rAssert.cpp

/*
* Copyright (c) 2008, Power of Two Games LLC
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*     * Redistributions of source code must retain the above copyright
*       notice, this list of conditions and the following disclaimer.
*     * Redistributions in binary form must reproduce the above copyright
*       notice, this list of conditions and the following disclaimer in the
*       documentation and/or other materials provided with the distribution.
*     * Neither the name of Power of Two Games LLC nor the
*       names of its contributors may be used to endorse or promote products
*       derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY POWER OF TWO GAMES LLC ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL POWER OF TWO GAMES LLC BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/

#include "rAssert.hpp"

#include <cstdio>
#include <cstdarg>

namespace pow2 {

namespace {

Assert::FailBehavior DefaultHandler(
    const char* condition,
    const char* msg,
    const char* file,
    const int line)
{
    std::printf("%s(%d): Assert Failure: ", file, line);

    if (condition != NULL)
        std::printf("'%s' ", condition);

    if (msg != NULL)
        std::printf("%s", msg);

    std::printf("\n");

    return Assert::Halt;
}

// Global variable.
Assert::Handler handler = nullptr;

} // Namespace

Assert::Handler Assert::GetHandler()
{
    return handler;
}

void Assert::SetHandler(Assert::Handler newHandler)
{
    handler = newHandler;
}

Assert::FailBehavior Assert::ReportFailure(
    const char* condition,
    const char* file,
    const int line,
    const char* msg, ...)
{
    const char* message = NULL;
    if (msg != NULL)
    {
        char messageBuffer[1024];
        {
            va_list args;
            va_start(args, msg);
            vsnprintf(messageBuffer, 1024, msg, args);
            va_end(args);
        }

        message = messageBuffer;
    }

    if (handler)
    {
        return handler(condition, message, file, line);
    }

    return Assert::Halt;
}

void Assert::SetDefaultAssertHandler()
{
    handler = &DefaultHandler;
}


}