Mercurial > hg > CbC > CbC_gcc
annotate gcc/doc/implement-cxx.texi @ 67:f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
author | nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> |
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date | Tue, 22 Mar 2011 17:18:12 +0900 |
parents | b7f97abdc517 |
children | 04ced10e8804 |
rev | line source |
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1 @c Copyright (C) 2009, 2010 |
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2 @c Free Software Foundation, Inc. |
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3 @c This is part of the GCC manual. |
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4 @c For copying conditions, see the file gcc.texi. |
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5 |
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6 @node C++ Implementation |
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7 @chapter C++ Implementation-defined behavior |
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8 @cindex implementation-defined behavior, C++ language |
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9 |
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10 A conforming implementation of ISO C++ is required to document its |
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11 choice of behavior in each of the areas that are designated |
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12 ``implementation defined''. The following lists all such areas, |
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13 along with the section numbers from the ISO/IEC 14822:1998 and ISO/IEC |
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14 14822:2003 standards. Some areas are only implementation-defined in |
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15 one version of the standard. |
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16 |
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17 Some choices depend on the externally determined ABI for the platform |
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18 (including standard character encodings) which GCC follows; these are |
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19 listed as ``determined by ABI'' below. @xref{Compatibility, , Binary |
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20 Compatibility}, and @uref{http://gcc.gnu.org/readings.html}. Some |
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21 choices are documented in the preprocessor manual. |
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22 @xref{Implementation-defined behavior, , Implementation-defined |
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23 behavior, cpp, The C Preprocessor}. Some choices are documented in |
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24 the corresponding document for the C language. @xref{C |
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25 Implementation}. Some choices are made by the library and operating |
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26 system (or other environment when compiling for a freestanding |
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27 environment); refer to their documentation for details. |
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28 |
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29 @menu |
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30 * Conditionally-supported behavior:: |
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31 * Exception handling:: |
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32 @end menu |
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33 |
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34 @node Conditionally-supported behavior |
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35 @section Conditionally-supported behavior |
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36 |
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37 @cite{Each implementation shall include documentation that identifies |
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38 all conditionally-supported constructs that it does not support (C++0x |
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39 1.4).} |
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40 |
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41 @itemize @bullet |
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42 @item |
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43 @cite{Whether an argument of class type with a non-trivial copy |
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44 constructor or destructor can be passed to ... (C++0x 5.2.2).} |
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45 |
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46 Such argument passing is not supported. |
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47 |
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48 @end itemize |
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49 |
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50 @node Exception handling |
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51 @section Exception handling |
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52 |
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53 @itemize @bullet |
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54 @item |
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55 @cite{In the situation where no matching handler is found, it is |
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56 implementation-defined whether or not the stack is unwound before |
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57 std::terminate() is called (C++98 15.5.1).} |
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58 |
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59 The stack is not unwound before std::terminate is called. |
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60 |
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61 @end itemize |