gdb: Replace gdb::optional with std::optional

Since GDB now requires C++17, we don't need the internally maintained
gdb::optional implementation.  This patch does the following replacing:
  - gdb::optional -> std::optional
  - gdb::in_place -> std::in_place
  - #include "gdbsupport/gdb_optional.h" -> #include <optional>

This change has mostly been done automatically.  One exception is
gdbsupport/thread-pool.* which did not use the gdb:: prefix as it
already lives in the gdb namespace.

Change-Id: I19a92fa03e89637bab136c72e34fd351524f65e9
Approved-By: Tom Tromey <tom@tromey.com>
Approved-By: Pedro Alves <pedro@palves.net>

1 files changed, 11 insertions, 11 deletions

diff --git a/gdb/probe.c b/gdb/probe.c
index 13e95bc..d9079be 100644
--- a/gdb/probe.c
+++ b/gdb/probe.c
@@ -36,7 +36,7 @@
 #include "location.h"
 #include <ctype.h>
 #include <algorithm>
-#include "gdbsupport/gdb_optional.h"
+#include <optional>
 
 /* Class that implements the static probe methods for "any" probe.  */
 
@@ -280,7 +280,7 @@ collect_probes (const std::string &objname, const std::string &provider,
 		const std::string &probe_name, const static_probe_ops *spops)
 {
   std::vector<bound_probe> result;
-  gdb::optional<compiled_regex> obj_pat, prov_pat, probe_pat;
+  std::optional<compiled_regex> obj_pat, prov_pat, probe_pat;
 
   if (!provider.empty ())
     prov_pat.emplace (provider.c_str (), REG_NOSUB,
@@ -683,9 +683,9 @@ disable_probes_command (const char *arg, int from_tty)
 static bool ignore_probes_p = false;
 static bool ignore_probes_idx = 0;
 static bool ignore_probes_verbose_p;
-static gdb::optional<compiled_regex> ignore_probes_prov_pat[2];
-static gdb::optional<compiled_regex> ignore_probes_name_pat[2];
-static gdb::optional<compiled_regex> ignore_probes_obj_pat[2];
+static std::optional<compiled_regex> ignore_probes_prov_pat[2];
+static std::optional<compiled_regex> ignore_probes_name_pat[2];
+static std::optional<compiled_regex> ignore_probes_obj_pat[2];
 
 /* See comments in probe.h.  */
 
@@ -696,11 +696,11 @@ ignore_probe_p (const char *provider, const char *name,
   if (!ignore_probes_p)
     return false;
 
-  gdb::optional<compiled_regex> &re_prov
+  std::optional<compiled_regex> &re_prov
     = ignore_probes_prov_pat[ignore_probes_idx];
-  gdb::optional<compiled_regex> &re_name
+  std::optional<compiled_regex> &re_name
     = ignore_probes_name_pat[ignore_probes_idx];
-  gdb::optional<compiled_regex> &re_obj
+  std::optional<compiled_regex> &re_obj
     = ignore_probes_obj_pat[ignore_probes_idx];
 
   bool res
@@ -755,11 +755,11 @@ ignore_probes_command (const char *arg, int from_tty)
   /* Parse the regular expressions, making sure that the old regular
      expressions are still valid if an exception is throw.  */
   int new_ignore_probes_idx = 1 - ignore_probes_idx;
-  gdb::optional<compiled_regex> &re_prov
+  std::optional<compiled_regex> &re_prov
     = ignore_probes_prov_pat[new_ignore_probes_idx];
-  gdb::optional<compiled_regex> &re_name
+  std::optional<compiled_regex> &re_name
     = ignore_probes_name_pat[new_ignore_probes_idx];
-  gdb::optional<compiled_regex> &re_obj
+  std::optional<compiled_regex> &re_obj
     = ignore_probes_obj_pat[new_ignore_probes_idx];
   re_prov.reset ();
   re_name.reset ();