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

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Since GDB now requires a C++17, we don't need the internally maintained
gdb::optional implementation.  This patch does the following replacing:
  - gdb::optonal -> 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
This commit is contained in:
Lancelot Six
2023-10-13 09:27:48 +00:00
parent e7b38ccb82
commit f795c529a8
147 changed files with 413 additions and 412 deletions
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8
gdb/gdbtypes.h
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@@ -47,7 +47,7 @@
#include "hashtab.h"
#include "gdbsupport/array-view.h"
#include "gdbsupport/gdb-hashtab.h"
#include "gdbsupport/gdb_optional.h"
#include <optional>
#include "gdbsupport/offset-type.h"
#include "gdbsupport/enum-flags.h"
#include "gdbsupport/underlying.h"
@@ -2663,11 +2663,11 @@ extern bool get_discrete_bounds (struct type *type, LONGEST *lowp,
/* If TYPE's low bound is a known constant, return it, else return nullopt. */
extern gdb::optional<LONGEST> get_discrete_low_bound (struct type *type);
extern std::optional<LONGEST> get_discrete_low_bound (struct type *type);
/* If TYPE's high bound is a known constant, return it, else return nullopt. */
extern gdb::optional<LONGEST> get_discrete_high_bound (struct type *type);
extern std::optional<LONGEST> get_discrete_high_bound (struct type *type);
/* Assuming TYPE is a simple, non-empty array type, compute its upper
and lower bound. Save the low bound into LOW_BOUND if not NULL.
@@ -2679,7 +2679,7 @@ extern gdb::optional<LONGEST> get_discrete_high_bound (struct type *type);
extern bool get_array_bounds (struct type *type, LONGEST *low_bound,
LONGEST *high_bound);
extern gdb::optional<LONGEST> discrete_position (struct type *type,
extern std::optional<LONGEST> discrete_position (struct type *type,
LONGEST val);
extern int class_types_same_p (const struct type *, const struct type *);