Fixed overzealous GCC warnings (#883) + partly undo 8553bab241a62fd7e473b273cf8a9662c9dec2e6

examples/opengl2_example/imgui_impl_glfw.cpp

@@ -76,9 +76,9 @@ void ImGui_ImplGlfw_RenderDrawLists(ImDrawData* draw_data)
         const ImDrawList* cmd_list = draw_data->CmdLists[n];
         const ImDrawVert* vtx_buffer = cmd_list->VtxBuffer.Data;
         const ImDrawIdx* idx_buffer = cmd_list->IdxBuffer.Data;
-        glVertexPointer(2, GL_FLOAT, sizeof(ImDrawVert), (const GLvoid*)((char*)vtx_buffer + OFFSETOF(ImDrawVert, pos)));
-        glTexCoordPointer(2, GL_FLOAT, sizeof(ImDrawVert), (const GLvoid*)((char*)vtx_buffer + OFFSETOF(ImDrawVert, uv)));
-        glColorPointer(4, GL_UNSIGNED_BYTE, sizeof(ImDrawVert), (const GLvoid*)((char*)vtx_buffer + OFFSETOF(ImDrawVert, col)));
+        glVertexPointer(2, GL_FLOAT, sizeof(ImDrawVert), (const GLvoid*)((const char*)vtx_buffer + OFFSETOF(ImDrawVert, pos)));
+        glTexCoordPointer(2, GL_FLOAT, sizeof(ImDrawVert), (const GLvoid*)((const char*)vtx_buffer + OFFSETOF(ImDrawVert, uv)));
+        glColorPointer(4, GL_UNSIGNED_BYTE, sizeof(ImDrawVert), (const GLvoid*)((const char*)vtx_buffer + OFFSETOF(ImDrawVert, col)));
 
         for (int cmd_i = 0; cmd_i < cmd_list->CmdBuffer.Size; cmd_i++)
         {

examples/sdl_opengl2_example/imgui_impl_sdl.cpp

@@ -65,9 +65,9 @@ void ImGui_ImplSdl_RenderDrawLists(ImDrawData* draw_data)
         const ImDrawList* cmd_list = draw_data->CmdLists[n];
         const ImDrawVert* vtx_buffer = cmd_list->VtxBuffer.Data;
         const ImDrawIdx* idx_buffer = cmd_list->IdxBuffer.Data;
-        glVertexPointer(2, GL_FLOAT, sizeof(ImDrawVert), (void*)((char*)vtx_buffer + OFFSETOF(ImDrawVert, pos)));
-        glTexCoordPointer(2, GL_FLOAT, sizeof(ImDrawVert), (void*)((char*)vtx_buffer + OFFSETOF(ImDrawVert, uv)));
-        glColorPointer(4, GL_UNSIGNED_BYTE, sizeof(ImDrawVert), (void*)((char*)vtx_buffer + OFFSETOF(ImDrawVert, col)));
+        glVertexPointer(2, GL_FLOAT, sizeof(ImDrawVert), (const GLvoid*)((const char*)vtx_buffer + OFFSETOF(ImDrawVert, pos)));
+        glTexCoordPointer(2, GL_FLOAT, sizeof(ImDrawVert), (const GLvoid*)((const char*)vtx_buffer + OFFSETOF(ImDrawVert, uv)));
+        glColorPointer(4, GL_UNSIGNED_BYTE, sizeof(ImDrawVert), (const GLvoid*)((const char*)vtx_buffer + OFFSETOF(ImDrawVert, col)));
 
         for (int cmd_i = 0; cmd_i < cmd_list->CmdBuffer.Size; cmd_i++)
         {

imgui_demo.cpp

@@ -38,7 +38,7 @@
 #pragma GCC diagnostic ignored "-Wformat-security"              // warning : format string is not a string literal (potentially insecure)
 #pragma GCC diagnostic ignored "-Wdouble-promotion"             // warning: implicit conversion from 'float' to 'double' when passing argument to function
 #pragma GCC diagnostic ignored "-Wconversion"                   // warning: conversion to 'xxxx' from 'xxxx' may alter its value
-#pragma GCC diagnostic ignored "-Wmisleading-indentation"       // warning: this 'if' clause does not guard this statement
+//#pragma GCC diagnostic ignored "-Wmisleading-indentation"     // warning: this 'if' clause does not guard this statement      // GCC 6.0+ only. See #883 on github.
 #endif
 
 // Play it nice with Windows users. Notepad in 2015 still doesn't display text data with Unix-style \n.