Fixed #1820.

examples/20-nanovg/nanovg.cpp

@@ -67,7 +67,9 @@ static char* cpToUTF8(int cp, char* str)
 	else if (cp < 0x200000) n = 4;
 	else if (cp < 0x4000000) n = 5;
 	else if (cp <= 0x7fffffff) n = 6;
+
 	str[n] = '\0';
+
 	switch (n)
 	{
 		case 6: str[5] = 0x80 | (cp & 0x3f); cp = cp >> 6; cp |= 0x4000000; BX_FALLTHROUGH;
@@ -75,8 +77,9 @@ static char* cpToUTF8(int cp, char* str)
 		case 4: str[3] = 0x80 | (cp & 0x3f); cp = cp >> 6; cp |= 0x10000;   BX_FALLTHROUGH;
 		case 3: str[2] = 0x80 | (cp & 0x3f); cp = cp >> 6; cp |= 0x800;     BX_FALLTHROUGH;
 		case 2: str[1] = 0x80 | (cp & 0x3f); cp = cp >> 6; cp |= 0xc0;      BX_FALLTHROUGH;
-		case 1: str[0] = char(cp);                                          BX_FALLTHROUGH;
+		case 1: str[0] = char(cp); break;
 	}
+
 	return str;
 }