diff --git a/lib/comp.c b/lib/comp.c
index 0daba80..6eb70b8 100644
--- a/lib/comp.c
+++ b/lib/comp.c
@@ -525,7 +525,7 @@ static int add_literal (hcl_t* hcl, hcl_oop_t obj, hcl_oow_t* index)
 
 		newcapa = HCL_ALIGN(capa + 1, HCL_LIT_BUFFER_ALIGN);
 		tmp = hcl_remakengcarray(hcl, (hcl_oop_t)hcl->code.lit.arr, newcapa);
-		if (!tmp) return -1;
+		if (HCL_UNLIKELY(!tmp)) return -1;
 
 		hcl->code.lit.arr = (hcl_oop_oop_t)tmp;
 	}
diff --git a/lib/exec.c b/lib/exec.c
index 0e39741..4d81e17 100644
--- a/lib/exec.c
+++ b/lib/exec.c
@@ -4586,8 +4586,8 @@ if (do_throw(hcl, hcl->_nil, fetched_instruction_pointer) <= -1)
 				HCL_ASSERT (hcl, b1 >= 0);
 
 				/* the MAKE_FUNCTION instruction is followed by the long JUMP_FORWARD_X instruction.
-				* i can decode the instruction and get the size of instructions
-				* of the block context */
+				 * i can decode the instruction and get the size of instructions
+				 * of the block context */
 				HCL_ASSERT (hcl, hcl->active_code[hcl->ip] == HCL_CODE_JUMP_FORWARD_X);
 				joff = hcl->active_code[hcl->ip + 1];
 			#if (HCL_CODE_LONG_PARAM_SIZE == 2)
diff --git a/lib/hcl.h b/lib/hcl.h
index 7fc43d6..f290f84 100644
--- a/lib/hcl.h
+++ b/lib/hcl.h
@@ -1503,6 +1503,29 @@ typedef enum hcl_compile_flag_t hcl_compile_flag_t;
 
 #define HCL_ERRMSG_CAPA (2048)
 
+struct hcl_code_t
+{
+	struct
+	{
+		hcl_oob_t* ptr; /* byte code array */
+		hcl_oow_t len;
+		hcl_oow_t capa;
+	} bc;
+
+	struct
+	{
+		hcl_oop_oop_t arr; /* literal array - not part of object memory */
+		hcl_oow_t len;
+	} lit;
+
+	/* the cumulative number of temporaries collected at the global(top-level) level */
+	hcl_oow_t ngtmprs;
+
+	/* array that holds the location of the byte code emitted */
+	hcl_dbgi_t* dbgi;
+};
+typedef struct hcl_code_t hcl_code_t;
+
 struct hcl_t
 {
 	hcl_oow_t    _instsize;
@@ -1691,27 +1714,8 @@ struct hcl_t
 		} xbuf; /* buffer to support sprintf */
 	} sprintf;
 
-	struct
-	{
-		struct
-		{
-			hcl_oob_t* ptr; /* byte code array */
-			hcl_oow_t len;
-			hcl_oow_t capa;
-		} bc;
 
-		struct
-		{
-			hcl_oop_oop_t arr; /* literal array - not part of object memory */
-			hcl_oow_t len;
-		} lit;
-
-		/* the cumulative number of temporaries collected at the global(top-level) level */
-		hcl_oow_t ngtmprs;
-
-		/* array that holds the location of the byte code emitted */
-		hcl_dbgi_t* dbgi;
-	} code;
+	hcl_code_t code;
 
 	/* == PRINTER to udo stream == */
 	struct
diff --git a/lib/sym.c b/lib/sym.c
index 5c40763..cfdf0ab 100644
--- a/lib/sym.c
+++ b/lib/sym.c
@@ -158,7 +158,7 @@ static hcl_oop_t find_or_make_symbol (hcl_t* hcl, const hcl_ooch_t* ptr, hcl_oow
 	}
 
 	/* create a new symbol since it isn't found in the symbol table */
-	symbol = (hcl_oop_char_t)hcl_alloccharobj (hcl, HCL_BRAND_SYMBOL, ptr, len);
+	symbol = (hcl_oop_char_t)hcl_alloccharobj(hcl, HCL_BRAND_SYMBOL, ptr, len);
 	if (symbol)
 	{
 		HCL_ASSERT (hcl, tally < HCL_SMOOI_MAX);
@@ -171,10 +171,10 @@ static hcl_oop_t find_or_make_symbol (hcl_t* hcl, const hcl_ooch_t* ptr, hcl_oow
 
 hcl_oop_t hcl_makesymbol (hcl_t* hcl, const hcl_ooch_t* ptr, hcl_oow_t len)
 {
-	return find_or_make_symbol (hcl, ptr, len, 1);
+	return find_or_make_symbol(hcl, ptr, len, 1);
 }
 
 hcl_oop_t hcl_findsymbol (hcl_t* hcl, const hcl_ooch_t* ptr, hcl_oow_t len)
 {
-	return find_or_make_symbol (hcl, ptr, len, 0);
+	return find_or_make_symbol(hcl, ptr, len, 0);
 }