144 lines
4.7 KiB
C
144 lines
4.7 KiB
C
#include <stdio.h>
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#include "calculator.h"
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void handleCalc(struct calculator *calc, int input) {
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switch (calc->state) {
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case NUMBER_FIRST:
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switch (input) {
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case 0:
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calc->num1 = (calc->num1 * 10) + 7;
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break;
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case 1:
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calc->num1 = (calc->num1 * 10) + 8;
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break;
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case 2:
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calc->num1 = (calc->num1 * 10) + 9;
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break;
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case 3:
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calc->operation = DIV;
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calc->state = NUMBER_SECOND;
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break;
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case 4:
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calc->num1 = (calc->num1 * 10) + 4;
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break;
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case 5:
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calc->num1 = (calc->num1 * 10) + 5;
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break;
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case 6:
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calc->num1 = (calc->num1 * 10) + 6;
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break;
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case 7:
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calc->operation = MUL;
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calc->state = NUMBER_SECOND;
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break;
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case 8:
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calc->num1 = (calc->num1 * 10) + 1;
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break;
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case 9:
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calc->num1 = (calc->num1 * 10) + 2;
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break;
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case 10:
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calc->num1 = (calc->num1 * 10) + 3;
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break;
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case 11:
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calc->operation = SUB;
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calc->state = NUMBER_SECOND;
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break;
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case 12:
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calc->num1 = (calc->num1 * 10);
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break;
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case 13:
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clearCalc(calc);
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break;
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case 14:
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break;
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case 15:
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calc->operation = ADD;
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calc->state = NUMBER_SECOND;
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break;
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}
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break;
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case NUMBER_SECOND:
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switch (input) {
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case 0:
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calc->num2 = (calc->num2 * 10) + 7;
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break;
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case 1:
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calc->num2 = (calc->num2 * 10) + 8;
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break;
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case 2:
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calc->num2 = (calc->num2 * 10) + 9;
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break;
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case 3:
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break;
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case 4:
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calc->num2 = (calc->num2 * 10) + 4;
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break;
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case 5:
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calc->num2 = (calc->num2 * 10) + 5;
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break;
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case 6:
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calc->num2 = (calc->num2 * 10) + 6;
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break;
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case 7:
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break;
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case 8:
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calc->num2 = (calc->num2 * 10) + 1;
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break;
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case 9:
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calc->num2 = (calc->num2 * 10) + 2;
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break;
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case 10:
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calc->num2 = (calc->num2 * 10) + 3;
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break;
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case 11:
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break;
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case 12:
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calc->num2 = (calc->num2 * 10);
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break;
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case 13:
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clearCalc(calc);
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break;
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case 14:
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switch (calc->operation) {
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case ADD:
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calc->result = calc->num1 + calc->num2;
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calc->state = RESULT;
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break;
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case SUB:
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calc->result = calc->num1 - calc->num2;
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calc->state = RESULT;
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break;
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case MUL:
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calc->result = calc->num1 * calc->num2;
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calc->state = RESULT;
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break;
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case DIV:
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calc->result = calc->num1 / calc->num2;
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calc->state = RESULT;
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break;
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}
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break;
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case 15:
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break;
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}
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break;
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case RESULT:
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switch (input) {
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case 14:
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clearCalc(calc);
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break;
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}
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break;
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}
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}
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void clearCalc(struct calculator* calc) {
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calc->state = NUMBER_FIRST;
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calc->operation = NO_OP;
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calc->num1 = 0;
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calc->num2 = 0;
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calc->result = 0;
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}
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