Typedefs starting with `r' in truecrypt

• ReopenBootVolumeHeaderRequest common/apidrvr.h:242
• RESOLVE_SYMLINK_STRUCT common/apidrvr.h:151
• ret_type common/gfmul.h:60
• return_type crypto/aessmall.h:77
• RMD160_CTX crypto/rmd160.h:22