547c1dedd1
Former-commit-id:83e9157df7[formerly83e9157df7[formerly bd9eec1d4e6fd843c7bb594b8adb882d72edc6cf]] Former-commit-id:328c6dccadFormer-commit-id:47cc08ac79
78 lines
2.5 KiB
C++
78 lines
2.5 KiB
C++
#ifndef QPID_MSG_H
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#define QPID_MSG_H
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/*
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*
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations
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* under the License.
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*
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*/
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#include <sstream>
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#include <iostream>
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namespace qpid {
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/** A simple wrapper for std::ostringstream that allows
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* in place construction of a message and automatic conversion
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* to string.
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* E.g.
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*@code
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* void foo(const std::string&);
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* foo(Msg() << "hello " << 32);
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*@endcode
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* Will construct the string "hello 32" and pass it to foo()
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*/
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struct Msg {
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std::ostringstream os;
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Msg() {}
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Msg(const Msg& m) : os(m.str()) {}
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std::string str() const { return os.str(); }
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operator std::string() const { return str(); }
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Msg& operator<<(long n) { os << n; return *this; }
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Msg& operator<<(unsigned long n) { os << n; return *this; }
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Msg& operator<<(bool n) { os << n; return *this; }
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Msg& operator<<(short n) { os << n; return *this; }
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Msg& operator<<(unsigned short n) { os << n; return *this; }
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Msg& operator<<(int n) { os << n; return *this; }
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Msg& operator<<(unsigned int n) { os << n; return *this; }
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#ifdef _GLIBCXX_USE_LONG_LONG
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Msg& operator<<(long long n) { os << n; return *this; }
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Msg& operator<<(unsigned long long n) { os << n; return *this; }
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#endif
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Msg& operator<<(double n) { os << n; return *this; }
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Msg& operator<<(float n) { os << n; return *this; }
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Msg& operator<<(long double n) { os << n; return *this; }
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template <class T> Msg& operator<<(const T& t) { os <<t; return *this; }
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};
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inline std::ostream& operator<<(std::ostream& o, const Msg& m) {
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return o << m.str();
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}
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/** Construct a message using operator << and append (file:line) */
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#define QUOTE_(x) #x
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#define QUOTE(x) QUOTE_(x)
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#define QPID_MSG(message) (::qpid::Msg() << message << " (" __FILE__ ":" QUOTE(__LINE__) ")")
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} // namespace qpid
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#endif /*!QPID_MSG_H*/
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