http://sourceware.org/ml/gdb-patches/2016-09/msg00082.html

Subject: [testsuite patch] Fix false FAIL in gdb.cp/casts.exp

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Hi,

gcc-6.2.1-1.fc26.x86_64

gdb compile failed, /home/jkratoch/redhat/gdb-clean/gdb/testsuite/gdb.cp/casts.cc:40:10: error: expected primary-expression before 'int'

 decltype(int x)

          ^~~

/home/jkratoch/redhat/gdb-clean/gdb/testsuite/gdb.cp/casts.cc:40:10: error: expected ')' before 'int'

/home/jkratoch/redhat/gdb-clean/gdb/testsuite/gdb.cp/casts.cc:40:1: error: expected unqualified-id before 'decltype'

 decltype(int x)

 ^~~~~~~~

/home/jkratoch/redhat/gdb-clean/gdb/testsuite/gdb.cp/casts.cc: In function 'int main(int, char**)':

/home/jkratoch/redhat/gdb-clean/gdb/testsuite/gdb.cp/casts.cc:59:14: error: expected primary-expression before 'decltype'

   double y = decltype(2);

              ^~~~~~~~

'decltype' is a registered keyword since C++11 which is now a default for GCC.

OK for check-in?

Jan

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gdb/testsuite/ChangeLog

2016-09-11  Jan Kratochvil  <jan.kratochvil@redhat.com>

	* gdb.cp/casts.cc: Rename decltype to int_to_double.

	* gdb.cp/casts.exp (whatis decltype(5)): Rename to ...

	(whatis int_to_double(5)): ... here.

diff --git a/gdb/testsuite/gdb.cp/casts.cc b/gdb/testsuite/gdb.cp/casts.cc

index 43f112f..4f68ba0 100644

--- a/gdb/testsuite/gdb.cp/casts.cc

+++ b/gdb/testsuite/gdb.cp/casts.cc

@@ -37,7 +37,7 @@ struct DoublyDerived : public VirtuallyDerived,

 // Confuse a simpler approach.

 double

-decltype(int x)

+int_to_double(int x)

 {

   return x + 2.0;

 }

@@ -56,7 +56,7 @@ main (int argc, char **argv)

   Alpha *ad = &derived;

   Alpha *add = &doublyderived;

-  double y = decltype(2);

+  double y = int_to_double(2);

   return 0;  /* breakpoint spot: casts.exp: 1 */

 }

diff --git a/gdb/testsuite/gdb.cp/casts.exp b/gdb/testsuite/gdb.cp/casts.exp

index 34a2492..5798098 100644

--- a/gdb/testsuite/gdb.cp/casts.exp

+++ b/gdb/testsuite/gdb.cp/casts.exp

@@ -112,7 +112,7 @@ gdb_test "print reinterpret_cast (*b)" " = \\(A \\&\\) @$hex: {a = 42}" \

 # Test that keyword shadowing works.

-gdb_test "whatis decltype(5)" " = double"

+gdb_test "whatis int_to_double(5)" " = double"

 # Basic tests using typeof.

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