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<HTML><HEAD><TITLE>Compiling using GNU C++ Compiler (egcs, djgpp, ...)</TITLE><meta name="description" content="Method for compiling console applications."><meta name="keywords" content="c++ console compile compiler gnu GNU gcc g++ djgpp egcs"></HEAD><body bgcolor="white"><!--cap--><CENTER><TABLE WIDTH=100% CELLPADDING=0 CELLSPACING=1 BORDER=0><TR><TD WIDTH=90%> <FONT SIZE=4> Compilers </FONT><BR> <FONT SIZE=5><B>Compiling using GNU C++ Compiler</B></FONT></TD><TD VALIGN="bottom"> <a href="http://www.cplusplus.com"><IMG SRC="/img/mini.gif" ALT="cplusplus.com" BORDER=0></A></TD></TR><TR><TD BGCOLOR="#0000FF" ALIGN="center" COLSPAN=2> <IMG SRC="/img/2x2.gif" WIDTH=2 HEIGHT=2 BORDER=0></TD></TR></TABLE></CENTER><!--/cap--><P><TABLE WIDTH=100%><TR><TD BGCOLOR="#BFFFBF">PREVIOUS NOTE: This small text assumes that your compiler has already been installedand configured. Otherwise refer to the install information that comes with yourdistribution.</TD></TR></TABLE><P><H2>Compiling</H2>This compiler can perform preprocessing, compilation, assembly and linking of a projectfrom a single call to <TT><B>g++</B></TT>. Its format is:<BLOCKQUOTE><TT><B>g++ </B><I>options_and_filenames</I></TT></BLOCKQUOTE>where <TT><I>options_and_filenames</I></TT> is a sequence of options and filenamesthat can be mixed in the command line.<P>The most common way of calling <TT><B>g++</B></TT> to compile a single source filein C++ is:<BLOCKQUOTE><TT><B>g++ </B><I>sourcefile</I><B> -o </B><I>execfile</I></TT></BLOCKQUOTE>where <TT><I>sourcefile</I></TT> is the C++ source file to compile and<TT><I>execfile</I></TT> is the name of the output file, generally the executable file,which must always be preceded by the <TT><B>-o</B></TT> option.<P>The type of file assumed when specifying a <TT><I>sourcefile</I></TT>depends on its extension, that must be:<TT><B>.C</B></TT>, <TT><B>.cc</B></TT> or <TT><B>.cxx</B></TT> for C++ source files.Additionally, the most recent versions of GNU C++ Compiler assumes also<TT><B>.cpp</B></TT> and <TT><B>.c++</B></TT> extensions for C++ source files.<TT><B>.ii</B></TT> files are considered preprocessed C++ files.<P>You may also specify that a file is a C++ source file by preceding its name withspecifier <TT><B>-x c++</B></TT>. For example, if we want to compile a source filewith no-extension called <TT><B>mysource</B></TT> we may call g++ thus:<BLOCKQUOTE><TT><B>g++ -x c++ mysource -o myexec</B></TT></BLOCKQUOTE><!--cua--><CENTER><TABLE WIDTH=100% CELLPADDING=0 CELLSPACING=0 BORDER=0> <TR><TD BGCOLOR="#0000FF"><IMG SRC="/img/2x2.gif" WIDTH=2 HEIGHT=2></TD></TR> <TR><TD ALIGN="right"><FONT FACE="arial,helvetica" SIZE=1>©The C++ Resources Network, 2000 - All rights reserved</FONT></TD></TR> <TR><TD ALIGN="center"><a href="javascript:history.go(-1)" ><IMG SRC="/img/butnback.gif" BORDER=0>Return back</A></TD></TR></TABLE></CENTER><!--/cua--></BODY></HTML>⌨️ 快捷键说明
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