diff options
Diffstat (limited to 'gdb/command.h')
| -rw-r--r-- | gdb/command.h | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/gdb/command.h b/gdb/command.h index 2abfbc4..7c226f1 100644 --- a/gdb/command.h +++ b/gdb/command.h @@ -300,7 +300,9 @@ struct setting return *static_cast<const T *> (m_var); } - /* Sets the value of the setting to V. + /* Sets the value of the setting to V. Returns true if the setting was + effectively changed, false if the update failed and the setting is left + unchanged. If we have a user-provided setter, use it to set the setting. Otherwise copy the value V to the internally referenced buffer. @@ -310,12 +312,14 @@ struct setting The var_type of the setting must match T. */ template<typename T> - void set (const T &v) + bool set (const T &v) { /* Check that the current instance is of one of the supported types for this instantiation. */ gdb_assert (var_type_uses<T> (m_var_type)); + const T old_value = this->get<T> (); + if (m_var == nullptr) { gdb_assert (m_setter != nullptr); @@ -324,6 +328,8 @@ struct setting } else *static_cast<T *> (m_var) = v; + + return old_value != this->get<T> (); } private: |