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annotate tests/agcl/examples/good/rcalc.h @ 6:607e3be6bad8

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Adjust to the moving target called the C++ standard. Apparently nowadays it's not allowed to define an explicit copy constructor but not an assignment operator. Consequently, defining the explicit copy constructor in terms of the implicit/automatic assignment operator for general convenience no longer works. Add assignment operators. Caution: not tested with the IBM compiler, but there's no particular reason it shouldn't work.
author David A. Holland
date Mon, 30 May 2022 23:46:22 -0400
parents 13d2b8934445
children
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1 #ifndef RCALC_H
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2 #define RCALC_H
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3
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4 typedef union {
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5 long alignment;
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6 char ag_vt_2[sizeof(int)];
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7 char ag_vt_3[sizeof(long)];
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8 } rcalc_vs_type;
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9
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10 typedef enum {
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11 rcalc_ws_token = 1, rcalc_calculation_token = 3, rcalc_expression_token,
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12 rcalc_eof_token, rcalc_term_token, rcalc_factor_token = 9,
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13 rcalc_thousands_token = 15, rcalc_hundreds_token, rcalc_m_token = 18,
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14 rcalc_hundreds_field_token, rcalc_tens_token, rcalc_c_token = 22,
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15 rcalc_d_token, rcalc_count_hundreds_token, rcalc_tens_field_token,
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16 rcalc_units_token, rcalc_x_token = 28, rcalc_l_token,
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17 rcalc_count_tens_token, rcalc_i_token, rcalc_v_token,
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18 rcalc_count_units_token, rcalc_roman_numeral_token = 40
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19 } rcalc_token_type;
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20
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21 typedef struct rcalc_pcb_struct{
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22 rcalc_token_type token_number, reduction_token, error_frame_token;
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23 int input_code;
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24 int input_value;
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25 int line, column;
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26 int ssx, sn, error_frame_ssx;
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27 int drt, dssx, dsn;
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28 int ss[128];
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29 rcalc_vs_type vs[128];
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30 int ag_ap;
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31 const char *error_message;
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32 char read_flag;
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33 char exit_flag;
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34 int input_context;
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35 int cs[128];
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36 int bts[128], btsx;
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37 unsigned char * pointer;
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38 unsigned char * la_ptr;
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39 const unsigned char *key_sp;
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40 int save_index, key_state;
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41 char ag_msg[82];
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42 } rcalc_pcb_type;
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43
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44 #ifndef PRULE_CONTEXT
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45 #define PRULE_CONTEXT(pcb) (&((pcb).cs[(pcb).ssx]))
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46 #define PERROR_CONTEXT(pcb) ((pcb).cs[(pcb).error_frame_ssx])
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47 #define PCONTEXT(pcb) ((pcb).cs[(pcb).ssx])
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48 #endif
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49
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50 #ifndef AG_RUNNING_CODE
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51 /* PCB.exit_flag values */
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52 #define AG_RUNNING_CODE 0
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53 #define AG_SUCCESS_CODE 1
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54 #define AG_SYNTAX_ERROR_CODE 2
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55 #define AG_REDUCTION_ERROR_CODE 3
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56 #define AG_STACK_ERROR_CODE 4
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57 #define AG_SEMANTIC_ERROR_CODE 5
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58 #endif
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59
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60 extern rcalc_pcb_type rcalc_pcb;
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61 void init_rcalc(void);
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62 void rcalc(void);
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63 #endif
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64