-/* atlc - arbitrary transmission line calculator, for the analysis of
-transmission lines are directional couplers.
-
-Copyright (C) 2002. Dr. David Kirkby, PhD (G8WRB).
-
-This program is free software; you can redistribute it and/or
-modify it under the terms of the GNU General Public License
-as published by the Free Software Foundation; either package_version 2
-of the License, or (at your option) any later package_version.
-
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with this program; if not, write to the Free Software
-Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
-USA.
-
-Dr. David Kirkby, e-mail drkirkby at ntlworld.com
-
-*/
-
-#define OKAY 0
-#define CANT_OPEN_FILE_FOR_READING 1
-#define CANT_OPEN_FOR_WRITING 2
-#define CANT_OPEN_FILE_FOR_APPENDING 3
-#define CANT_CLOSE_FILE 4
-#define WRITE_FAILURE 5
-#define THE_WIDTH_w_DIVIDED_BY_THE_HEIGHT_H_IS_TOO_LARGE 6
-#define PROGRAM_NOT_IMPLEMENTED 7
-#define PROGRAM_CALLED_WITH_WRONG_NUMBER_OF_ARGUMENTS 8
-#define UNACCEPTABLE_ERROR_WHEN_CONVERTING_TO_INTEGERS 9
-#define MEMORY_ALLOCATION_ERROR_IN_VECTOR 10
-#define MEMORY_ALLOCATION_ERROR_IN_IVECTOR 11
-#define MEMORY_ALLOCATION_ERROR_IN_CVECTOR 12
-#define MEMORY_ALLOCATION_ERROR_IN_DVECTOR 13
-#define MEMORY_ALLOCATION_ERROR_IN_CMATRIX 14
-#define MEMORY_ALLOCATION_ERROR_IN_UCMATRIX 15
-#define MEMORY_ALLOCATION_ERROR_IN_MATRIX 16
-#define MEMORY_ALLOCATION_ERROR_IN_DMATRIX 17
-#define MEMORY_ALLOCATION_ERROR_IN_IMATRIX 18
-#define MEMORY_ALLOCATION_ERROR_IN_STRING 19
-#define MEMORY_ALLOCATION_ERROR_IN_USTRING 20
-#define SILLY_ARGUMENTS_IN_FREE_VECTOR 21
-#define SILLY_ARGUMENTS_IN_FREE_IVECTOR 22
-#define SILLY_ARGUMENTS_IN_FREE_CVECTOR 23
-#define SILLY_ARGUMENTS_IN_FREE_DVECTOR 24
-#define SILLY_ARGUMENTS_IN_FREE_DMATRIX 25
-#define SILLY_ARGUMENTS_IN_FREE_CMATRIX 26
-#define SILLY_ARGUMENTS_IN_FREE_UCMATRIX 27
-#define SILLY_ARGUMENTS_IN_FREE_IMATRIX 28
-#define SILLY_ARGUMENTS_IN_FREE_STRING 29
-#define SILLY_ARGUMENTS_IN_FREE_USTRING 30
-#define VOLTAGE_OUT_OF_RANGE 31
-#define ARGUMENT_w_OUT_OF_RANGE 32
-#define ARGUMENT_h_OUT_OF_RANGE 33
-#define ARGUMENT_s_OUT_OF_RANGE 34
-#define ARGUMENT_g_OUT_OF_RANGE 35
-#define ARGUMENT_Er1_OUT_OF_RANGE 36
-#define ARGUMENT_Er2_OUT_OF_RANGE 37
-#define ARGUMENT_W_OUT_OF_RANGE 36
-#define ARGUMENT_H_OUT_OF_RANGE 38
-#define ARGUMENT_t_OUT_OF_RANGE 39
-#define ARGUMENT_ideal_Zodd_OUT_OF_RANGE 41
-#define ARGUMENT_ideal_Zeven_OUT_OF_RANGE 42
-#define IDEAL_Zodd_NOT_LESS_THAN_IDEAL_Zeven 43
-#define NOT_LINKED_WITH_GSL_LIBRARY 44
-#define NOT_LINKED_WITH_THREADS_LIBRARY 45
-#define NOT_LINKED_WITH_MPI_LIBRARY 46
-#define UNDEFINED_COLOUR_IN_BITMAP 47
-#define NOT_A_VALID_BITMAP_FILE 48
-#define OS2_FORMAT_BMP_FILE 49
-#define NOT_A_WINDOZE_FORMAT_BITMAP 50
-#define BITMAP_NOT_24_BIT 51
-#define WIDTH_OR_HEIGHT_ZERO_IN_BITMAP 52
-#define BITPLANES_NOT_1_IN_BITMAP 53
-#define COLOURMAP_GREATER_THAN_256 54
-#define MALLOC_FAILED 55
-#define IMPOSSIBLE_COUPLING_COEFFICIENT 56
-#define FMAX_NOT_ABOVE_FMIN 57
-#define IMPOSSIBLE_TO_MAKE_COUPLER_THAT_LENGTH 58
-#define W_OR_H_TOO_SMALL 59
-#define INVALID_SWITCH 60
-#define DIMENSION_LESS_THAN_ZERO 61
-#define PERMITTIVITY_LESS_THAN_1 62
-#define VARIABLE_NOT_INITIALISED 63
-#define GAP_BETWEEN_CONDUCTORS_TOO_SMALL 64
-#define VOLTAGE_NOT_MINUS_ONE_V_AS_EXPECTED 65
-#define VOLTAGE_NOT_PLUS_ONE_V_AS_EXPECTED 66
-#define VOLTAGE_NOT_ZERO_V_AS_EXPECTED 67
-#define THREAD_CREATION_FAILED 68
-#define MUTEX_INITIALISATION_FAILED 69
-#define MUTEX_ALLOCATION_FAILED 70
-#define USER_REQUESTED_TOO_MANY_THREADS 71
-#define THREAD_FAILED_TO_JOIN 71
-#define CANT_OBTAIN_SEMAPHORE 73
-#define SEM_INIT_FAILED 74
-#define SEM_POST_FAILED 75
-#define SEM_WAIT_FAILED 76
-#define PTHREAD_ATTR_SETINHERITSCHED_FAILED 77
-#define PTHREAD_ATTR_INIT_FAILED 78
-#define PTHREAD_ATTR_SETSCOPE_FAILED 79
-#define PTHREAD_MUTEX_LOCK_FAILED 80
-#define PTHREAD_MUTEX_UNLOCK_FAILED 81
-#define PTHREAD_COND_WAIT_FAILED 82
-#define PTHREAD_COND_BROADCAST_FAILED 83
-#define SILLY_ARGUMENTS_IN_FREE_SCMATRIX 84
-#define MEMORY_ALLOCATION_ERROR_IN_SCMATRIX 85
-#define CANT_READ_ALL_OF_FILE 86
-#define FSEEK_FAILURE 87
-#define FTELL_FAILURE 88
-#define DOMAIN_ERROR 89
-#define INTERNAL_ERROR 90