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📁 自己收集的linux入门到学懂高级编程书集包括linux程序设计第三版
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<html lang="en"><head><title>Using the GNU Compiler Collection (GCC)</title><meta http-equiv="Content-Type" content="text/html"><meta name="description" content="Using the GNU Compiler Collection (GCC)"><meta name="generator" content="makeinfo 4.6"><!--Copyright &copy; 1988, 1989, 1992, 1993, 1994, 1995, 1996, 1997, 1998,1999, 2000, 2001, 2002, 2003, 2004 Free Software Foundation, Inc.   <p>Permission is granted to copy, distribute and/or modify this documentunder the terms of the GNU Free Documentation License, Version 1.2 orany later version published by the Free Software Foundation; with theInvariant Sections being "GNU General Public License" and "FundingFree Software", the Front-Cover texts being (a) (see below), and withthe Back-Cover Texts being (b) (see below).  A copy of the license isincluded in the section entitled "GNU Free Documentation License".   <p>(a) The FSF's Front-Cover Text is:   <p>A GNU Manual   <p>(b) The FSF's Back-Cover Text is:   <p>You have freedom to copy and modify this GNU Manual, like GNU     software.  Copies published by the Free Software Foundation raise     funds for GNU development.--><meta http-equiv="Content-Style-Type" content="text/css"><style type="text/css"><!--  pre.display { font-family:inherit }  pre.format  { font-family:inherit }  pre.smalldisplay { font-family:inherit; font-size:smaller }  pre.smallformat  { font-family:inherit; font-size:smaller }  pre.smallexample { font-size:smaller }  pre.smalllisp    { font-size:smaller }--></style></head><body><div class="node"><p>Node:&nbsp;<a name="Invoking%20G++">Invoking G++</a>,Next:&nbsp;<a rel="next" accesskey="n" href="C-Dialect-Options.html#C%20Dialect%20Options">C Dialect Options</a>,Previous:&nbsp;<a rel="previous" accesskey="p" href="Overall-Options.html#Overall%20Options">Overall Options</a>,Up:&nbsp;<a rel="up" accesskey="u" href="Invoking-GCC.html#Invoking%20GCC">Invoking GCC</a><hr><br></div><h3 class="section">Compiling C++ Programs</h3><p>C++ source files conventionally use one of the suffixes <code>.C</code>,<code>.cc</code>, <code>.cpp</code>, <code>.CPP</code>, <code>.c++</code>, <code>.cp</code>, or<code>.cxx</code>; C++ header files often use <code>.hh</code> or <code>.H</code>; andpreprocessed C++ files use the suffix <code>.ii</code>.  GCC recognizesfiles with these names and compiles them as C++ programs even if youcall the compiler the same way as for compiling C programs (usuallywith the name <code>gcc</code>).   <p>However, C++ programs often require class libraries as well as acompiler that understands the C++ language--and under somecircumstances, you might want to compile programs or header files fromstandard input, or otherwise without a suffix that flags them as C++programs.  You might also like to precompile a C header file with a<code>.h</code> extension to be used in C++ compilations.  <code>g++</code> is aprogram that calls GCC with the default language set to C++, andautomatically specifies linking against the C++ library.  On manysystems, <code>g++</code> is also installed with the name <code>c++</code>.   <p>When you compile C++ programs, you may specify many of the samecommand-line options that you use for compiling programs in anylanguage; or command-line options meaningful for C and relatedlanguages; or options that are meaningful only for C++ programs. See <a href="C-Dialect-Options.html#C%20Dialect%20Options">Options Controlling C Dialect</a>, forexplanations of options for languages related to C. See <a href="C---Dialect-Options.html#C++%20Dialect%20Options">Options Controlling C++ Dialect</a>, forexplanations of options that are meaningful only for C++ programs.   </body></html>
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