc/testsuite/g++.dg/other/ptrmem10.C
View file

@ -13,7 +13,7 @@ template <class C>
static void
bar(C *c, void (C::*m) ())
{
foo<C,m>((void *)c);// { dg-error "(not a valid template arg|pointer-to-member|no matching fun)" }
foo<C,m>((void *)c);// { dg-error "(not a valid template arg|pointer-to-member|no matching fun|could not convert)" }
// { dg-message "candidate" "candidate note" { target *-*-* } 16 }
}

2
gcc/testsuite/g++.dg/other/ptrmem11.C
View file

@ -14,7 +14,7 @@ template <typename T>
int
bar(int T::* p)
{
return foo<p>(0);// { dg-error "(not a valid template arg|no matching func|pointer-to-member)" }
return foo<p>(0);// { dg-error "(not a valid template arg|no matching func|pointer-to-member|could not convert)" }
// { dg-message "candidate" "candidate note" { target *-*-* } 17 }
}

15
gcc/testsuite/g++.dg/overload/template5.C Normal file
View file

@ -0,0 +1,15 @@
// { dg-do compile }
template<typename T>
int low(T a, T b, T c) { return a + b + c; } // { dg-message "template" }
template<typename T>
int high(T a, T b, T c) { return a + b + c; } // { dg-message "template" }
int test (void)
{
low (5, 6); // { dg-error "no matching function" }
// { dg-message "(candidate|3 arguments, 2 provided)" "" { target *-*-* } 11 }
high (5, 6, 7, 8); // { dg-error "no matching function" }
// { dg-message "(candidate|3 arguments, 4 provided)" "" { target *-*-* } 13 }
}

2
gcc/testsuite/g++.dg/overload/unknown1.C
View file

@ -6,5 +6,5 @@ template <typename T> void bar(T f); // { dg-message "note" }
void baz() {
bar(foo); // { dg-error "<unresolved overloaded function type>" }
// { dg-message "candidate" "candidate note" { target *-*-* } 8 }
// { dg-message "(candidate|deduce template parameter)" "candidate note" { target *-*-* } 8 }
}

2
gcc/testsuite/g++.dg/template/conv11.C
View file

@ -7,5 +7,5 @@ struct A
int main()
{
A().operator int(); // { dg-error "operator int" }
// { dg-message "candidate" "candidate note" { target *-*-* } 9 }
// { dg-message "(candidate|mismatched types)" "candidate note" { target *-*-* } 9 }
}

4
gcc/testsuite/g++.dg/template/deduce3.C
View file

@ -4,8 +4,8 @@ void f(int, T (*)() = 0); // { dg-message "note" }
void g() {
typedef int A[2];
f<A>(0); // { dg-error "" }
// { dg-message "candidate" "candidate note" { target *-*-* } 6 }
// { dg-error "returning an array" "candidate explanation" { target *-*-* } 2 }
typedef void F();
f<F>(0); // { dg-error "" }
// { dg-message "candidate" "candidate note" { target *-*-* } 9 }
// { dg-error "returning a function" "candidate explanation" { target *-*-* } 2 }
}

