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Add an optional final qualifier to types

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When building with GCC's -Wfinal-types, a lot of types of spdlog
are marked as being more optimizable if they were marked final.

This patch adds a possibility for the user of the library to `#define SPDLOG_FINAL final`
and enjoy potentially better performance : GCC is then able to replace virtual calls by true
function calls if it can ensure that there are no derived types).

By default SPDLOG_FINAL is defined to nothing to not break existing code that
may be inheriting of some of these types for some reason.
This commit is contained in:
Jean-Michaël Celerier
2017-04-28 17:24:55 +02:00
parent 9e6d81de08
commit 53138c20fb
8 changed files with 41 additions and 35 deletions
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2
include/spdlog/formatter.h
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@@ -25,7 +25,7 @@ public:
virtual void format(details::log_msg& msg) = 0;
};
class pattern_formatter : public formatter
class pattern_formatter SPDLOG_FINAL : public formatter
{
public: