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4
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1 function perror (name, err) |
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2 |
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3 # usage: perror (name, err) |
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4 # |
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5 # Print an error message for error number `err' from function "name". |
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6 # |
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7 # Messages correspond to the following subroutine versions: |
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8 # |
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9 # npsol : 4.0 |
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10 # qpsol : 3.2 |
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11 |
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12 if (nargin != 2) |
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13 error ("usage: perror (name, err)"); |
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14 endif |
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15 |
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16 if (! isstr (name)) |
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17 error ("perror: first argument must be a string"); |
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18 endif |
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19 |
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20 if (! is_scalar (err)) |
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21 error ("perror: second argument must be a scalar"); |
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22 endif |
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23 |
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24 if (strcmp (name, "fsolve")) |
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25 |
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26 if (info == -1) |
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27 printf ("input error\n"); |
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28 elseif (info == 1) |
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29 printf ("solution converged to requested tolerance\n"); |
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30 elseif (info == 4) |
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31 printf ("iteration limit exceeded\n"); |
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32 elseif (info == 3) |
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33 printf ("iteration is not making good progress\n"); |
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34 else |
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35 error ("perror: unrecognized error code for fsolve"); |
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36 endif |
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37 |
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38 elseif (strcmp (name, "npsol")) |
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39 |
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40 if (err == 0) |
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41 printf ("optimal solution found\n"); |
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42 elseif (err == 1) |
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43 printf ("weak local solution found\n"); |
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44 elseif (err == 2) |
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45 printf ("no feasible point for linear constraints and bounds\n"); |
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46 elseif (err == 3) |
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47 printf ("no feasible point found for nonlinear constraints\n"); |
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48 elseif (err == 4) |
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49 printf ("iteration limit reached\n"); |
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50 elseif (err == 6) |
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51 printf ("current point cannot be improved upon\n"); |
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52 elseif (err == 7) |
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53 printf ("user-supplied derivatives appear to be incorrect\n"); |
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54 elseif (err == 9) |
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55 printf ("internal error: invalid input parameter\n"); |
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56 else |
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57 error ("perror: unrecognized error code for npsol"); |
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58 endif |
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59 |
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60 elseif (strcmp (name, "qpsol")) |
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61 |
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62 if (err == 0) |
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63 printf ("optimal solution found\n"); |
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64 elseif (err == 1) |
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65 printf ("weak local solution found\n"); |
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66 elseif (err == 2) |
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67 printf ("solution appears to be unbounded\n"); |
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68 elseif (err == 3) |
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69 printf ("solution appears optimal, but optimality can't be verified\n"); |
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70 elseif (err == 4) |
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71 printf ("iterates of the QP phase appear to be cycling\n"); |
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72 elseif (err == 5) |
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73 printf ("iteration limit reached during QP phase\n"); |
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74 elseif (err == 6) |
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75 printf ("no feasible point found during LP phase\n"); |
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76 elseif (err == 7) |
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77 printf ("iterates of the LP phase appear to be cycling\n"); |
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78 elseif (err == 8) |
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79 printf ("iteration limit reached during LP phase\n"); |
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80 elseif (err == 9) |
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81 printf ("internal error: invalid input parameter\n"); |
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82 else |
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83 error ("perror: unrecognized error code for qpsol"); |
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84 endif |
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85 |
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86 else |
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87 |
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88 error ("perror: unrecognized function name"); |
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89 |
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90 endif |
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91 |
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92 endfunction |