32
gcc/testsuite/g++.dg/template/dependent-expr5.C
View file

@ -40,12 +40,12 @@ struct foo {
bind (&bar::baikt);
bind (&barf); // { dg-error "no matching function" }
// { dg-message "candidate" "candidate note" { target *-*-* } 42 }
// { dg-message "(candidate|deduce template parameter)" "candidate note" { target *-*-* } 42 }
bind (&foo::barf); // { dg-error "no matching function" }
// { dg-message "candidate" "candidate note" { target *-*-* } 44 }
// { dg-message "(candidate|deduce template parameter)" "candidate note" { target *-*-* } 44 }
bindm (&barf); // { dg-error "no matching function" }
// { dg-message "candidate" "candidate note" { target *-*-* } 47 }
// { dg-message "(candidate|deduce template parameter)" "candidate note" { target *-*-* } 47 }
bindm (&foo::barf);
bindn (&barf);
@ -53,15 +53,15 @@ struct foo {
bindb (&barf);
bindb (&foo::barf); // { dg-error "ambiguous" }
// { dg-message "candidate" "candidate note" { target *-*-* } 55 }
// { dg-message "(candidate|deduce template parameter)" "candidate note" { target *-*-* } 55 }
bind (&bark); // { dg-error "no matching function" }
// { dg-message "candidate" "candidate note" { target *-*-* } 58 }
// { dg-message "(candidate|deduce template parameter)" "candidate note" { target *-*-* } 58 }
bind (&bar::bark); // { dg-error "no matching function" }
// { dg-message "candidate" "candidate note" { target *-*-* } 60 }
// { dg-message "(candidate|deduce template parameter)" "candidate note" { target *-*-* } 60 }
bindm (&bark); // { dg-error "no matching function" }
// { dg-message "candidate" "candidate note" { target *-*-* } 63 }
// { dg-message "(candidate|deduce template parameter)" "candidate note" { target *-*-* } 63 }
bindm (&bar::bark);
bindn (&bark);
@ -69,7 +69,7 @@ struct foo {
bindb (&bark);
bindb (&bar::bark); // { dg-error "ambiguous" }
// { dg-message "candidate" "candidate note" { target *-*-* } 71 }
// { dg-message "(candidate|deduce template parameter)" "candidate note" { target *-*-* } 71 }
}
};
@ -92,12 +92,12 @@ struct foo {
bind (&barT::baikt);
bind (&barf); // { dg-error "no matching function" }
// { dg-message "candidate" "candidate note" { target *-*-* } 94 }
// { dg-message "(candidate|deduce template parameter)" "candidate note" { target *-*-* } 94 }
bind (&foo::barf); // { dg-error "no matching function" }
// { dg-message "candidate" "candidate note" { target *-*-* } 96 }
// { dg-message "(candidate|deduce template parameter)" "candidate note" { target *-*-* } 96 }
bindm (&barf); // { dg-error "no matching function" }
// { dg-message "candidate" "candidate note" { target *-*-* } 99 }
// { dg-message "(candidate|deduce template parameter)" "candidate note" { target *-*-* } 99 }
bindm (&foo::barf);
bindn (&barf);
@ -105,15 +105,15 @@ struct foo {
bindb (&barf);
bindb (&foo::barf); // { dg-error "ambiguous" }
// { dg-message "candidate" "candidate note" { target *-*-* } 107 }
// { dg-message "(candidate|deduce template parameter)" "candidate note" { target *-*-* } 107 }
bind (&bark); // { dg-error "no matching function" }
// { dg-message "candidate" "candidate note" { target *-*-* } 110 }
// { dg-message "(candidate|deduce template parameter)" "candidate note" { target *-*-* } 110 }
bind (&barT::bark); // { dg-error "no matching function" }
// { dg-message "candidate" "candidate note" { target *-*-* } 112 }
// { dg-message "(candidate|deduce template parameter)" "candidate note" { target *-*-* } 112 }
bindm (&bark); // { dg-error "no matching function" }
// { dg-message "candidate" "candidate note" { target *-*-* } 115 }
// { dg-message "(candidate|deduce template parameter)" "candidate note" { target *-*-* } 115 }
bindm (&barT::bark);
bindn (&bark);
@ -121,7 +121,7 @@ struct foo {
bindb (&bark);
bindb (&barT::bark); // { dg-error "ambiguous" }
// { dg-message "candidate" "candidate note" { target *-*-* } 123 }
// { dg-message "(candidate|deduce template parameter)" "candidate note" { target *-*-* } 123 }
}
};

2
gcc/testsuite/g++.dg/template/error45.C
View file

@ -11,7 +11,7 @@ struct enable_if< true, T >
template < typename T >
struct enable_if< true, T >::type
f( T x );
f( T x ); // { dg-error "not a class type" }
void
g( void )

2
gcc/testsuite/g++.dg/template/friend.C
View file

@ -26,5 +26,5 @@ int main()
{
s<int>::t y;
cout << y; // { dg-error "" }
// { dg-message "candidate" "candidate note" { target *-*-* } 28 }
// { dg-message "(candidate|deduce template parameter)" "candidate note" { target *-*-* } 28 }
}

