55 lines
1.8 KiB
C++
55 lines
1.8 KiB
C++
/***********************************************************************
|
|
*
|
|
* 21.string.io.stdcxx-250.cpp - regression test for STDCXX-250
|
|
*
|
|
* http://issues.apache.org/jira/browse/STDCXX-250
|
|
*
|
|
* $Id: 21.string.io.stdcxx-250.cpp 620105 2008-02-09 13:25:00Z faridz $
|
|
*
|
|
***********************************************************************
|
|
*
|
|
* Licensed to the Apache Software Foundation (ASF) under one or more
|
|
* contributor license agreements. See the NOTICE file distributed
|
|
* with this work for additional information regarding copyright
|
|
* ownership. The ASF licenses this file to you under the Apache
|
|
* License, Version 2.0 (the "License"); you may not use this file
|
|
* except in compliance with the License. You may obtain a copy of
|
|
* the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
|
|
* implied. See the License for the specific language governing
|
|
* permissions and limitations under the License.
|
|
*
|
|
***********************************************************************/
|
|
|
|
#include <cassert>
|
|
#include <istream>
|
|
#include <string>
|
|
|
|
int main ()
|
|
{
|
|
struct MyBuf : std::streambuf {
|
|
int_type underflow () {
|
|
static int i = 0;
|
|
// i == 0: sgect() invoked from sentry ctor
|
|
// i == 1: sgetc() invoked from operator>>()
|
|
// i == 2: sbumpc() invoked from operator>>()
|
|
return 1 < i++ ? throw i : 'x';
|
|
}
|
|
} buf;
|
|
|
|
std::istream is (&buf);
|
|
|
|
std::string s;
|
|
is >> s;
|
|
|
|
assert ("x" == s);
|
|
assert ((is.failbit | is.badbit) == is.rdstate ());
|
|
|
|
return 0;
|
|
}
|