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re PR c++/70229 (error: constexpr constructor does not have empty body)

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PR c++/70229
	* constexpr.c (check_constexpr_ctor_body_1): Allow typedef
	declarations.

	* g++.dg/cpp0x/constexpr-ctor19.C: New test.

From-SVN: r239115
This commit is contained in:
Marek Polacek 2016-08-04 07:47:50 +00:00 committed by Marek Polacek
parent fb46286e8d
commit a00084346a
4 changed files with 55 additions and 1 deletions
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6
gcc/cp/ChangeLog
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@ -1,3 +1,9 @@
2016-08-04 Marek Polacek <polacek@redhat.com>
PR c++/70229
* constexpr.c (check_constexpr_ctor_body_1): Allow typedef
declarations.
2016-08-01 Jason Merrill <jason@redhat.com>
* mangle.c (mangle_decl): Warn about mangled name change even if

3
gcc/cp/constexpr.c
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@ -425,7 +425,8 @@ check_constexpr_ctor_body_1 (tree last, tree list)
switch (TREE_CODE (list))
{
case DECL_EXPR:
if (TREE_CODE (DECL_EXPR_DECL (list)) == USING_DECL)
if (TREE_CODE (DECL_EXPR_DECL (list)) == USING_DECL
|| TREE_CODE (DECL_EXPR_DECL (list)) == TYPE_DECL)
return true;
return false;

5
gcc/testsuite/ChangeLog
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@ -1,3 +1,8 @@
2016-08-04 Marek Polacek <polacek@redhat.com>
PR c++/70229
* g++.dg/cpp0x/constexpr-ctor19.C: New test.
2016-08-04 Richard Biener <rguenther@suse.de>
PR middle-end/71984

42
gcc/testsuite/g++.dg/cpp0x/constexpr-ctor19.C Normal file
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@ -0,0 +1,42 @@
// PR c++/70229
// { dg-do compile { target c++11 } }
template <class>
class S {
constexpr S (void) {
typedef int T;
}
};
template <class>
class S2 {
constexpr S2 (void) {
;
}
};
template <class>
class S3 {
constexpr S3 (void) {
typedef enum { X } E;
} // { dg-error "does not have empty body" "" { target c++11_only } }
};
template <class>
class S4 {
constexpr S4 (void) {
typedef struct { int j; } U;
} // { dg-error "does not have empty body" "" { target c++11_only } }
};
struct V
{
int i;
};
template <class>
class S5 {
constexpr S5 (void) {
typedef V W;
}
};