* [pushed] Fix build failure with GCC 4.8
@ 2023-09-15 16:23 Tom Tromey
0 siblings, 0 replies; only message in thread
From: Tom Tromey @ 2023-09-15 16:23 UTC (permalink / raw)
To: gdb-patches; +Cc: Tom Tromey, Simon Marchi
A user pointed out that the build failed with GCC 4.8. The problem
was that the form used by the std::hash specialization of ptid_t was
not accepted. This patch rewrites this code into a form that is
acceptable to the older compiler.
Approved-By: Simon Marchi <simon.marchi@efficios.com>
---
gdbsupport/ptid.h | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/gdbsupport/ptid.h b/gdbsupport/ptid.h
index f8644d47633..96c7d9c8bfd 100644
--- a/gdbsupport/ptid.h
+++ b/gdbsupport/ptid.h
@@ -157,8 +157,10 @@ class ptid_t
tid_type m_tid;
};
+namespace std
+{
template<>
-struct std::hash<ptid_t>
+struct hash<ptid_t>
{
size_t operator() (const ptid_t &ptid) const
{
@@ -169,6 +171,7 @@ struct std::hash<ptid_t>
+ long_hash (ptid.tid ()));
}
};
+}
/* The null or zero ptid, often used to indicate no process. */
--
2.40.1
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