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Cast this to (void*) in zero-clearing memset calls to fix -Wnontrivial-memcall (#9247, #8295, #8129, #8135)

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Clang 20+ warns on memset(this, ...) for non-trivially copyable types via -Wnontrivial-memcall.
Should separately investigate -Wnonontrivial-memaccess vs -Wnonontrivial-memcall.
This commit is contained in:
Laurenz Altenmüller
2026-02-16 14:36:36 +01:00
committed by ocornut
parent eaa32bb787
commit fbe973a8d0
6 changed files with 55 additions and 55 deletions
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8
imgui_widgets.cpp
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@@ -4251,7 +4251,7 @@ static void stb_textedit_replace(ImGuiInputTextState* str, STB_TexteditState* st
// We added an extra indirection where 'Stb' is heap-allocated, in order facilitate the work of bindings generators.
ImGuiInputTextState::ImGuiInputTextState()
{
memset(this, 0, sizeof(*this));
memset((void*)this, 0, sizeof(*this));
Stb = IM_NEW(ImStbTexteditState);
memset(Stb, 0, sizeof(*Stb));
}
@@ -4301,7 +4301,7 @@ void ImGuiInputTextState::ReloadUserBufAndMoveToEnd() { WantReloadUserBuf
ImGuiInputTextCallbackData::ImGuiInputTextCallbackData()
{
memset(this, 0, sizeof(*this));
memset((void*)this, 0, sizeof(*this));
}
// Public API to manipulate UTF-8 text from within a callback.
@@ -9548,7 +9548,7 @@ struct ImGuiTabBarSection
float WidthAfterShrinkMinWidth;
float Spacing; // Horizontal spacing at the end of the section.
ImGuiTabBarSection() { memset(this, 0, sizeof(*this)); }
ImGuiTabBarSection() { memset((void*)this, 0, sizeof(*this)); }
};
namespace ImGui
@@ -9564,7 +9564,7 @@ namespace ImGui
ImGuiTabBar::ImGuiTabBar()
{
memset(this, 0, sizeof(*this));
memset((void*)this, 0, sizeof(*this));
CurrFrameVisible = PrevFrameVisible = -1;
LastTabItemIdx = -1;
}