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| author | Tom Tromey <tromey@adacore.com> | 2020-06-30 07:53:03 -0600 |
|---|---|---|
| committer | Tom Tromey <tromey@adacore.com> | 2020-06-30 07:53:03 -0600 |
| commit | 5ac588997c3c2d032d5d5145d9245eb37354c23b (patch) | |
| tree | 984da0cf53258094e83d06c9bac4b85ef6d798dc /gdbsupport | |
| parent | 5568cc9ee83148042b853131a33007a9f36ab1eb (diff) | |
| download | gdb-5ac588997c3c2d032d5d5145d9245eb37354c23b.zip gdb-5ac588997c3c2d032d5d5145d9245eb37354c23b.tar.gz gdb-5ac588997c3c2d032d5d5145d9245eb37354c23b.tar.bz2 | |
Do not define basic_string_view::to_string
gdb's copy of basic_string_view includes a to_string method. However,
according to cppreference, this is not a method on the real
std::basic_string_view:
https://en.cppreference.com/w/cpp/string/basic_string_view
This difference matters because gdb_string_view.h will use the
standard implementation when built with a C++17 or later. This caused
PR build/26183.
This patch fixes the problem by changing the method to be a standalone
helper function, and then rewriting the uses. Tested by rebuilding
with a version of GCC that defaults to C++17.
(Note that the build still is not clean; and also I noticed that the
libstdc++ string_view forbids the use of nullptr ... I wonder if gdb
violates that.)
gdb/ChangeLog
2020-06-30 Tom Tromey <tromey@adacore.com>
PR build/26183:
* ada-lang.c (ada_lookup_name_info::ada_lookup_name_info): Use
gdb::to_string.
gdbsupport/ChangeLog
2020-06-30 Tom Tromey <tromey@adacore.com>
PR build/26183:
* gdb_string_view.h (basic_string_view::to_string): Remove.
(gdb::to_string): New function.
Diffstat (limited to 'gdbsupport')
| -rw-r--r-- | gdbsupport/ChangeLog | 6 | ||||
| -rw-r--r-- | gdbsupport/gdb_string_view.h | 17 |
2 files changed, 16 insertions, 7 deletions
diff --git a/gdbsupport/ChangeLog b/gdbsupport/ChangeLog index 4db482b..e1b040d 100644 --- a/gdbsupport/ChangeLog +++ b/gdbsupport/ChangeLog @@ -1,3 +1,9 @@ +2020-06-30 Tom Tromey <tromey@adacore.com> + + PR build/26183: + * gdb_string_view.h (basic_string_view::to_string): Remove. + (gdb::to_string): New function. + 2020-06-27 Simon Marchi <simon.marchi@efficios.com> * tdesc.h (class print_xml_feature) <add_line>: Add diff --git a/gdbsupport/gdb_string_view.h b/gdbsupport/gdb_string_view.h index c0ae7a8..65124e6 100644 --- a/gdbsupport/gdb_string_view.h +++ b/gdbsupport/gdb_string_view.h @@ -245,13 +245,6 @@ namespace gdb { return { this->_M_str, this->_M_len }; } - template<typename _Allocator = std::allocator<_CharT>> - std::basic_string<_CharT, _Traits, _Allocator> - to_string(const _Allocator& __alloc = _Allocator()) const - { - return { this->_M_str, this->_M_len, __alloc }; - } - size_type copy(_CharT* __str, size_type __n, size_type __pos = 0) const { @@ -560,4 +553,14 @@ namespace gdb { #endif // __cplusplus < 201703L +namespace gdb { + +static inline std::string +to_string(const gdb::string_view &view) +{ + return { view.data (), view.size () }; +} + +} + #endif /* COMMON_GDB_STRING_VIEW_H */ |