fixed minor flaws in the code

lib/bigint.c

@@ -640,6 +640,9 @@ hcl_oop_t hcl_ooitoint (hcl_t* hcl, hcl_ooi_t i)
 	}
 }
 
+#if (HCL_SIZEOF_UINTMAX_T == HCL_SIZEOF_OOW_T)
+	/* do nothing. required macros are defined in hcl.h */
+#else
 hcl_oop_t hcl_intmaxtoint (hcl_t* hcl, hcl_intmax_t i)
 {
 	if (HCL_IN_SMOOI_RANGE(i))
@@ -663,6 +666,7 @@ hcl_oop_t hcl_uintmaxtoint (hcl_t* hcl, hcl_uintmax_t i)
 		return make_bigint_with_uintmax(hcl, i);
 	}
 }
+#endif
 
 static HCL_INLINE hcl_oop_t expand_bigint (hcl_t* hcl, hcl_oop_t oop, hcl_oow_t inc)
 {

lib/std.c

@@ -1084,7 +1084,7 @@ static void free_heap (hcl_t* hcl, void* ptr)
 	actual_ptr = (hcl_oow_t*)ptr - 1;
 	munmap (actual_ptr, *actual_ptr);
 #else
-	return HCL_MMGR_FREE(hcl->_mmgr, ptr);
+	HCL_MMGR_FREE(hcl->_mmgr, ptr);
 #endif
 }