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Many ROS message uses the date type float64 so I decided to use this type in my code but I have this error:
error: ‘float64’ does not name a type
private: float64 direction_x_;
^
I cannot find out the definition of float64. Anyone can tell me what files I should include to find out this data type definition?
Dan's answer is correct for describing what a float64 is.
If you want to get rid of the error you are seeing you probably need to have the following in your source (or header) file:
#include <std_msgs/Float64.h>
and change your variable declaration to:
std_msgs::Float64 direction_x_;
Check out the std_msgs and float64 wiki pages. You may also need to add std_msgs to your package.xml and CMakeLists.txt files in your package.
The msg wiki page has a table showing what message types are deserialized to in Python and C++. Specifically, float64 is a double (C++) or float (Python).
Asked: 2015-03-21 09:56:26 -0500
Seen: 24,724 times
Last updated: Mar 21 '15
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