libcxxrt

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auxhelper.cc (2983B)

      1 /* 
      2  * Copyright 2010-2011 PathScale, Inc. All rights reserved.
      3  *
      4  * Redistribution and use in source and binary forms, with or without
      5  * modification, are permitted provided that the following conditions are met:
      6  *
      7  * 1. Redistributions of source code must retain the above copyright notice,
      8  *    this list of conditions and the following disclaimer.
      9  *
     10  * 2. Redistributions in binary form must reproduce the above copyright notice,
     11  *    this list of conditions and the following disclaimer in the documentation
     12  *    and/or other materials provided with the distribution.
     13  * 
     14  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS
     15  * IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
     16  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     17  * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
     18  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
     19  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
     20  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
     21  * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
     22  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
     23  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
     24  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     25  */
     26 
     27 /**
     28  * aux.cc - Compiler helper functions. 
     29  *
     30  * The functions declared in this file are intended to be called only by code
     31  * that is automatically generated by C++ compilers for some common cases.  
     32  */
     33 
     34 #include <stdlib.h>
     35 #include "stdexcept.h"
     36 
     37 /**
     38  * Called to generate a bad cast exception.  This function is intended to allow
     39  * compilers to insert code generating this exception without needing to
     40  * duplicate the code for throwing the exception in every call site.
     41  */
     42 extern "C" void __cxa_bad_cast()
     43 {
     44     throw std::bad_cast();
     45 }
     46 
     47 /**
     48  * Called to generate a bad typeid exception.  This function is intended to
     49  * allow compilers to insert code generating this exception without needing to
     50  * duplicate the code for throwing the exception in every call site.
     51  */
     52 extern "C" void __cxa_bad_typeid()
     53 {
     54     throw std::bad_typeid();
     55 }
     56 
     57 /**
     58  * Compilers may (but are not required to) set any pure-virtual function's
     59  * vtable entry to this function.  This makes debugging slightly easier, as
     60  * users can add a breakpoint on this function to tell if they've accidentally
     61  * called a pure-virtual function.
     62  */
     63 extern "C" void __cxa_pure_virtual()
     64 {
     65     abort();
     66 }
     67 
     68 /**
     69  * Compilers may (but are not required to) set any deleted-virtual function's
     70  * vtable entry to this function.  This makes debugging slightly easier, as
     71  * users can add a breakpoint on this function to tell if they've accidentally
     72  * called a deleted-virtual function.
     73  */
     74 extern "C" void __cxa_deleted_virtual()
     75 {
     76     abort();
     77 }
     78 
     79 extern "C" void __cxa_throw_bad_array_new_length()
     80 {
     81 	throw std::bad_array_new_length();
     82 }