diff --git a/BUILD.gn b/BUILD.gn
index 7c1e150..3bea5a7 100644
--- a/BUILD.gn
+++ b/BUILD.gn
@@ -51,6 +51,14 @@ if (os_level != "standard") {
             ]
             cflags_cc = cflags
         }
+
+        if (defined(board_toolchain_type) && board_toolchain_type == "clang") {
+            cflags = [
+            "--Wno-float-equal",
+            ]
+            cflags_cc = cflags
+        }
+
         if (enable_graphic_dualcore == true) {
             defines += [ "HAL_CPU_NUM=2" ]
         }
diff --git a/frameworks/diagram/vertexprimitive/geometry_curves.cpp b/frameworks/diagram/vertexprimitive/geometry_curves.cpp
index 6d79d18..3bdde2c 100644
--- a/frameworks/diagram/vertexprimitive/geometry_curves.cpp
+++ b/frameworks/diagram/vertexprimitive/geometry_curves.cpp
@@ -146,6 +146,9 @@ void QuadrBezierCurveDividOp::Init(float x1, float y1,
                                    float x3, float y3)
 {
     points_.Clear();
+    if (approximationScale_ == 0) {
+        return;
+    }
     distanceToleranceSquare_ = HALFNUM / approximationScale_;
     distanceToleranceSquare_ *= distanceToleranceSquare_;
     Bezier(x1, y1, x2, y2, x3, y3);