Use boost::throw_exception

Using boost::throw_exception allows for modifications to these
exceptions on a per-application basis, including overriding with custom
implementations.

This also has the benefit of allowing compilation with -fno-exceptions
set, which should make this code more portable.

include/boost/process/detail/config.hpp

@@ -21,6 +21,7 @@
 #include <system_error>
 #include <boost/system/api_config.hpp>
 
+#include <boost/throw_exception.hpp>
 #include <boost/process/exception.hpp>
 
 #if defined(BOOST_POSIX_API)
@@ -73,29 +74,29 @@ inline std::error_code get_last_error() noexcept
 
 inline void throw_last_error(const std::string & msg)
 {
- throw process_error(get_last_error(), msg);
+ boost::throw_exception(process_error(get_last_error(), msg));
 }
 
 inline void throw_last_error(const char * msg)
 {
- throw process_error(get_last_error(), msg);
+ boost::throw_exception(process_error(get_last_error(), msg));
 }
 
 inline void throw_last_error()
 {
- throw process_error(get_last_error());
+ boost::throw_exception(process_error(get_last_error()));
 }
 
 inline void throw_error(const std::error_code& ec)
 {
  if (ec)
- throw process_error(ec);
+ boost::throw_exception(process_error(ec));
 }
 
 inline void throw_error(const std::error_code& ec, const char* msg)
 {
  if (ec)
- throw process_error(ec, msg);
+ boost::throw_exception(process_error(ec, msg));
 }
 
 template<typename Char> constexpr Char null_char();