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decl.c (grokdeclarator): Use typespec_loc in error messages about 'auto' and trailing return type.

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/cp
2019-01-17  Paolo Carlini  <paolo.carlini@oracle.com>

	* decl.c (grokdeclarator): Use typespec_loc in error messages
	about 'auto' and trailing return type.

/testsuite
2019-01-17  Paolo Carlini  <paolo.carlini@oracle.com>

	* g++.dg/cpp0x/auto52.C: Test locations too.
	* g++.dg/cpp0x/trailing2.C: Likewise.
	* g++.dg/cpp1y/auto-fn18.C: Likewise.
	* g++.dg/cpp1y/auto-fn25.C: Likewise.
	* g++.dg/cpp1y/auto-fn52.C: Likewise.
	* g++.dg/cpp1y/auto-fn53.C: Likewise.
	* g++.dg/cpp1y/auto-fn54.C: Likewise.

From-SVN: r268043
This commit is contained in:
Paolo Carlini 2019-01-17 18:01:43 +00:00 committed by Paolo Carlini
parent b9e0367980
commit 742b6dc476
10 changed files with 51 additions and 32 deletions
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5
gcc/cp/ChangeLog
View File

@ -1,3 +1,8 @@
2019-01-17 Paolo Carlini <paolo.carlini@oracle.com>
* decl.c (grokdeclarator): Use typespec_loc in error messages
about 'auto' and trailing return type.
2019-01-17 David Malcolm <dmalcolm@redhat.com>
PR c++/88699

42
gcc/cp/decl.c
View File

@ -11287,35 +11287,37 @@ grokdeclarator (const cp_declarator *declarator,
/* OK for C++11 lambdas. */;
else if (cxx_dialect < cxx14)
{
error ("%qs function uses "
"%<auto%> type specifier without trailing "
"return type", name);
inform (input_location, "deduced return type "
"only available with -std=c++14 or "
"-std=gnu++14");
error_at (typespec_loc, "%qs function uses "
"%<auto%> type specifier without "
"trailing return type", name);
inform (typespec_loc,
"deduced return type only available "
"with -std=c++14 or -std=gnu++14");
}
else if (virtualp)
{
error ("virtual function cannot "
"have deduced return type");
error_at (typespec_loc, "virtual function "
"cannot have deduced return type");
virtualp = false;
}
}
else if (!is_auto (type) && sfk != sfk_conversion)
{
error ("%qs function with trailing return type has"
" %qT as its type rather than plain %<auto%>",
name, type);
error_at (typespec_loc, "%qs function with trailing "
"return type has %qT as its type rather "
"than plain %<auto%>", name, type);
return error_mark_node;
}
else if (is_auto (type) && AUTO_IS_DECLTYPE (type))
{
if (funcdecl_p)
error ("%qs function with trailing return type has "
"%<decltype(auto)%> as its type rather than "
"plain %<auto%>", name);
error_at (typespec_loc,
"%qs function with trailing return type "
"has %<decltype(auto)%> as its type "
"rather than plain %<auto%>", name);
else
error ("invalid use of %<decltype(auto)%>");
error_at (typespec_loc,
"invalid use of %<decltype(auto)%>");
return error_mark_node;
}
tree tmpl = CLASS_PLACEHOLDER_TEMPLATE (auto_node);
@ -11359,11 +11361,13 @@ grokdeclarator (const cp_declarator *declarator,
if (cxx_dialect < cxx11)
/* Not using maybe_warn_cpp0x because this should
always be an error. */
error ("trailing return type only available with "
"-std=c++11 or -std=gnu++11");
error_at (typespec_loc,
"trailing return type only available "
"with -std=c++11 or -std=gnu++11");
else
error ("%qs function with trailing return type not "
"declared with %<auto%> type specifier", name);
error_at (typespec_loc, "%qs function with trailing "
"return type not declared with %<auto%> "
"type specifier", name);
return error_mark_node;
}
}

