Function feOptAction

Singular/feOpt.cc:202–341

}

static const char* feOptAction(feOptIndex opt)
{
  // do some special actions
  switch(opt)
  {
      case FE_OPT_BATCH:
        if (feOptSpec[FE_OPT_BATCH].value)
          fe_fgets_stdin=fe_fgets_dummy;
        return NULL;

      case FE_OPT_HELP:
        feOptHelp(feArgv0);
        return NULL;

      case FE_OPT_PROFILE:
         traceit=1024;
         return NULL;

      case FE_OPT_QUIET:
        if (feOptSpec[FE_OPT_QUIET].value)
          si_opt_2 &= ~(Sy_bit(0)|Sy_bit(V_LOAD_LIB));
        else
          si_opt_2 |= Sy_bit(V_LOAD_LIB)|Sy_bit(0);
        return NULL;

      case FE_OPT_NO_TTY:
        if (feOptSpec[FE_OPT_NO_TTY].value)
          fe_fgets_stdin=fe_fgets;
        return NULL;

      case FE_OPT_SDB:
      #ifdef HAVE_SDB
        if (feOptSpec[FE_OPT_SDB].value)
          sdb_flags = 1;
        else
          sdb_flags = 0;
      #endif
        return NULL;

      case FE_OPT_VERSION:
        {
        char *s=versionString();
        printf("%s",s);
        omFree(s);
        return NULL;
        }

      case FE_OPT_ECHO:
        si_echo = (int) ((long)(feOptSpec[FE_OPT_ECHO].value));
        if (si_echo < 0 || si_echo > 9)
          return "argument of option is not in valid range 0..9";
        return NULL;

      case FE_OPT_RANDOM:
        siRandomStart = (unsigned int) ((unsigned long)
                                          (feOptSpec[FE_OPT_RANDOM].value));
        siSeed=siRandomStart;
        factoryseed(siRandomStart);