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closes bpo-34599: Improve performance of _Py_bytes_capitalize(). (GH-9083)

This commit is contained in:
Sergey Fedoseev 2018-09-07 09:54:49 +05:00 committed by Benjamin Peterson
parent b03c2c5190
commit 593bb30e82
1 changed files with 3 additions and 17 deletions
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20
Objects/bytes_methods.c
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@ -361,23 +361,9 @@ and the rest lower-cased.");
void
_Py_bytes_capitalize(char *result, const char *s, Py_ssize_t len)
{
Py_ssize_t i;
if (0 < len) {
int c = Py_CHARMASK(*s++);
if (Py_ISLOWER(c))
*result = Py_TOUPPER(c);
else
*result = c;
result++;
}
for (i = 1; i < len; i++) {
int c = Py_CHARMASK(*s++);
if (Py_ISUPPER(c))
*result = Py_TOLOWER(c);
else
*result = c;
result++;
if (len > 0) {
*result = Py_TOUPPER(*s);
_Py_bytes_lower(result + 1, s + 1, len - 1);
}
}