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hashtable.h (clear): Return quickly if the table is empty. 

* include/backward/hashtable.h (clear): Return quickly if the
	table is empty.

From-SVN: r145318
This commit is contained in:
Ian Lance Taylor 2009-03-30 21:45:51 +00:00 committed by Ian Lance Taylor
parent 5a2df0fa12
commit 7db6438d78
2 changed files with 8 additions and 0 deletions
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5
libstdc++-v3/ChangeLog
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@ -1,3 +1,8 @@
2009-03-30 Ian Lance Taylor <iant@google.com>
* include/backward/hashtable.h (clear): Return quickly if the
table is empty.
2009-03-27 Ian Lance Taylor <iant@google.com> 2009-03-27 Ian Lance Taylor <iant@google.com>
* include/backward/hashtable.h (_S_num_primes): Change to 29. * include/backward/hashtable.h (_S_num_primes): Change to 29.

3
libstdc++-v3/include/backward/hashtable.h
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@ -1076,6 +1076,9 @@ _GLIBCXX_BEGIN_NAMESPACE(__gnu_cxx)
hashtable<_Val, _Key, _HF, _Ex, _Eq, _All>:: hashtable<_Val, _Key, _HF, _Ex, _Eq, _All>::
clear() clear()
{ {
if (_M_num_elements == 0)
return;
for (size_type __i = 0; __i < _M_buckets.size(); ++__i) for (size_type __i = 0; __i < _M_buckets.size(); ++__i)
{ {
_Node* __cur = _M_buckets[__i]; _Node* __cur = _M_buckets[__i];