c++ - 'SerialStream' does not name a type -

i'm using ubuntu 14.04. want use libserial project described here. installed library using sudo apt-get install libserial-dev.

i've written little program (well, it's not program):

#include "serialstream.h" #include <iostream>  #define port "/dev/ttyusb0"  serialstream ardu;  using namespace std; using namespace libserial; 

but compiler says: ‘serialstream’ not name type

any help?

edit: after placing serialstream ardu after namespace-line problem more strange:

g++ main.cpp -o arducom /tmp/ccnzzing.o: in funktion `main': main.cpp:(.text+0x7a): not defined reference `libserial::serialstream::open(std::string, std::_ios_openmode)' main.cpp:(.text+0x12d): not defined reference `libserial::serialstream::setbaudrate(libserial::serialstreambuf::baudrateenum)' main.cpp:(.text+0x181): not defined reference `libserial::serialstream::setcharsize(libserial::serialstreambuf::charsizeenum)' main.cpp:(.text+0x1d5): not defined reference `libserial::serialstream::setparity(libserial::serialstreambuf::parityenum)' main.cpp:(.text+0x229): not defined reference `libserial::serialstream::setnumofstopbits(short)' main.cpp:(.text+0x27d): not defined reference `libserial::serialstream::setflowcontrol(libserial::serialstreambuf::flowcontrolenum)' /tmp/ccnzzing.o:(.rodata._ztvn9libserial15serialstreambufe[_ztvn9libserial15serialstreambufe]+0x48): not defined reference `libserial::serialstreambuf::showmanyc()' /tmp/ccnzzing.o:(.rodata._ztvn9libserial15serialstreambufe[_ztvn9libserial15serialstreambufe]+0x50): not defined reference `libserial::serialstreambuf::xsgetn(char*, long)' /tmp/ccnzzing.o:(.rodata._ztvn9libserial15serialstreambufe[_ztvn9libserial15serialstreambufe]+0x58): not defined reference `libserial::serialstreambuf::underflow()' /tmp/ccnzzing.o:(.rodata._ztvn9libserial15serialstreambufe[_ztvn9libserial15serialstreambufe]+0x68): not defined reference `libserial::serialstreambuf::pbackfail(int)' /tmp/ccnzzing.o:(.rodata._ztvn9libserial15serialstreambufe[_ztvn9libserial15serialstreambufe]+0x70): not defined reference `libserial::serialstreambuf::xsputn(char const*, long)' /tmp/ccnzzing.o:(.rodata._ztvn9libserial15serialstreambufe[_ztvn9libserial15serialstreambufe]+0x78): not defined reference `libserial::serialstreambuf::overflow(int)' 

first of have defined object of type serialstream namespace libserial without qualifying it:

#include "serialstream.h" #include <iostream>  #define port "/dev/ttyusb0"  serialstream ardu; // error type unqualified  using namespace std; using namespace libserial; 

there number of ways qualify type. 1 placing definition after using declaration of namespace type defined in:

#include "serialstream.h" #include <iostream>  #define port "/dev/ttyusb0"  using namespace std; using namespace libserial;  // qualified compiler searching through // declared namespaces , finding in `namespace libserial`.  serialstream ardu;  

another way qualify typename explicitly belonging in specific namespace:

libserial::serialstream ardu; // qualifies name 

having done that, second problem compiler needs know libserial library located in file system in order able link it.

assuming installed library default place maybe enough:

g++ main.cpp -o arducom -lserial 

otherwise may have specify library using -l switch:

g++ main.cpp -o arducom -wl,-rpath,/path/to/library/folder -l/path/to/library/folder -lserial 

the libserial library built using autotools so, if built , installed source provides linking instructions part of install process.

the instructions this:

---------------------------------------------------------------------- libraries have been installed in:    /path/to/libserial/lib  if ever happen want link against installed libraries in given directory, libdir, must either use libtool, , specify full pathname of library, or use '-llibdir' flag during linking , @ least 1 of following:    - add libdir 'ld_library_path' environment variable      during execution    - add libdir 'ld_run_path' environment variable      during linking    - use '-wl,-rpath -wl,libdir' linker flag    - have system administrator add libdir '/etc/ld.so.conf'  see operating system documentation shared libraries more information, such ld(1) , ld.so(8) manual pages. ----------------------------------------------------------------------