AddCircleFilled AddCircle in ImDrawList bug.

[1aam2am1]

Dear ImGui 1.80 WIP (17906)
--------------------------------
sizeof(size_t): 4, sizeof(ImDrawIdx): 4, sizeof(ImDrawVert): 20
define: __cplusplus=201703
define: IMGUI_DISABLE_OBSOLETE_FUNCTIONS
define: _WIN32
define: __MINGW32__
define: __GNUC__=10
define: IMGUI_HAS_VIEWPORT
define: IMGUI_HAS_DOCK
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io.BackendPlatformName: imgui_impl_sfml
io.BackendRendererName: SFML
io.ConfigFlags: 0x00000040
 DockingEnable
io.ConfigViewportsNoDecoration
io.ConfigInputTextCursorBlink
io.ConfigWindowsResizeFromEdges
io.ConfigWindowsMoveFromTitleBarOnly
io.ConfigMemoryCompactTimer = 60.0
io.BackendFlags: 0x00000007
 HasGamepad
 HasMouseCursors
 HasSetMousePos
--------------------------------
io.Fonts: 1 fonts, Flags: 0x00000000, TexSize: 512,512
io.DisplaySize: 1200.00,800.00
io.DisplayFramebufferScale: 1.00,1.00
--------------------------------
style.WindowPadding: 8.00,8.00
style.WindowBorderSize: 1.00
style.FramePadding: 4.00,3.00
style.FrameRounding: 0.00
style.FrameBorderSize: 0.00
style.ItemSpacing: 8.00,4.00
style.ItemInnerSpacing: 4.00,4.00

Back-ends: imgui_SFML
Compiler: msys2 mingw32 32bit
Operating System: Windows 10

There is bug in functions. As we can set radius to be smaller than 1 but bigger than 0, with num_segments == 0. Exist problem with getting precompiled data of how many num_segments we need to draw circle.

const int radius_idx = (int) radius - 1;

[ocornut]

Fixed by f144c67, thank you!