2
gcc/testsuite/g++.dg/template/incomplete2.C
View file

@ -9,6 +9,6 @@ A a; // { dg-error "incomplete type" }
void bar()
{
foo<a>(); // { dg-error "no matching function" }
foo<a>(); // { dg-error "(no matching function|could not convert)" }
// { dg-message "candidate" "candidate note" { target *-*-* } 12 }
}

2
gcc/testsuite/g++.dg/template/local4.C
View file

@ -5,6 +5,6 @@ template <typename T> void foo() {} // { dg-message "note" }
int main () {
struct S {};
foo<S> (); // { dg-error "match" }
foo<S> (); // { dg-error "(match|template argument for|trying to instantiate)" }
// { dg-message "candidate" "candidate note" { target *-*-* } 8 }
}

2
gcc/testsuite/g++.dg/template/local6.C
View file

@ -5,7 +5,7 @@ template <class T> struct PCVector2 // { dg-message "note" }
PCVector2<T> operator- (const PCVector2<T> &ov) const
{
return PCVector2<T>(ov.xFIELD, ov.yFIELD); // { dg-error "matching" }
// { dg-message "candidate" "candidate note" { target *-*-* } 7 }
// { dg-message "(candidate|expects 1 argument, 2 provided|cannot convert)" "candidate note" { target *-*-* } 7 }
}
T xFIELD, yFIELD;

2
gcc/testsuite/g++.dg/template/operator9.C
View file

@ -5,6 +5,6 @@ template<operator+> void foo(); // { dg-error "before|non-function|template" }
void bar()
{
foo(); // { dg-error "no matching function" }
// { dg-message "candidate" "candidate note" { target *-*-* } 7 }
// { dg-message "(candidate|deduce template parameter)" "candidate note" { target *-*-* } 7 }
}

17
gcc/testsuite/g++.dg/template/overload12.C Normal file
View file

@ -0,0 +1,17 @@
// { dg-do compile }
struct S {int x; int y;};
template<typename T>
int foo(T a, T b) {return a + b;} // { dg-message "template" }
template<typename T, typename T2>
int foo(T a, T2& b, T2 c) {return a + b;} // { dg-message "template" }
int foo(char*, S&); // { dg-message "foo" }
// { dg-message "candidate expects 2 arguments, 3 provided" "arity" { target *-*-* } 8 }
int foo2(int x)
{
S s={1,2};
char c;
foo(c, 2, c); // { dg-error "no matching function" }
// { dg-message "(candidate|deduced conflicting types for)" "candidate note" { target *-*-* } 15 }
}

2
gcc/testsuite/g++.dg/template/ptrmem2.C
View file

@ -7,7 +7,7 @@
struct A {};
template <typename T> T A::* Foo (); // { dg-message "note" }
template <typename T> T A::* Foo (); // { dg-error "reference" }
void Baz ()
{

2
gcc/testsuite/g++.dg/template/sfinae2.C
View file

@ -8,7 +8,7 @@ template<int T> struct cl {
const static int value = T;
};
template<int I> void fn (char (*) [cl<I>::value] = 0 ); // { dg-message "note" }
template<int I> void fn (char (*) [cl<I>::value] = 0 ); // { dg-error "zero-size array" }
void foo (void)
{

6
gcc/testsuite/g++.dg/template/ttp25.C
View file

@ -18,12 +18,12 @@ void f4(T, C<5>); // { dg-message "note" }
template<int N> struct X {};
void g() {
f1(5l, X<5>()); // { dg-error "no matching" }
// { dg-message "candidate" "candidate note" { target *-*-* } 20 }
// { dg-message "(candidate|inconsistent with)" "candidate note" { target *-*-* } 20 }
f2(X<5>(), 5);
f3(X<5>(), 5l); // { dg-error "no matching" }
// { dg-message "candidate" "candidate note" { target *-*-* } 23 }
// { dg-message "(candidate|inconsistent with)" "candidate note" { target *-*-* } 23 }
f4(5, X<5>());
f4(5l, X<5>()); // { dg-error "no matching" }
// { dg-message "candidate" "candidate note" { target *-*-* } 26 }
// { dg-message "(candidate|inconsistent with)" "candidate note" { target *-*-* } 26 }
f4((short)5, X<5>());
}

