Boost进程中缺少异常

Question

我想使用Boost进程，尽管它还没有发布。我做到了

svn co svn://svn.boost.org/svn/boost/sandbox/process/ boost-process

添加了包含路径(-I)和#included <boost/process.hpp>的boost-process，但编译报告未定义filesystem_error：

boost-process/boost/process/operations.hpp: In function ‘std::string boost::process::find_executable_in_path(const string&, std::string)’:
boost-process/boost/process/operations.hpp:85:36: error: ‘filesystem_error’ is not a member of ‘boost::filesystem3’
In file included from boost-process/boost/process.hpp:42:0,
                 from tests/../fio.hpp:22,
                 from tests/t_histogram.cpp:18:
boost-process/boost/process/operations.hpp:130:32: error: ‘filesystem_error’ is not a member of ‘boost::filesystem3’

我尝试将名称空间更改为boost::filesystem3，但结果相同。

filesystem_error的定义是

  class BOOST_SYMBOL_VISIBLE filesystem_error : public system::system_error

是不是BOOST_SYMBOL_VISIBLE藏起来了？

Answer 1

您需要编辑process/operations.hpp以删除以下内容：

#include <boost/filesystem/path.hpp> 

取而代之的是：

#include <boost/filesystem/operations.hpp>

我认为这将使它与Boost Filesystem v3 (很快将是唯一的版本，计划在Boost1.48中)兼容。

Answer 2

我通过在g++命令行中传递-DBOOST_FILESYSTEM_VERSION=2修复了这个问题。