mirrors/cpython
1
0
Fork 0
mirror of https://github.com/python/cpython.git synced 2025-08-04 00:48:58 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 8

dk_get_index/dk_set_index uses a type indices variable

Browse source 
Issue #27350.
This commit is contained in:
Victor Stinner 2016-09-08 11:35:46 -07:00
parent b6e363463a
commit 208857ec33
1 changed files with 16 additions and 8 deletions
Download patch file Download diff file Expand all files Collapse all files

24
Objects/dictobject.c
View file

@ -307,18 +307,22 @@ dk_get_index(PyDictKeysObject *keys, Py_ssize_t i)
Py_ssize_t ix;
if (s <= 0xff) {
ix = ((char*) &keys->dk_indices[0])[i];
char *indices = (char*)keys->dk_indices;
ix = indices[i];
}
else if (s <= 0xffff) {
ix = ((int16_t*)&keys->dk_indices[0])[i];
int16_t *indices = (int16_t*)keys->dk_indices;
ix = indices[i];
}
#if SIZEOF_VOID_P > 4
else if (s <= 0xffffffff) {
ix = ((int32_t*)&keys->dk_indices[0])[i];
int32_t *indices = (int32_t*)keys->dk_indices;
ix = indices[i];
}
#endif
else {
ix = ((Py_ssize_t*)&keys->dk_indices[0])[i];
Py_ssize_t *indices = (Py_ssize_t*)keys->dk_indices;
ix = indices[i];
}
assert(ix >= DKIX_DUMMY);
return ix;
@ -333,21 +337,25 @@ dk_set_index(PyDictKeysObject *keys, Py_ssize_t i, Py_ssize_t ix)
assert(ix >= DKIX_DUMMY);
if (s <= 0xff) {
char *indices = (char*)keys->dk_indices;
assert(ix <= 0x7f);
((char*) &keys->dk_indices[0])[i] = (char)ix;
indices[i] = (char)ix;
}
else if (s <= 0xffff) {
int16_t *indices = (int16_t*)keys->dk_indices;
assert(ix <= 0x7fff);
((int16_t*) &keys->dk_indices[0])[i] = (int16_t)ix;
indices[i] = (int16_t)ix;
}
#if SIZEOF_VOID_P > 4
else if (s <= 0xffffffff) {
int32_t *indices = (int32_t*)keys->dk_indices;
assert(ix <= 0x7fffffff);
((int32_t*) &keys->dk_indices[0])[i] = (int32_t)ix;
indices[i] = (int32_t)ix;
}
#endif
else {
((Py_ssize_t*) &keys->dk_indices[0])[i] = ix;
Py_ssize_t *indices = (Py_ssize_t*)keys->dk_indices;
indices[i] = ix;
}
}