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annotate gcc/doc/implement-cxx.texi @ 63:b7f97abdc517 gcc-4.6-20100522

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update gcc from gcc-4.5.0 to gcc-4.6
author ryoma <e075725@ie.u-ryukyu.ac.jp>
date Mon, 24 May 2010 12:47:05 +0900
parents 77e2b8dfacca
children f6334be47118
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1 @c Copyright (C) 2009
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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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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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61 @end itemize