[Rock-dev] Strange size of some packed std::string

[Janosch Machowinski]

Hey,
we got some strange log files, were the size of
SOME std::string containers is reported to be 8 Bytes.
The size of the std::string container on the host system is
32 byte.

Log :
compound /base/samples/RigidBodyState_m [416] {
       (+0) compound /base/Time [8] {
         (+0) sint(8) (/int64_t) microseconds
       }; time
       (+8) container /std/string</int8_t> (8) sourceFrame
       (+16) container /std/string</int8_t> (8) targetFrame
       (+24) compound /wrappers/Matrix</double,3,1> [24]

Host :
       (+0) compound /base/Time [8] {
         (+0) sint(8) (/int64_t) microseconds
       }; time
       (+8) container /std/string</int8_t> (32) sourceFrame
       (+40) container /std/string</int8_t> (32) targetFrame

The c++ replay fails to replay these streams, while the
ruby version seems to be able to replay the streams.
Any idea what might be going on here ?
     Janosch


-- 
  Dipl. Inf. Janosch Machowinski
  SAR- & Sicherheitsrobotik

  Universität Bremen
  FB 3 - Mathematik und Informatik
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