24
gcc/testsuite/g++.dg/template/unify10.C
View file

@ -26,34 +26,34 @@ void cvFunction(void (CLASS::* method)() const volatile) {} // { dg-message "not
int main() {
mFunction(&MyClass::mMethod);
mFunction(&MyClass::cMethod); // { dg-error "no matching function" }
// { dg-message "candidate" "candidate note" { target *-*-* } 28 }
// { dg-message "(candidate|incompatible cv-qualifiers)" "candidate note" { target *-*-* } 28 }
mFunction(&MyClass::vMethod); // { dg-error "no matching function" }
// { dg-message "candidate" "candidate note" { target *-*-* } 30 }
// { dg-message "(candidate|incompatible cv-qualifiers)" "candidate note" { target *-*-* } 30 }
mFunction(&MyClass::cvMethod); // { dg-error "no matching function" }
// { dg-message "candidate" "candidate note" { target *-*-* } 32 }
// { dg-message "(candidate|incompatible cv-qualifiers)" "candidate note" { target *-*-* } 32 }
cFunction(&MyClass::mMethod); // { dg-error "no matching function" }
// { dg-message "candidate" "candidate note" { target *-*-* } 35 }
// { dg-message "(candidate|incompatible cv-qualifiers)" "candidate note" { target *-*-* } 35 }
cFunction(&MyClass::cMethod);
cFunction(&MyClass::vMethod); // { dg-error "no matching function" }
// { dg-message "candidate" "candidate note" { target *-*-* } 38 }
// { dg-message "(candidate|incompatible cv-qualifiers)" "candidate note" { target *-*-* } 38 }
cFunction(&MyClass::cvMethod); // { dg-error "no matching function" }
// { dg-message "candidate" "candidate note" { target *-*-* } 40 }
// { dg-message "(candidate|incompatible cv-qualifiers)" "candidate note" { target *-*-* } 40 }
vFunction(&MyClass::mMethod); // { dg-error "no matching function" }
// { dg-message "candidate" "candidate note" { target *-*-* } 43 }
// { dg-message "(candidate|incompatible cv-qualifiers)" "candidate note" { target *-*-* } 43 }
vFunction(&MyClass::cMethod); // { dg-error "no matching function" }
// { dg-message "candidate" "candidate note" { target *-*-* } 45 }
// { dg-message "(candidate|incompatible cv-qualifiers)" "candidate note" { target *-*-* } 45 }
vFunction(&MyClass::vMethod);
vFunction(&MyClass::cvMethod); // { dg-error "no matching function" }
// { dg-message "candidate" "candidate note" { target *-*-* } 48 }
// { dg-message "(candidate|incompatible cv-qualifiers)" "candidate note" { target *-*-* } 48 }
cvFunction(&MyClass::mMethod); // { dg-error "no matching function" }
// { dg-message "candidate" "candidate note" { target *-*-* } 51 }
// { dg-message "(candidate|incompatible cv-qualifiers)" "candidate note" { target *-*-* } 51 }
cvFunction(&MyClass::cMethod); // { dg-error "no matching function" }
// { dg-message "candidate" "candidate note" { target *-*-* } 53 }
// { dg-message "(candidate|incompatible cv-qualifiers)" "candidate note" { target *-*-* } 53 }
cvFunction(&MyClass::vMethod); // { dg-error "no matching function" }
// { dg-message "candidate" "candidate note" { target *-*-* } 55 }
// { dg-message "(candidate|incompatible cv-qualifiers)" "candidate note" { target *-*-* } 55 }
cvFunction(&MyClass::cvMethod);
return 0;

2
gcc/testsuite/g++.dg/template/unify11.C
View file

@ -20,7 +20,7 @@ struct B
C (U t)
{
A a;
A b = foo (this, a, t); // { dg-error "no matching function" }
A b = foo (this, a, t); // { dg-error "(no matching function|is not a)" }
// { dg-message "candidate" "candidate note" { target *-*-* } 23 }
}
} c;

2
gcc/testsuite/g++.dg/template/unify6.C
View file

@ -19,5 +19,5 @@ void Bar ()
Foo3 (&Baz);
Foo3 (&Baz, &Baz); // { dg-error "no matching function" "" }
// { dg-message "candidate" "candidate note" { target *-*-* } 21 }
// { dg-message "(candidate|incompatible cv-qualifiers)" "candidate note" { target *-*-* } 21 }
}

2
gcc/testsuite/g++.dg/template/unify7.C
View file

@ -11,5 +11,5 @@ int main()
{
Foo (f);
Baz (f); // { dg-error "no matching function" "" }
// { dg-message "candidate" "candidate note" { target *-*-* } 13 }
// { dg-message "(candidate|incompatible cv-qualifiers)" "candidate note" { target *-*-* } 13 }
}

2
gcc/testsuite/g++.dg/template/unify9.C
View file

@ -14,5 +14,5 @@ const X *x;
int main () {
f (*x, &X::g); // { dg-error "no matching function" }
// { dg-message "candidate" "candidate note" { target *-*-* } 16 }
// { dg-message "(candidate|incompatible cv-qualifiers)" "candidate note" { target *-*-* } 16 }
}

2
gcc/testsuite/g++.dg/template/varmod1.C
View file

@ -7,5 +7,5 @@ void bar()
int i;
int A[i][i];
foo(A); // { dg-error "" }
// { dg-message "candidate" "candidate note" { target *-*-* } 9 }
// { dg-message "(candidate|not a valid template argument)" "candidate note" { target *-*-* } 9 }
}

4
gcc/testsuite/g++.old-deja/g++.brendan/crash56.C
View file

@ -278,7 +278,7 @@ SetLD<T>::remove(const T& item)
Vix x;
for (first(x); 0 != x && this->REMOVE_CURRENT != a; next(x, a))
a = operator()(x) == item ? this->REMOVE_CURRENT: this->NORMAL; // { dg-error "" } .*
// { dg-message "candidate" "candidate note" { target *-*-* } 280 }
// { dg-message "(candidate|not derived from)" "candidate note" { target *-*-* } 280 }
}
template<class T>
bool
@ -287,7 +287,7 @@ SetLD<T>::contains(const T& item) const
Vix x;
for (first(x); 0 != x; next(x)) {
if (operator()(x) == item)// { dg-error "" } .*
// { dg-message "candidate" "candidate note" { target *-*-* } 289 }
// { dg-message "(candidate|not derived from)" "candidate note" { target *-*-* } 289 }
return TRUE;
}
return FALSE;

2
gcc/testsuite/g++.old-deja/g++.pt/crash28.C
View file

@ -11,5 +11,5 @@ void f(unsigned int n) {
int x[n];
asize(x); // { dg-error "" } no matching function
// { dg-message "candidate" "candidate note" { target *-*-* } 13 }
// { dg-message "(candidate|not a valid template argument)" "candidate note" { target *-*-* } 13 }
}

2
gcc/testsuite/g++.old-deja/g++.pt/crash60.C
View file

@ -7,7 +7,7 @@
template< typename SID, class SDR >
void k( SID sid, SDR* p,
void (SDR::*)
( typename SID::T ) ); // { dg-message "note" }
( typename SID::T ) ); // { dg-error "no type named 'T'" }
struct E { };
struct S { void f( int ); };

2
gcc/testsuite/g++.old-deja/g++.pt/explicit41.C
View file

@ -1,6 +1,6 @@
// { dg-do assemble }
template <int I>
void f(int i); // { dg-message "note" }
void f(int i); // { dg-message "void f" }
void g()
{

