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Add calculator impl

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This commit is contained in:
mrnek 2023-05-29 12:04:50 +03:00
parent 9b60c22f96
commit bc896de6b2
2 changed files with 173 additions and 180 deletions
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313
calculator.c
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@ -1,187 +1,140 @@
#include <stdio.h>
#include <stdlib.h>
enum calculator_state {
NUMBER_FIRST,
NUMBER_SECOND,
RESULT
};
enum calculator_op {
NO_OP,
ADD,
SUB,
DIV,
MUL
};
struct calculator {
// 1 ÷èñëî
int num1;
// 2 ÷èñëî
int num2;
// 3 îïåðàöèÿ
enum calculator_op operation;
// 4 ðåçóëüòàò
int result;
// 5 ñîñòîÿíèå àòîìàòà
enum calculator_state state;
};
int main() {
struct calculator calc;
calc.state = NUMBER_FIRST;
calc.operation = NO_OP;
calc.num1 = 0;
calc.num2 = 0;
calc.result = 0;
int input;
while (1) {
scanf("%d", &input);
switch (calc.state) {
case NUMBER_FIRST:
switch (input) {
case 0:
calc.num1 = (calc.num1 * 10) + 7;
break;
case 1:
calc.num1 = (calc.num1 * 10) + 8;
break;
case 2:
calc.num1 = (calc.num1 * 10) + 9;
break;
case 3:
calc.operation = DIV;
calc.state = NUMBER_SECOND;
break;
case 4:
calc.num1 = (calc.num1 * 10) + 4;
break;
case 5:
calc.num1 = (calc.num1 * 10) + 5;
break;
case 6:
calc.num1 = (calc.num1 * 10) + 6;
break;
case 7:
calc.operation = MUL;
calc.state = NUMBER_SECOND;
break;
case 8:
calc.num1 = (calc.num1 * 10) + 1;
break;
case 9:
calc.num1 = (calc.num1 * 10) + 2;
case 10:
calc.num1 = (calc.num1 * 10) + 3;
break;
case 11:
calc.operation = SUB;
calc.state = NUMBER_SECOND;
break;
case 12:
calc.num1 = 0;
break;
case 13:
calc.state = NUMBER_FIRST;
calc.operation = NO_OP;
calc.num1 = 0;
calc.num2 = 0;
calc.result = 0;
break;
case 14:
break;
case 15:
calc.operation = ADD;
calc.state = NUMBER_SECOND;
break;
}
printf("num1: %d | num2: %d | result: %d | operation: %d | state: %d", calc.num1, calc.num2, calc.result, calc.operation, calc.state);
#include "calculator.h"
void handleCalc(struct calculator *calc, int input) {
switch (calc->state) {
case NUMBER_FIRST:
switch (input) {
case 0:
calc->num1 = (calc->num1 * 10) + 7;
break;
case NUMBER_SECOND:
switch (input) {
case 0:
calc.num2 = (calc.num2 * 10) + 7;
break;
case 1:
calc.num2 = (calc.num2 * 10) + 8;
break;
case 2:
calc.num2 = (calc.num2 * 10) + 9;
break;
case 3:
break;
case 4:
calc.num2 = (calc.num2 * 10) + 4;
break;
case 5:
calc.num2 = (calc.num2 * 10) + 5;
break;
case 6:
calc.num2 = (calc.num2 * 10) + 6;
break;
case 7:
break;
case 8:
calc.num2 = (calc.num2 * 10) + 1;
break;
case 9:
calc.num2 = (calc.num2 * 10) + 2;
case 10:
calc.num2 = (calc.num2 * 10) + 3;
break;
case 11:
break;
case 12:
calc.num2 = 0;
break;
case 13:
calc.state = NUMBER_FIRST;
calc.operation = NO_OP;
calc.num1 = 0;
calc.num2 = 0;
calc.result = 0;
break;
case 14:
switch (calc.operation) {
case ADD:
calc.result = calc.num1 + calc.num2;
calc.state = RESULT;
break;
case SUB:
calc.result = calc.num1 - calc.num2;
calc.state = RESULT;
break;
case MUL:
calc.result = calc.num1 * calc.num2;
calc.state = RESULT;
break;
case DIV:
