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Use memcpy when possible in icu_calibre_utils

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This commit is contained in:
Flaviu Tamas 2018-10-10 23:12:40 -04:00
parent a3d6204304
commit 5333986819
1 changed files with 9 additions and 4 deletions
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13
src/calibre/utils/icu_calibre_utils.h
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@ -122,6 +122,7 @@ static UChar* python_to_icu(PyObject *obj, int32_t *osz) {
UChar *ans = NULL;
Py_ssize_t sz = 0;
UErrorCode status = U_ZERO_ERROR;
Py_UCS2 *data;
int i;
if (!PyUnicode_CheckExact(obj)) {
@ -150,10 +151,14 @@ static UChar* python_to_icu(PyObject *obj, int32_t *osz) {
break;
case PyUnicode_2BYTE_KIND:
ans = (UChar*) malloc((sz+1) * sizeof(UChar));
// UChar might be more than 2 bytes, so we need to copy manually.
// Hopefully this will be optimized as memcpy where possible.
for(i = 0; i < sz; i++) {
ans[i] = PyUnicode_2BYTE_DATA(obj)[i];
data = PyUnicode_2BYTE_DATA(obj);
// if UChar is more than 2 bytes, we need to copy manually.
if(sizeof(UChar) != sizeof(Py_UCS2)) {
for(i = 0; i < sz; i++) {
ans[i] = data[i];
}
} else {
memcpy(ans, data, sz);
}
// add null terminator
ans[sz] = 0;