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#ifndef PROTON_MSG_H
#define PROTON_MSG_H
* 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
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
#include <sstream>
#include <iostream>
namespace proton {
/** A simple facade for std::ostringstream that allows
* in place construction of a message and automatic conversion
* to string.
* E.g.
* void foo(const std::string&);
* foo(msg() << "hello " << 32);
* Will construct the string "hello 32" and pass it to foo()
struct msg {
std::ostringstream os;
msg() {}
msg(const msg& m) : os(m.str()) {}
std::string str() const { return os.str(); }
operator std::string() const { return str(); }
template <class T> msg& operator<<(const T& t) { os << t; return *this; }
inline std::ostream& operator<<(std::ostream& o, const msg& m) { return o << m.str(); }
/** Construct a message using operator << and append (file:line) */
#define QUOTe_(x) #x
#define QUOTE(x) QUOTe_(x)
#define MSG(message) (::proton::msg() << message)
#endif /*!PROTON_MSG_H*/