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d41a5c096e
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.
On Thu, 15 Sep 2016 14:06:56 +0200, Pedro Alves wrote:
Seems to be exercising the FLAG_SHADOW bits:
...
{"__typeof__", TYPEOF, OP_TYPEOF, 0 },
{"__typeof", TYPEOF, OP_TYPEOF, 0 },
{"typeof", TYPEOF, OP_TYPEOF, FLAG_SHADOW },
{"__decltype", DECLTYPE, OP_DECLTYPE, FLAG_CXX },
{"decltype", DECLTYPE, OP_DECLTYPE, FLAG_CXX | FLAG_SHADOW },
...
/* This is used to associate some attributes with a token. */
enum token_flag
{
...
/* If this bit is set, the token is conditional: if there is a
symbol of the same name, then the token is a symbol; otherwise,
the token is a keyword. */
FLAG_SHADOW = 2
};
So perhaps a better fix is to move that particular test to a
separate testcase that force-compiles with -std=c++03.
gdb/testsuite/ChangeLog
2016-09-16 Jan Kratochvil <jan.kratochvil@redhat.com>
* gdb.cp/casts.cc (decltype): Move it ...
(main): ... with its call to ...
* gdb.cp/casts03.cc: ... a new file.
* gdb.cp/casts.exp: Add new file casts03.cc, move decltype test to it.
53 lines
649 B
C++
53 lines
649 B
C++
struct A
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{
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int a;
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A (int aa): a (aa) {}
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};
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struct B: public A
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{
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int b;
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B (int aa, int bb): A (aa), b(bb) {}
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};
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struct Alpha
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{
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virtual void x() { }
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};
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struct Gamma
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{
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};
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struct Derived : public Alpha
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{
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};
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struct VirtuallyDerived : public virtual Alpha
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{
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};
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struct DoublyDerived : public VirtuallyDerived,
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public virtual Alpha,
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public Gamma
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{
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};
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int
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main (int argc, char **argv)
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{
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A *a = new B(42, 1729);
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B *b = (B *) a;
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A &ar = *b;
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B &br = (B&)ar;
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Derived derived;
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DoublyDerived doublyderived;
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Alpha *ad = &derived;
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Alpha *add = &doublyderived;
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return 0; /* breakpoint spot: casts.exp: 1 */
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}
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