You've a missing <span style="font-family: courier new,monospace;">></span> on line 15 of add_two_ints_client.cpp.<br><br><div class="gmail_quote">On Mon, May 31, 2010 at 11:08 AM, ibwood <span dir="ltr"><<a href="mailto:ianbenjiman@hotmail.com">ianbenjiman@hotmail.com</a>></span> wrote:<br>

<blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;"><br>
Hi all,<br>
<br>
I am trying to compile some C++ code with ROS, examining a service and<br>
client. Before attempting to run the service, I tried to 'make' the stack<br>
with the two source codes in it. Here is the code and the output of the<br>
command:<br>
<br>
$ roscd beginner_tutorials<br>
$ make<br>
mkdir -p bin<br>
cd build && cmake -Wdev -DCMAKE_TOOLCHAIN_FILE=`rospack find<br>
rosbuild`/rostoolchain.cmake  ..<br>
[rosbuild] Building package beginner_tutorials<br>
[rosbuild] Including /home/ian/ros/ros/core/rospy/cmake/rospy.cmake<br>
[rosbuild] Including /home/ian/ros/ros/core/roscpp/cmake/roscpp.cmake<br>
-- Configuring done<br>
-- Generating done<br>
-- Build files have been written to:<br>
/home/ian/ros/ros/ros_tutorials/beginner_tutorials/build<br>
cd build && make<br>
make[1]: Entering directory<br>
`/home/ian/ros/ros/ros_tutorials/beginner_tutorials/build'<br>
make[2]: Entering directory<br>
`/home/ian/ros/ros/ros_tutorials/beginner_tutorials/build'<br>
make[3]: Entering directory<br>
`/home/ian/ros/ros/ros_tutorials/beginner_tutorials/build'<br>
make[3]: Leaving directory<br>
`/home/ian/ros/ros/ros_tutorials/beginner_tutorials/build'<br>
[  0%] Built target rospack_genmsg_libexe<br>
make[3]: Entering directory<br>
`/home/ian/ros/ros/ros_tutorials/beginner_tutorials/build'<br>
make[3]: Leaving directory<br>
`/home/ian/ros/ros/ros_tutorials/beginner_tutorials/build'<br>
[  0%] Built target rosbuild_precompile<br>
make[3]: Entering directory<br>
`/home/ian/ros/ros/ros_tutorials/beginner_tutorials/build'<br>
make[3]: Leaving directory<br>
`/home/ian/ros/ros/ros_tutorials/beginner_tutorials/build'<br>
make[3]: Entering directory<br>
`/home/ian/ros/ros/ros_tutorials/beginner_tutorials/build'<br>
[ 50%] Building CXX object<br>
CMakeFiles/add_two_ints_client.dir/src/add_two_ints_client.o<br>
/home/ian/ros/ros/ros_tutorials/beginner_tutorials/src/add_two_ints_client.cpp:<br>
In function ‘int main(int, char**)’:<br>
/home/ian/ros/ros/ros_tutorials/beginner_tutorials/src/add_two_ints_client.cpp:15:<br>
error: no matching function for call to<br>
‘beginner_tutorials::AddTwoInts::AddTwoInts(const char [13])’<br>
/home/ian/ros/ros/ros_tutorials/beginner_tutorials/src/AddTwoInts.h:16:<br>
note: candidates are: beginner_tutorials::AddTwoInts::AddTwoInts()<br>
/home/ian/ros/ros/ros_tutorials/beginner_tutorials/src/AddTwoInts.h:16:<br>
note:                 beginner_tutorials::AddTwoInts::AddTwoInts(const<br>
beginner_tutorials::AddTwoInts&)<br>
/home/ian/ros/ros/ros_tutorials/beginner_tutorials/src/add_two_ints_client.cpp:15:<br>
error: parse error in template argument list<br>
/home/ian/ros/ros/ros_tutorials/beginner_tutorials/src/add_two_ints_client.cpp:15:<br>
error: conversion from ‘<unresolved overloaded function type>’ to non-scalar<br>
type ‘ros::ServiceClient’ requested<br>
