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-rw-r--r--src/frontend/mame/ui/slider.h12
1 files changed, 6 insertions, 6 deletions
diff --git a/src/frontend/mame/ui/slider.h b/src/frontend/mame/ui/slider.h
index 7785518d093..56da6849e81 100644
--- a/src/frontend/mame/ui/slider.h
+++ b/src/frontend/mame/ui/slider.h
@@ -25,12 +25,12 @@ typedef std::function<std::int32_t (running_machine &, void *, int, std::string
struct slider_state
{
slider_update update; // callback
- void * arg; // argument
- std::int32_t minval; // minimum value
- std::int32_t defval; // default value
- std::int32_t maxval; // maximum value
- std::int32_t incval; // increment value
- int id;
+ void * arg = nullptr; // argument
+ std::int32_t minval = 0; // minimum value
+ std::int32_t defval = 0; // default value
+ std::int32_t maxval = 0; // maximum value
+ std::int32_t incval = 0; // increment value
+ int id = 0;
std::string description; // textual description
};