2
gcc/testsuite/g++.old-deja/g++.pt/explicit77.C
View file

@ -15,5 +15,5 @@ void g() {
f<0>(s0, s2);
f(s0, s2); // { dg-error "" } no matching function
// { dg-message "candidate" "candidate note" { target *-*-* } 17 }
// { dg-message "(candidate|deduced conflicting types|ambiguous base class)" "candidate note" { target *-*-* } 17 }
}

2
gcc/testsuite/g++.old-deja/g++.pt/expr2.C
View file

@ -9,5 +9,5 @@ void foo(S<J + 2>); // { dg-message "note" }
void bar()
{
foo(S<3>()); // { dg-error "" } no way to deduce J from this.
// { dg-message "candidate" "candidate note" { target *-*-* } 11 }
// { dg-message "(candidate|deduce template parameter)" "candidate note" { target *-*-* } 11 }
}

4
gcc/testsuite/g++.old-deja/g++.pt/ptrmem6.C
View file

@ -13,9 +13,9 @@ public:
};
template <void (A::*)() >
void g() {} // { dg-message "note" }
void g() {} // { dg-message "void g" }
template <int A::*>
void h() {} // { dg-message "note" }
void h() {} // { dg-message "void h" }
int main() {

4
gcc/testsuite/g++.old-deja/g++.pt/spec5.C
View file

@ -14,9 +14,9 @@ template void g(int i, int j);
void h()
{
f(3, 'c'); // { dg-error "" } no matching function
// { dg-message "candidate" "candidate note" { target *-*-* } 16 }
// { dg-message "(candidate|deduced conflicting types)" "candidate note" { target *-*-* } 16 }
g(3, 'c'); // { dg-error "" } no matching function
// { dg-message "candidate" "candidate note" { target *-*-* } 18 }
// { dg-message "(candidate|deduced conflicting types)" "candidate note" { target *-*-* } 18 }
}

4
gcc/testsuite/g++.old-deja/g++.pt/spec6.C
View file

@ -25,9 +25,9 @@ void h()
{
S1 s1;
s1.f(3, 'c'); // { dg-error "" } no matching function
// { dg-message "candidate" "candidate note" { target *-*-* } 27 }
// { dg-message "(candidate|deduced conflicting types)" "candidate note" { target *-*-* } 27 }
S2<char> s2;
s2.f(3, 'c'); // { dg-error "" } no matching function
// { dg-message "candidate" "candidate note" { target *-*-* } 31 }
// { dg-message "(candidate|deduced conflicting types)" "candidate note" { target *-*-* } 31 }
}

2
gcc/testsuite/g++.old-deja/g++.pt/unify4.C
View file

@ -8,6 +8,6 @@ int
main ()
{
f (g); // { dg-error "" } ambiguous unification
// { dg-message "candidate" "candidate note" { target *-*-* } 10 }
// { dg-message "(candidate|deduce template parameter)" "candidate note" { target *-*-* } 10 }
return 0;
}

2
gcc/testsuite/g++.old-deja/g++.pt/unify6.C
View file

@ -19,7 +19,7 @@ template<> void fn<int &>() {} // ok, specialize A
template<> void fn<void ()>() {} // ok, specialize A
// now make sure we moan when we really should
template<class T> void foo(T const *){} // { dg-message "note" }
template<class T> void foo(T const *){} // { dg-error "pointer to reference" }
void f()
{

2
gcc/testsuite/g++.old-deja/g++.pt/unify8.C
View file

@ -16,6 +16,6 @@ void Foo (float); // { dg-message "note" } candidate
void baz (int **p1)
{
Foo (p1); // { dg-error "match" } no such function
// { dg-message "candidate" "candidate note" { target *-*-* } 18 }
// { dg-message "(candidate|incompatible cv-qualifiers)" "candidate note" { target *-*-* } 18 }
Bar (p1); // OK
}

2
gcc/testsuite/g++.old-deja/g++.robertl/eb98.C
View file

@ -15,5 +15,5 @@
void f()
{
extent(b); // { dg-error "" } no matching function
// { dg-message "candidate" "candidate note" { target *-*-* } 17 }
// { dg-message "(candidate|mismatched types)" "candidate note" { target *-*-* } 17 }
}