diff options
Diffstat (limited to 'py/objstr.h')
| -rw-r--r-- | py/objstr.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/py/objstr.h b/py/objstr.h index 07929156cb..e14568dac4 100644 --- a/py/objstr.h +++ b/py/objstr.h @@ -39,6 +39,7 @@ typedef struct _mp_obj_str_t { #define MP_DEFINE_STR_OBJ(obj_name, str) mp_obj_str_t obj_name = {{&mp_type_str}, 0, sizeof(str) - 1, (const byte*)str} // use this macro to extract the string hash +// warning: the hash can be 0, meaning invalid, and must then be explicitly computed from the data #define GET_STR_HASH(str_obj_in, str_hash) \ mp_uint_t str_hash; if (MP_OBJ_IS_QSTR(str_obj_in)) \ { str_hash = qstr_hash(MP_OBJ_QSTR_VALUE(str_obj_in)); } else { str_hash = ((mp_obj_str_t*)MP_OBJ_TO_PTR(str_obj_in))->hash; } |