/usr/include/pion/PionException.hpp is in libpion-common-dev 4.0.7+dfsg-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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// pion-common: a collection of common libraries used by the Pion Platform
// -----------------------------------------------------------------------
// Copyright (C) 2007-2008 Atomic Labs, Inc. (http://www.atomiclabs.com)
//
// Distributed under the Boost Software License, Version 1.0.
// See http://www.boost.org/LICENSE_1_0.txt
//
#ifndef __PION_PIONEXCEPTION_HEADER__
#define __PION_PIONEXCEPTION_HEADER__
#include <pion/PionConfig.hpp>
#include <exception>
#include <string>
#include <cstdio>
namespace pion { // begin namespace pion
///
/// PionException: basic exception class that defines a what() function
///
class PionException :
public std::exception
{
public:
// virtual destructor does not throw
virtual ~PionException() throw () {}
// constructors used for constant messages
PionException(const char *what_msg) : m_what_msg(what_msg) {}
PionException(const std::string& what_msg) : m_what_msg(what_msg) {}
// constructors used for messages with a parameter
PionException(const char *description, const std::string& param)
: m_what_msg(std::string(description) + param) {}
PionException(std::string description, const std::string& param)
: m_what_msg(description + param) {}
/// returns a descriptive message for the exception
virtual const char* what() const throw() {
return m_what_msg.c_str();
}
private:
// message returned by what() function
const std::string m_what_msg;
};
///
/// BadAssertException: exception thrown if an assertion (PION_ASSERT) fails
///
class BadAssertException : public PionException {
public:
BadAssertException(const std::string& file, unsigned long line)
: PionException(make_string(file, line)) {}
private:
static std::string make_string(const std::string& file, unsigned long line) {
std::string result("Assertion failed at ");
result += file;
char line_buf[50];
sprintf(line_buf, " line %lu", line);
result += line_buf;
return result;
}
};
} // end namespace pion
// define PION_ASSERT macro to check assertions when debugging mode is enabled
#ifdef NDEBUG
#define PION_ASSERT(EXPR) ((void)0);
#else
#define PION_ASSERT(EXPR) if (!(EXPR)) { throw BadAssertException(__FILE__, __LINE__); }
#endif
#endif
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