Text: fixed issue in RenderText() leading to IM_ASSERT_PARANOID() triggering if enabled. (#6132, #5720, #5919)

Amend 3482d4ec, bd96f6e

imgui.h

@@ -23,7 +23,7 @@
 // Library Version
 // (Integer encoded as XYYZZ for use in #if preprocessor conditionals, e.g. '#if IMGUI_VERSION_NUM > 12345')
 #define IMGUI_VERSION               "1.89.3 WIP"
-#define IMGUI_VERSION_NUM           18924
+#define IMGUI_VERSION_NUM           18925
 #define IMGUI_HAS_TABLE
 
 /*

imgui_draw.cpp

@@ -3573,19 +3573,17 @@ void ImFont::RenderText(ImDrawList* draw_list, float size, const ImVec2& pos, Im
         while (y + line_height < clip_rect.y && s < text_end)
         {
             const char* line_end = (const char*)memchr(s, '\n', text_end - s);
-            if (!line_end)
-                line_end = text_end;
             if (word_wrap_enabled)
             {
                 // FIXME-OPT: This is not optimal as do first do a search for \n before calling CalcWordWrapPositionA().
                 // If the specs for CalcWordWrapPositionA() were reworked to optionally return on \n we could combine both.
                 // However it is still better than nothing performing the fast-forward!
-                s = CalcWordWrapPositionA(scale, s, line_end, wrap_width);
+                s = CalcWordWrapPositionA(scale, s, line_end ? line_end : text_end, wrap_width);
                 s = CalcWordWrapNextLineStartA(s, text_end);
             }
             else
             {
-                s = line_end + 1;
+                s = line_end ? line_end + 1 : text_end;
             }
             y += line_height;
         }

imgui_internal.h

@@ -1,10 +1,12 @@
 // dear imgui, v1.89.3 WIP
 // (internal structures/api)
 
-// You may use this file to debug, understand or extend ImGui features but we don't provide any guarantee of forward compatibility!
-// Set:
-//   #define IMGUI_DEFINE_MATH_OPERATORS
-// To implement maths operators for ImVec2 (disabled by default to not collide with using IM_VEC2_CLASS_EXTRA along with your own math types+operators)
+// You may use this file to debug, understand or extend Dear ImGui features but we don't provide any guarantee of forward compatibility.
+// To implement maths operators for ImVec2 (disabled by default to not conflict with using IM_VEC2_CLASS_EXTRA with your own math types+operators), use:
+/*
+#define IMGUI_DEFINE_MATH_OPERATORS
+#include "imgui_internal.h"
+*/
 
 /*