Cast to right type for reserved_ subtraction (#6167)
Cast to right type for reserved_ subtraction (#6167)

reserved_ is a size_t so ensure that the output of cur_ - buf_ is cast to that to avoid compiler warnings.
DavadDi/flatbuffers,alexames/flatbuffers,evolutional/flatbuffers,alexames/flatbuffers,google/flatbuffers,evolutional/flatbuffers,alexames/flatbuffers,google/flatbuffers,alexames/flatbuffers,evolutional/flatbuffers,google/flatbuffers,google/flatbuffers,alexames/flatbuffers,alexames/flatbuffers,google/flatbuffers,evolutional/flatbuffers,evolutional/flatbuffers,alexames/flatbuffers,DavadDi/flatbuffers,DavadDi/flatbuffers,evolutional/flatbuffers,alexames/flatbuffers,evolutional/flatbuffers,google/flatbuffers,DavadDi/flatbuffers,DavadDi/flatbuffers,google/flatbuffers,evolutional/flatbuffers,evolutional/flatbuffers,google/flatbuffers,evolutional/flatbuffers,alexames/flatbuffers,google/flatbuffers,alexames/flatbuffers,alexames/flatbuffers,DavadDi/flatbuffers,evolutional/flatbuffers,google/flatbuffers,google/flatbuffers,alexames/flatbuffers,alexames/flatbuffers,google/flatbuffers,evolutional/flatbuffers,google/flatbuffers,alexames/flatbuffers,evolutional/flatbuffers,google/flatbuffers,google/flatbuffers,alexames/flatbuffers