calc.result = calc.num1 / calc.num2;
calc.state = RESULT;
break;
}
break;
case 15:
break;
}
printf("num1: %d | num2: %d | result: %d | operation: %d | state: %d", calc.num1, calc.num2, calc.result, calc.operation, calc.state);
case 1:
calc->num1 = (calc->num1 * 10) + 8;
break;
case RESULT:
switch (input) {
case 14:
calc.state = NUMBER_FIRST;
calc.operation = NO_OP;
calc.num1 = 0;
calc.num2 = 0;
calc.result = 0;
printf("num1: %d | num2: %d | result: %d | operation: %d | state: %d", calc.num1, calc.num2, calc.result, calc.operation, calc.state);
break;
}
case 2:
calc->num1 = (calc->num1 * 10) + 9;
break;
case 3:
calc->operation = DIV;
calc->state = NUMBER_SECOND;
break;
case 4:
calc->num1 = (calc->num1 * 10) + 4;
break;
case 5:
calc->num1 = (calc->num1 * 10) + 5;
break;
case 6:
calc->num1 = (calc->num1 * 10) + 6;
break;
case 7:
calc->operation = MUL;
calc->state = NUMBER_SECOND;
break;
case 8:
calc->num1 = (calc->num1 * 10) + 1;
break;
case 9:
calc->num1 = (calc->num1 * 10) + 2;
break;
case 10:
calc->num1 = (calc->num1 * 10) + 3;
break;
case 11:
calc->operation = SUB;
calc->state = NUMBER_SECOND;
break;
case 12:
calc->num1 = (calc->num1 * 10);
break;
case 13:
clearCalc(calc);
break;
case 14:
break;
case 15:
calc->operation = ADD;
calc->state = NUMBER_SECOND;
break;
}
break;
case NUMBER_SECOND:
switch (input) {
case 0:
calc->num2 = (calc->num2 * 10) + 7;
break;
case 1:
calc->num2 = (calc->num2 * 10) + 8;
break;
case 2:
calc->num2 = (calc->num2 * 10) + 9;
break;
case 3:
break;
case 4:
calc->num2 = (calc->num2 * 10) + 4;
break;
case 5:
calc->num2 = (calc->num2 * 10) + 5;
break;
case 6:
calc->num2 = (calc->num2 * 10) + 6;
break;
case 7:
break;
case 8:
calc->num2 = (calc->num2 * 10) + 1;
break;
case 9:
calc->num2 = (calc->num2 * 10) + 2;
break;
case 10:
calc->num2 = (calc->num2 * 10) + 3;
break;
case 11:
break;
case 12:
calc->num2 = (calc->num2 * 10);
break;
case 13:
clearCalc(calc);
break;
case 14:
switch (calc->operation) {
case ADD:
calc->result = calc->num1 + calc->num2;
calc->state = RESULT;
break;
case SUB:
calc->result = calc->num1 - calc->num2;
calc->state = RESULT;
break;
case MUL:
calc->result = calc->num1 * calc->num2;
calc->state = RESULT;
break;
case DIV:
calc->result = calc->num1 / calc->num2;
calc->state = RESULT;
break;
}
break;
case 15:
break;
}
break;
case RESULT:
switch (input) {
case 14:
clearCalc(calc);
break;
}
break;
}
}
void clearCalc(struct calculator* calc) {
calc->state = NUMBER_FIRST;
calc->operation = NO_OP;
calc->num1 = 0;
calc->num2 = 0;
calc->result = 0;
}

40
calculator.h Normal file
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/*
* calculator.h
*
* Created: 29.05.2023 12:01:39
* Author: mrnek
*/
#ifndef CALCULATOR_H_
#define CALCULATOR_H_
enum calculator_state {
NUMBER_FIRST,
NUMBER_SECOND,
RESULT
};
enum calculator_op {
NO_OP,
ADD,
SUB,
DIV,
MUL
};
struct calculator {
// 1 ÷èñëî
int num1;
// 2 ÷èñëî
int num2;
// 3 îïåðàöèÿ
enum calculator_op operation;
// 4 ðåçóëüòàò
int result;
// 5 ñîñòîÿíèå àòîìàòà
enum calculator_state state;
};
void clearCalc(struct calculator *calc);
void handleCalc(struct calculator *calc, int input)
#endif /* CALCULATOR_H_ */