py/modsys: Use MP_SMALL_INT_MAX for sys.maxsize in case of LONGINT_IMPL_NONE.
INT_MAX used previosly is indeed max value for int, whereas on LP64 platforms, long is used for mp_int_t. Using MP_SMALL_INT_MAX is the correct way to do it anyway.
This commit is contained in:
parent
914648ce0e
commit
96aa3a3102
13
py/modsys.c
13
py/modsys.c
|
@ -32,6 +32,7 @@
|
|||
#include "py/objstr.h"
|
||||
#include "py/objint.h"
|
||||
#include "py/stream.h"
|
||||
#include "py/smallint.h"
|
||||
|
||||
#if MICROPY_PY_SYS
|
||||
|
||||
|
@ -162,12 +163,12 @@ STATIC const mp_rom_map_elem_t mp_module_sys_globals_table[] = {
|
|||
|
||||
#if MICROPY_PY_SYS_MAXSIZE
|
||||
#if MICROPY_LONGINT_IMPL == MICROPY_LONGINT_IMPL_NONE
|
||||
// INT_MAX is not representable as small int, as we know that small int
|
||||
// takes one bit for tag. So, we have little choice but to provide this
|
||||
// value. Apps also should be careful to not try to compare sys.maxsize
|
||||
// with some number (which may not fit in available int size), but instead
|
||||
// count number of significant bits in sys.maxsize.
|
||||
{ MP_ROM_QSTR(MP_QSTR_maxsize), MP_OBJ_NEW_SMALL_INT(INT_MAX >> 1) },
|
||||
// Maximum mp_int_t value is not representable as small int, so we have
|
||||
// little choice but to use MP_SMALL_INT_MAX. Apps also should be careful
|
||||
// to not try to compare sys.maxsize to some literal number (as this
|
||||
// number might not fit in available int size), but instead count number
|
||||
// of "one" bits in sys.maxsize.
|
||||
{ MP_ROM_QSTR(MP_QSTR_maxsize), MP_OBJ_NEW_SMALL_INT(MP_SMALL_INT_MAX) },
|
||||
#else
|
||||
{ MP_ROM_QSTR(MP_QSTR_maxsize), MP_ROM_PTR(&mp_maxsize_obj) },
|
||||
#endif
|
||||
|
|
Loading…
Reference in New Issue