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authorJakub Jelinek <jakub@redhat.com>2017-01-04 22:30:35 +0100
committerJakub Jelinek <jakub@gcc.gnu.org>2017-01-04 22:30:35 +0100
commit26c43e27441b88b20a463686ffe0b9b5ebbfbcf0 (patch)
tree3e4534773f68a3b8acb7baadbc4a5f321c830e48 /gcc
parent742b18041a2624da73d57abfaa44b04fbe55fe37 (diff)
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re PR c++/78693 (Bogus 'inconsistent deduction for ‘auto’' error when having a dependent initializer and a nondependent one in the same declaration)
PR c++/78693 * parser.c (cp_parser_simple_declaration): Only complain about inconsistent auto deduction if auto_result doesn't use auto. * g++.dg/cpp0x/pr78693.C: New test. From-SVN: r244074
Diffstat (limited to 'gcc')
-rw-r--r--gcc/cp/ChangeLog4
-rw-r--r--gcc/cp/parser.c6
-rw-r--r--gcc/testsuite/ChangeLog3
-rw-r--r--gcc/testsuite/g++.dg/cpp0x/pr78693.C31
4 files changed, 42 insertions, 2 deletions
diff --git a/gcc/cp/ChangeLog b/gcc/cp/ChangeLog
index 1fe0c37..833b904 100644
--- a/gcc/cp/ChangeLog
+++ b/gcc/cp/ChangeLog
@@ -1,5 +1,9 @@
2017-01-04 Jakub Jelinek <jakub@redhat.com>
+ PR c++/78693
+ * parser.c (cp_parser_simple_declaration): Only complain about
+ inconsistent auto deduction if auto_result doesn't use auto.
+
* parser.c (cp_parser_simple_declaration): Diagnose function
declaration among more than one init-declarators with auto
specifier.
diff --git a/gcc/cp/parser.c b/gcc/cp/parser.c
index 40e48f4..57ae064 100644
--- a/gcc/cp/parser.c
+++ b/gcc/cp/parser.c
@@ -12799,9 +12799,11 @@ cp_parser_simple_declaration (cp_parser* parser,
}
}
- if (auto_result)
+ if (auto_result
+ && (!processing_template_decl || !type_uses_auto (auto_result)))
{
- if (last_type && last_type != error_mark_node
+ if (last_type
+ && last_type != error_mark_node
&& !same_type_p (auto_result, last_type))
{
/* If the list of declarators contains more than one declarator,
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index fdd8aa1..abdb8bb 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,5 +1,8 @@
2017-01-04 Jakub Jelinek <jakub@redhat.com>
+ PR c++/78693
+ * g++.dg/cpp0x/pr78693.C: New test.
+
PR driver/78957
* gcc.dg/pr78957.c: New test.
diff --git a/gcc/testsuite/g++.dg/cpp0x/pr78693.C b/gcc/testsuite/g++.dg/cpp0x/pr78693.C
new file mode 100644
index 0000000..c937567
--- /dev/null
+++ b/gcc/testsuite/g++.dg/cpp0x/pr78693.C
@@ -0,0 +1,31 @@
+// PR c++/78693
+// { dg-do compile { target c++11 } }
+
+template <class T>
+void
+foo (T t)
+{
+ auto i = t, j = 1; // { dg-bogus "inconsistent deduction" }
+}
+
+template <class T>
+void
+bar (T t)
+{
+ auto i = 1, j = t, k = 2; // { dg-bogus "inconsistent deduction" }
+}
+
+template <class T, class U>
+void
+foo (T t, U u)
+{
+ auto i = t, j = u; // { dg-bogus "inconsistent deduction" }
+}
+
+void
+foo ()
+{
+ foo (0);
+ bar (0);
+ foo (1, 2);
+}