blocks|key|1858801|text|可以使用objcopy将文件内容绑定到程序可以使用的符号。例如，有关更多信息，请参见here。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1858802|entityMap|0|LINK|mutability|MUTABLE|url|http://www.linuxjournal.com/content/embedding-file-executable-aka-hello-world-version-5967^0|16|4|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@$A|M|B|N|1|O]]|C|$]]|$1|D|3|-4|5|6|7|P|8|@]|9|@]|C|$]]]|E|$F|$5|G|H|I|C|$J|K]]]]

You can use objcopy to bind the contents of the file to a symbol your program can use. See, for instance, <a href="http://www.linuxjournal.com/content/embedding-file-executable-aka-hello-world-version-5967" rel="noreferrer">here</a> for more information.

blocks|key|1858671|text|使用宏。从技术上讲，该文件应该是源代码文件，但它不会是这样。示例：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1858672|//queries.incl+-+SQL+queries
Q(SELECT+*+FROM+Users)
Q(INSERT+[a]+INTO+Accounts)


//source.cpp
#define+Q(query)+#query,
char+*+queries[]+=+{
#include+"queries.incl"
};
#undef+Q|code-block|syntax|javascript|1858673|稍后，你可以在同一个文件中对该文件进行各种其他处理，比如你想要数组和它们的哈希图，你可以重新定义q来做另一项工作，并完成它。|1858674|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

Use macros. Technically that file would be source code file but it wouldn't look like this.
Example:

<pre><code>//queries.incl - SQL queries
Q(SELECT * FROM Users)
Q(INSERT [a] INTO Accounts)


//source.cpp
#define Q(query) #query,
char * queries[] = {
#include "queries.incl"
};
#undef Q
</code></pre>

Later on you could do all sorts of other processing on that file by the same file, say you'd want to have array and a hash map of them, you could redefine Q to do another job and be done with it.

blocks|key|1858716|text|您始终可以编写一个小程序或脚本，将文本文件转换为头文件，并将其作为构建过程的一部分运行。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1858717|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

You can always write a small program or script to convert your text file into a header file and run it as part of your build process.

blocks|key|2072722|text|这是一个我们用来跨平台嵌入文件的示例。这是相当简单的，但可能会为您工作。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2072723|您可能还需要更改它在escapeLine函数中处理换行符的方式。|2072724|#include+<string>
#include+<iostream>
#include+<fstream>
#include+<cstdio>

using+namespace+std;

std::string+escapeLine(+std::string+orig+)
{
++++string+retme;
++++for+(unsigned+int+i=0;+i<orig.size();+i%2B%2B)
++++{
++++++++switch+(orig[i])
++++++++{
++++++++case+'\\':
++++++++++++retme+%2B=+"\\\\";
++++++++++++break;
++++++++case+'"':
++++++++++++retme+%2B=+"\\\"";
++++++++++++break;
++++++++case+'\n':+//+Strip+out+the+final+linefeed.
++++++++++++break;
++++++++default:
++++++++++++retme+%2B=+orig[i];
++++++++}
++++}
++++retme+%2B=+"\\n";+//+Add+an+escaped+linefeed+to+the+escaped+string.
++++return+retme;
}

int+main(+int+argc,+char+**+argv+)
{
++++string+filenamein,+filenameout;

++++if+(+argc+>+1+)
++++++++filenamein+=+argv[+1+];
++++else
++++{
++++++++//+Not+enough+arguments
++++++++fprintf(+stderr,+"Usage:+%25s+<file+to+convert.mel>+[+<output+file+name.mel>+]\n",+argv[0]+);
++++++++exit(+-1+);
++++}

++++if+(+argc+>+2+)
++++++++filenameout+=+argv[+2+];
++++else
++++{
++++++++string+new_ending+=+"_mel.h";
++++++++filenameout+=+filenamein;
++++++++std::string::size_type+pos;
++++++++pos+=+filenameout.find(+".mel"+);
++++++++if+(pos+==+std::string::npos)
++++++++++++filenameout+%2B=+new_ending;
++++++++else
++++++++++++filenameout.replace(+pos,+new_ending.size(),+new_ending+);
++++}

++++printf(+"Converting+\"%25s\"+to+\"%25s\"\n",+filenamein.c_str(),+filenameout.c_str()+);

++++ifstream+filein(+filenamein.c_str(),+ios::in+);
++++ofstream+fileout(+filenameout.c_str(),+ios::out+);

++++if+(!filein.good())
++++{
++++++++fprintf(+stderr,+"Unable+to+open+input+file+%25s\n",+filenamein.c_str()+);
++++++++exit(+-2+);
++++}
++++if+(!fileout.good())
++++{
++++++++fprintf(+stderr,+"Unable+to+open+output+file+%25s\n",+filenameout.c_str()+);
++++++++exit(+-3+);
++++}

++++//+Write+the+file.
++++fileout+<<+"tempstr+=+";

++++while(+filein.good()+)
++++{
++++++++string+buff;
++++++++if+(+getline(+filein,+buff+)+)
++++++++{
++++++++++++fileout+<<+"\""+<<+escapeLine(+buff+)+<<+"\""+<<+endl;
++++++++}
++++}

++++fileout+<<+";"+<<+endl;

++++filein.close();
++++fileout.close();

++++return+0;
}|code-block|syntax|javascript|2072725|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|L|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|M|8|@]|9|@]|A|$G|H]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

Here's a sample that we used for cross-platform embeddeding of files.
It's pretty simplistic, but will probably work for you.

