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ctypes: remove use of legacy unicode API #12340

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Merged
methane merged 4 commits into from
Apr 19, 2019
Merged

ctypes: remove use of legacy unicode API #12340

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5513ad6
ctypes: remove use of legacy unicode API
methane Mar 15, 2019
4b8b223
fix
methane Mar 15, 2019
22a78c1
fix
methane Mar 15, 2019
c5e6102
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brettcannon Apr 19, 2019
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Co-Authored-By: methane <songofacandy@gmail.com>
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@brettcannon @methane
brettcannon and methane authored Apr 19, 2019
commit c5e610287eca7e20993ba957747752a7f1cdce3c
4 changes: 2 additions & 2 deletions Modules/_ctypes/_ctypes.c
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Original file line number Diff line number Diff line change
Expand Up @@ -1311,9 +1311,9 @@ WCharArray_set_value(CDataObject *self, PyObject *value, void *Py_UNUSED(ignored
if (len < 0) {
return -1;
}
// PyUnicode_AsWideChar() returns number of wchars including trailing NUL,
// PyUnicode_AsWideChar() returns number of wchars including trailing null byte,
// when it is called with NULL.
if ((size_t)len-1 > self->b_size/sizeof(wchar_t)) {
if (((size_t)len-1) > self->b_size/sizeof(wchar_t)) {
PyErr_SetString(PyExc_ValueError, "string too long");

@brettcannon brettcannon Apr 17, 2019

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Is it worth providing in the exception message the provided length and what the max length actually is?

@methane methane Apr 19, 2019

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Maybe yes. But this file has similar codes which are not relating to wchar_t APIs. ("bytes string too long").
I want to keep this pull request simple.

result = -1;
goto done;
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2 changes: 1 addition & 1 deletion Modules/_ctypes/cfield.c
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Expand Up @@ -1243,7 +1243,7 @@ U_set(void *ptr, PyObject *value, Py_ssize_t length)
if (size < 0) {
return NULL;
}
// PyUnicode_AsWideChar() returns number of wchars including trailing NUL,
// PyUnicode_AsWideChar() returns number of wchars including trailing null byte,
// when it is called with NULL.
size--;
assert(size >= 0);
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