HP 3000 Manuals HP 3000 Manuals
MPE/iX File Numbers The values returned by HP C/iX library functions such as fopen and open do not represent values that are meaningful to the MPE/iX file system intrinsics. The function _mpe_fileno, declared in mpe.h, maps a file descriptor returned by a C library function such as open into an MPE/iX file number that can be passed directly to MPE/iX file system intrinsics. If fd is a file descriptor returned by the C library function open, _mpe_fileno(fd) returns the associated MPE/iX file number. For a description of _mpe_fileno, see chapter 5. [REV BEG] The _mpe_fileno function is not supported in the POSIX/iX library. However, equivalent functionality is provided by the _MPE_FILENO macro. The _MPE_FILENO macro is described in the MPE/iX Developer's Kit Reference Manual.[REV END]