commit 8f87eefe7f0576c05c488874eb9601a7a87c7312
author Serhiy Storchaka <storchaka@gmail.com> Sun Apr 12 14:58:27 2020 +0300
committer GitHub <noreply@github.com> Sun Apr 12 14:58:27 2020 +0300
tree 10ea36d1f702ae9e8bc34bcc88588868706948f6
parent 3e0dd3730b5eff7e9ae6fb921aa77cd26efc9e3a

bpo-39943: Add the const qualifier to pointers on non-mutable PyBytes data. (GH-19472)

Objects/bytesobject.c

diff --git a/Objects/bytesobject.c b/Objects/bytesobject.c
index 987d98d..7be075b 100644
--- a/Objects/bytesobject.c
+++ b/Objects/bytesobject.c
@@ -1598,7 +1598,7 @@
     else if (PySlice_Check(item)) {
         Py_ssize_t start, stop, step, slicelength, i;
         size_t cur;
-        char* source_buf;
+        const char* source_buf;
         char* result_buf;
         PyObject* result;
 
@@ -1863,7 +1863,7 @@
 do_xstrip(PyBytesObject *self, int striptype, PyObject *sepobj)
 {
     Py_buffer vsep;
-    char *s = PyBytes_AS_STRING(self);
+    const char *s = PyBytes_AS_STRING(self);
     Py_ssize_t len = PyBytes_GET_SIZE(self);
     char *sep;
     Py_ssize_t seplen;
@@ -1903,7 +1903,7 @@
 Py_LOCAL_INLINE(PyObject *)
 do_strip(PyBytesObject *self, int striptype)
 {
-    char *s = PyBytes_AS_STRING(self);
+    const char *s = PyBytes_AS_STRING(self);
     Py_ssize_t len = PyBytes_GET_SIZE(self), i, j;
 
     i = 0;
@@ -2020,7 +2020,8 @@
                      PyObject *deletechars)
 /*[clinic end generated code: output=43be3437f1956211 input=0ecdf159f654233c]*/
 {
-    char *input, *output;
+    const char *input;
+    char *output;
     Py_buffer table_view = {NULL, NULL};
     Py_buffer del_table_view = {NULL, NULL};
     const char *table_chars;
@@ -2371,7 +2372,7 @@
 bytes_hex_impl(PyBytesObject *self, PyObject *sep, int bytes_per_sep)
 /*[clinic end generated code: output=1f134da504064139 input=f1238d3455990218]*/
 {
-    char* argbuf = PyBytes_AS_STRING(self);
+    const char *argbuf = PyBytes_AS_STRING(self);
     Py_ssize_t arglen = PyBytes_GET_SIZE(self);
     return _Py_strhex_with_sep(argbuf, arglen, sep, bytes_per_sep);
 }
@@ -3188,7 +3189,7 @@
 Py_LOCAL_INLINE(Py_ssize_t)
 _PyBytesWriter_GetSize(_PyBytesWriter *writer, char *str)
 {
-    char *start = _PyBytesWriter_AsString(writer);
+    const char *start = _PyBytesWriter_AsString(writer);
     assert(str != NULL);
     assert(str >= start);
     assert(str - start <= writer->allocated);
@@ -3199,7 +3200,7 @@
 Py_LOCAL_INLINE(int)
 _PyBytesWriter_CheckConsistency(_PyBytesWriter *writer, char *str)
 {
-    char *start, *end;
+    const char *start, *end;
 
     if (writer->use_small_buffer) {
         assert(writer->buffer == NULL);