You may also need to change how it's handling linefeeds in the escapeLine function.

<pre><code>#include &lt;string&gt;
#include &lt;iostream&gt;
#include &lt;fstream&gt;
#include &lt;cstdio&gt;

using namespace std;

std::string escapeLine( std::string orig )
{
 string retme;
 for (unsigned int i=0; i&lt;orig.size(); i++)
 {
 switch (orig[i])
 {
 case '\\':
 retme += "\\\\";
 break;
 case '"':
 retme += "\\\"";
 break;
 case '\n': // Strip out the final linefeed.
 break;
 default:
 retme += orig[i];
 }
 }
 retme += "\\n"; // Add an escaped linefeed to the escaped string.
 return retme;
}

int main( int argc, char ** argv )
{
 string filenamein, filenameout;

 if ( argc &gt; 1 )
 filenamein = argv[ 1 ];
 else
 {
 // Not enough arguments
 fprintf( stderr, "Usage: %s &lt;file to convert.mel&gt; [ &lt;output file name.mel&gt; ]\n", argv[0] );
 exit( -1 );
 }

 if ( argc &gt; 2 )
 filenameout = argv[ 2 ];
 else
 {
 string new_ending = "_mel.h";
 filenameout = filenamein;
 std::string::size_type pos;
 pos = filenameout.find( ".mel" );
 if (pos == std::string::npos)
 filenameout += new_ending;
 else
 filenameout.replace( pos, new_ending.size(), new_ending );
 }

 printf( "Converting \"%s\" to \"%s\"\n", filenamein.c_str(), filenameout.c_str() );

 ifstream filein( filenamein.c_str(), ios::in );
 ofstream fileout( filenameout.c_str(), ios::out );

 if (!filein.good())
 {
 fprintf( stderr, "Unable to open input file %s\n", filenamein.c_str() );
 exit( -2 );
 }
 if (!fileout.good())
 {
 fprintf( stderr, "Unable to open output file %s\n", filenameout.c_str() );
 exit( -3 );
 }

 // Write the file.
 fileout &lt;&lt; "tempstr = ";

 while( filein.good() )
 {
 string buff;
 if ( getline( filein, buff ) )
 {
 fileout &lt;&lt; "\"" &lt;&lt; escapeLine( buff ) &lt;&lt; "\"" &lt;&lt; endl;
 }
 }

 fileout &lt;&lt; ";" &lt;&lt; endl;

 filein.close();
 fileout.close();

 return 0;
}
</code></pre>

blocks|key|1858787|text|我已经看到，这是通过将资源文件转换为C源文件来实现的，该文件只定义了一个字符数组，其中包含十六进制格式的资源文件内容(以避免恶意字符的问题)。然后，这个自动生成的源文件被简单地编译并链接到项目。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1858788|应该很容易实现转储每个资源文件的C文件的转换器，以及编写一些用于访问资源的外观函数。|1858789|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|F|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|G|8|@]|9|@]|A|$]]|$1|D|3|-4|5|6|7|H|8|@]|9|@]|A|$]]]|E|$]]

I have seen this to be done by converting the resource file to a C source file with only one char array defined containing the content of resource file in a hexadecimal format (to avoid problems with malicious characters). This automatically generated source file is then simply compiled and linked to the project. 

It should be pretty easy to implement the convertor to dump C file for each resource file also as to write some facade functions for accessing the resources.

I've got a C++ program that uses SQLite. I want to store the SQL queries in a separate file -- a plain-text file, not a source code file -- but embed that file in the executable file like a resource.

(This has to run on Linux, so I can't store it as an actual resource as far as I know, though that would be perfect if it were for Windows.)

Is there any simple way to do it, or will it effectively require me to write my own resource system for Linux? (Easily possible, but it would take a lot longer.)

Embed data in a C++ program

Windows

SQLite

Linux

我有一个使用SQLite的C++程序。我希望将SQL查询存储在一个单独的文件中--一个纯文本文件，而不是源代码文件--但将该文件像资源一样嵌入到可执行文件中。(它必须在Linux上运行，所以据我所知，我不能将它存储为实际的资源，尽管如果它是Windows的话就很完美了。)有没有什么简单的方法可以做到这一点，或者它实际上需要我为Linux编写自己的资源系统？(这很容易实现，但需要更长的时间。)

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