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annotate rogue3/options.c @ 233:0990adf580ee

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Declare some function arguments as const. Some functions, mostly in fight.c, declared variables as pointers to const char but passed them to functions that took pointers to ordinary char. The strings did not actually get modified, so adding 'const' to the function definitions removed the warnings.
author John "Elwin" Edwards
date Sun, 06 Mar 2016 19:32:47 -0500
parents e676d52b5d09
children e52a8a7ad4c5
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1 /*
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2 * This file has all the code for the option command.
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3 * I would rather this command were not necessary, but
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4 * it is the only way to keep the wolves off of my back.
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5 *
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6 * @(#)options.c 3.3 (Berkeley) 5/25/81
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7 *
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8 * Rogue: Exploring the Dungeons of Doom
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9 * Copyright (C) 1980, 1981 Michael Toy, Ken Arnold and Glenn Wichman
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10 * All rights reserved.
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11 *
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12 * See the file LICENSE.TXT for full copyright and licensing information.
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13 */
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14
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15 #include <stdlib.h>
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16 #include "curses.h"
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17 #include <ctype.h>
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18 #include <string.h>
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19 #include "machdep.h"
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20 #include "rogue.h"
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21
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22 #define NUM_OPTS (sizeof optlist / sizeof (OPTION))
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23
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24 /*
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25 * description of an option and what to do with it
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26 */
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27 struct optstruct {
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28 char *o_name; /* option name */
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29 char *o_prompt; /* prompt for interactive entry */
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30 void *o_opt; /* pointer to thing to set */
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31 void (*o_putfunc)(); /* function to print value */
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32 int (*o_getfunc)(); /* function to get value interactively */
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33 };
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34
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35 typedef struct optstruct OPTION;
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36
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37 int allowchange(OPTION *opt); /* doesn't need to be externally visible */
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38
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39 OPTION optlist[] = {
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40 {"terse", "Terse output: ",
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41 (int *) &terse, put_bool, get_bool },
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42 {"flush", "Flush typeahead during battle: ",
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43 (int *) &fight_flush, put_bool, get_bool },
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44 {"jump", "Show position only at end of run: ",
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45 (int *) &jump, put_bool, get_bool },
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46 {"step", "Do inventories one line at a time: ",
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47 (int *) &slow_invent, put_bool, get_bool },
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48 {"askme", "Ask me about unidentified things: ",
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49 (int *) &askme, put_bool, get_bool },
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50 {"name", "Name: ",
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51 (int *) whoami, put_str, get_str },
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52 {"fruit", "Fruit: ",
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53 (int *) fruit, put_str, get_str },
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54 {"file", "Save file: ",
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55 (int *) file_name, put_str, get_str }
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56 };
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57
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58 /*
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59 * print and then set options from the terminal
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60 */
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61 void
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62 option()
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63 {
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64 OPTION *op;
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65 int retval;
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66
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67 wclear(hw);
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68 touchwin(hw);
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69 /*
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70 * Display current values of options
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71 */
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72 for (op = optlist; op <= &optlist[NUM_OPTS-1]; op++)
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73 {
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74 if (allowchange(op))
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75 {
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76 waddstr(hw, op->o_prompt);
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77 (*op->o_putfunc)(op->o_opt);
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78 waddch(hw, '\n');
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79 }
0
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80 }
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81 /*
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82 * Set values
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83 */
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84 wmove(hw, 0, 0);
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85 for (op = optlist; op <= &optlist[NUM_OPTS-1]; op++)
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86 {
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87 if (!allowchange(op))
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88 continue;
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89 waddstr(hw, op->o_prompt);
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90 if ((retval = (*op->o_getfunc)(op->o_opt, hw)))
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91 {
0
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92 if (retval == QUIT)
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93 break;
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94 #if 0
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95 /* Support for MINUS has been removed because making it work with
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96 * hidden unchangable options without underflowing optlist will
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97 * require a complete rewrite. And it should also be rewritten
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98 * so option() doesn't count on get_str() to put the cursor in the
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99 * right place, because that makes it a pain to understand.
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100 */
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