mirrors/cpython
mirrors/cpython
0
0
Fork 0
mirror of https://github.com/python/cpython.git synced 2024-11-21 12:59:38 +01:00
Code Issues Releases Activity

gh-121165: protect macro expansion of ADJUST_INDICES with do-while(0) (#121166)

Browse Source
This commit is contained in:
Bénédikt Tran 2024-07-02 12:57:51 +02:00 committed by GitHub
parent 15232a0819
commit 6343486eb6
No known key found for this signature in database
GPG Key ID: B5690EEEBB952194
2 changed files with 36 additions and 26 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

31
Objects/bytes_methods.c
View File

@ -432,19 +432,24 @@ parse_args_finds_byte(const char *function_name, PyObject **subobj, char *byte)
}
/* helper macro to fixup start/end slice values */
#define ADJUST_INDICES(start, end, len) \
if (end > len) \
end = len; \
else if (end < 0) { \
end += len; \
if (end < 0) \
end = 0; \
} \
if (start < 0) { \
start += len; \
if (start < 0) \
start = 0; \
}
#define ADJUST_INDICES(start, end, len) \
do { \
if (end > len) { \
end = len; \
} \
else if (end < 0) { \
end += len; \
if (end < 0) { \
end = 0; \
} \
} \
if (start < 0) { \
start += len; \
if (start < 0) { \
start = 0; \
} \
} \
} while (0)
Py_LOCAL_INLINE(Py_ssize_t)
find_internal(const char *str, Py_ssize_t len,

31
Objects/unicodeobject.c
View File

@ -9315,19 +9315,24 @@ _PyUnicode_TransformDecimalAndSpaceToASCII(PyObject *unicode)
/* --- Helpers ------------------------------------------------------------ */
/* helper macro to fixup start/end slice values */
#define ADJUST_INDICES(start, end, len) \
if (end > len) \
end = len; \
else if (end < 0) { \
end += len; \
if (end < 0) \
end = 0; \
} \
if (start < 0) { \
start += len; \
if (start < 0) \
start = 0; \
}
#define ADJUST_INDICES(start, end, len) \
do { \
if (end > len) { \
end = len; \
} \
else if (end < 0) { \
end += len; \
if (end < 0) { \
end = 0; \
} \
} \
if (start < 0) { \
start += len; \
if (start < 0) { \
start = 0; \
} \
} \
} while (0)
static Py_ssize_t
any_find_slice(PyObject* s1, PyObject* s2,