我正在尝试在 C++ 中使用 libconfig 运行我的第一个基本程序。我用g++ testing.cpp -o testing
.
#include <iostream>
#include <cstdlib>
#include <libconfig.h++>
using namespace std;
using namespace libconfig;
int main(){
Config cfg;
// Read the file. If there is an error, report it and exit.
//try
//{
cfg.readFile("/tmp/eg-report-hutapp02q-161017-08-26/eg.cfg");
//}
/*catch(const FileIOException &fioex)
{
cerr << "I/O error while reading file." << endl;
return(EXIT_FAILURE);
}
catch(const ParseException &pex)
{
cerr << "Parse error at " << pex.getFile() << ":" << pex.getLine()
<< " - " << pex.getError() << std::endl;
return(EXIT_FAILURE);
}*/
cout << "This compiled" << endl;
return 0;
}
当我在 rhel6 上运行时,出现以下错误(仅第一行):
testing.cpp:(.text+0x13): undefined reference to ``libconfig::Config::Config()'
当我在 Mac Darwin Kernel 15.5.0 上运行时,我收到此错误:
Undefined symbols for architecture x86_64:
"libconfig::Config::readFile(char const*)", referenced from:
_main in testing-59bdf7.o
"libconfig::Config::Config()", referenced from:
_main in testing-59bdf7.o
"libconfig::Config::~Config()", referenced from:
_main in testing-59bdf7.o
"typeinfo for libconfig::ParseException", referenced from:
GCC_except_table0 in testing-59bdf7.o
"typeinfo for libconfig::FileIOException", referenced from:
GCC_except_table0 in testing-59bdf7.o
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)
这只是下载的 libconfig-1.5.tar.gz 文件中的一个示例。我在mac上完成了makefile过程,得到了那个错误,然后brew安装了libconfig-1.6,仍然收到同样的错误。我在这里不知所措。任何帮助表示赞赏。