| // checking for std::nothrow |
| |
| /*************************************************************************** |
| * |
| * 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 |
| * |
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| * 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. |
| * |
| * Copyright 1999-2007 Rogue Wave Software, Inc. |
| * |
| **************************************************************************/ |
| |
| |
| // will fail if namespaces aren't supported |
| namespace std { |
| |
| struct nothrow_t { }; |
| |
| extern const nothrow_t nothrow; |
| |
| } // std |
| |
| |
| // force a failure by using the same name for an object of a diferent |
| // type than std:nothrow_t if namespace std isn't honored |
| const std::nothrow_t *nothrow = &std::nothrow; |
| |
| |
| int main (int argc, char *argv[]) |
| { |
| (void)&argv; |
| |
| // foil clever optimizers |
| if (argc > 2) |
| nothrow = 0; |
| |
| // will fail at link-time if std::nothrow is not defined |
| // in the compiler support library |
| return !(0 != nothrow); |
| } |