make[3]: *** [CMakeFiles/add_two_ints_client.dir/src/add_two_ints_client.o]<br>
Error 1<br>
make[3]: Leaving directory<br>
`/home/ian/ros/ros/ros_tutorials/beginner_tutorials/build'<br>
make[2]: *** [CMakeFiles/add_two_ints_client.dir/all] Error 2<br>
make[2]: Leaving directory<br>
`/home/ian/ros/ros/ros_tutorials/beginner_tutorials/build'<br>
make[1]: *** [all] Error 2<br>
make[1]: Leaving directory<br>
`/home/ian/ros/ros/ros_tutorials/beginner_tutorials/build'<br>
make: *** [all] Error 2<br>
<br>
<br>
<br>
my source files are in an "src" package located in the "beginner_tutorials"<br>
package, and my header files are located in the same folder as the cpp<br>
source files.. Here are the two programs:<br>
<br>
------------------------------------<br>
add_two_ints_server.cpp<br>
------------------------------------<br>
#include "ros.h"<br>
#include "AddTwoInts.h"<br>
<br>
bool add(beginner_tutorials::AddTwoInts::Request  &req,<br>
       beginner_tutorials::AddTwoInts::Response &res )<br>
{<br>
res.sum = req.a + req.b;<br>
ROS_INFO("request: x=%ld, y=%ld", (long int)req.a, (long int)req.b);<br>
ROS_INFO("sending back response: [%ld]", (long int)res.sum);<br>
return true;<br>
}<br>
<br>
int main(int argc, char **argv)<br>
{<br>
ros::init(argc, argv, "add_two_ints_server");<br>
ros::NodeHandle n;<br>
<br>
ros::ServiceServer service = n.advertiseService("add_two_ints", add);<br>
ROS_INFO("Ready to add two ints.");<br>
ros::spin();<br>
<br>
return 0;<br>
}<br>
<br>
<br>
-------------------------------------<br>
add_two_ints_client.cpp<br>
-------------------------------------<br>
#include "ros.h"<br>
#include "AddTwoInts.h"<br>
#include <cstdlib><br>
<br>
int main(int argc, char **argv)<br>
{<br>
  ros::init(argc, argv, "add_two_ints_client");<br>
  if (argc != 3)<br>
  {<br>
     ROS_INFO("usage: add_two_ints_client X Y");<br>
     return 1;<br>
  }<br>
<br>
  ros::NodeHandle n;<br>
  ros::ServiceClient client =<br>
n.serviceClient<beginner_tutorials::AddTwoInts("add_two_ints");<br>
  beginner_tutorials::AddTwoInts srv;<br>
  srv.request.a = atoll(argv[1]);<br>
  srv.request.b = atoll(argv[2]);<br>
  if (client.call(srv))<br>
  {<br>
     ROS_INFO("Sum: %ld", (long int)srv.response.sum);<br>
  }<br>
  else<br>
  {<br>
     ROS_ERROR("Failed to call service add_two_ints");<br>
     return 1;<br>
  }<br>
<br>
return 0;<br>
}<br>
<br>
<br>
I added these two lines to CMakeLists.txt (located in the beginner_tutorials<br>
package) as well:<br>
rosbuild_add_executable(add_two_ints_server src/add_two_ints_server.cpp)<br>
rosbuild_add_executable(add_two_ints_client src/add_two_ints_client.cpp)<br>
<br>
<br>
I have been trying to figure out what is wrong with the compiler. So the<br>
question is.. where did I go wrong? Thanks in advance for any help and/or<br>
direction.<br>
<br>
-Ian<br>
--<br>
View this message in context: <a href="http://ros-users.122217.n3.nabble.com/C-compiling-problem-with-ROS-tp859217p859217.html" target="_blank">http://ros-users.122217.n3.nabble.com/C-compiling-problem-with-ROS-tp859217p859217.html</a><br>


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</blockquote></div><br>