10
gcc/testsuite/ChangeLog
View File

@ -1,3 +1,13 @@
2019-01-17 Paolo Carlini <paolo.carlini@oracle.com>
* g++.dg/cpp0x/auto52.C: Test locations too.
* g++.dg/cpp0x/trailing2.C: Likewise.
* g++.dg/cpp1y/auto-fn18.C: Likewise.
* g++.dg/cpp1y/auto-fn25.C: Likewise.
* g++.dg/cpp1y/auto-fn52.C: Likewise.
* g++.dg/cpp1y/auto-fn53.C: Likewise.
* g++.dg/cpp1y/auto-fn54.C: Likewise.
2019-01-17 David Malcolm <dmalcolm@redhat.com>
PR c++/88699

4
gcc/testsuite/g++.dg/cpp0x/auto52.C
View File

@ -2,5 +2,5 @@
// { dg-do compile { target c++11 } }
using T = auto() -> int;
using U = void() -> int; // { dg-error "function with trailing return type not declared with .auto." }
using W = auto(); // { dg-error "invalid use of .auto." }
using U = void() -> int; // { dg-error "11:.type name. function with trailing return type not declared with .auto." }
using W = auto(); // { dg-error "11:invalid use of .auto." }

12
gcc/testsuite/g++.dg/cpp0x/trailing2.C
View File

@ -3,14 +3,14 @@
// { dg-do compile { target c++11 } }
auto f1 () -> int;
auto f2 (); // { dg-error "without trailing return type" "" { target { ! c++14 } } }
int f3 () -> int; // { dg-error "trailing return type" }
auto *f4 () -> int; // { dg-error "trailing return type" }
auto f2 (); // { dg-error "1:.f2. function uses .auto. type specifier without trailing return type" "" { target { ! c++14 } } }
int f3 () -> int; // { dg-error "1:.f3. function with trailing return type" }
auto *f4 () -> int; // { dg-error "1:.f4. function with trailing return type" }
struct A
{
auto f5 () const -> int;
auto f6 (); // { dg-error "without trailing return type" "" { target { ! c++14 } } }
int f7 () -> int; // { dg-error "trailing return type" }
auto *f8 () -> int; // { dg-error "trailing return type" }
auto f6 (); // { dg-error "3:.f6. function uses .auto. type specifier without trailing return type" "" { target { ! c++14 } } }
int f7 () -> int; // { dg-error "3:.f7. function with trailing return type" }
auto *f8 () -> int; // { dg-error "3:.f8. function with trailing return type" }
};

2
gcc/testsuite/g++.dg/cpp1y/auto-fn18.C
View File

@ -3,7 +3,7 @@
struct A
{
virtual int f() { return 1; } // { dg-message "overridden" }
virtual auto g() { return 1; } // { dg-error "virtual" }
virtual auto g() { return 1; } // { dg-error "11:virtual" }
};
struct B: A

2
gcc/testsuite/g++.dg/cpp1y/auto-fn25.C
View File

@ -5,7 +5,7 @@
struct A
{
virtual auto foo() {} // { dg-error "virtual.*deduced" }
virtual auto foo() {} // { dg-error "11:virtual.*deduced" }
};
struct B : A

2
gcc/testsuite/g++.dg/cpp1y/auto-fn52.C
View File

@ -1,4 +1,4 @@
// PR c++/67012
// { dg-do compile { target c++14 } }
decltype(auto) f() -> int; // { dg-error "function with trailing return type has" }
decltype(auto) f() -> int; // { dg-error "1:.f. function with trailing return type has" }

2
gcc/testsuite/g++.dg/cpp1y/auto-fn53.C
View File

@ -1,4 +1,4 @@
// PR c++/86942
// { dg-do compile { target c++14 } }
using T = decltype(auto) () -> int; // { dg-error "invalid use of" }
using T = decltype(auto) () -> int; // { dg-error "11:invalid use of" }

2
gcc/testsuite/g++.dg/cpp1y/auto-fn54.C
View File

@ -1,3 +1,3 @@
// { dg-do compile { target c++14 } }
using T = int () -> decltype(auto); // { dg-error "function with trailing return type not declared with .auto." }
using T = int () -> decltype(auto); // { dg-error "11:.type name. function with trailing return type not declared with .auto." }