calculation

calculation

  10월 16, 2018    !!

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/* calculation */ #include <stdio.h> #include <stdlib.h> #include <string.h>   #define MAXSIZE 1000   struct _CALCULATOR {       float Number[(MAXSIZE / 2)];     char Operator[(MAXSIZE) / 2]; };   char* String_Tokenize(char* String, char const* _Delimiter); int Number_in_Calculator(struct _CALCULATOR* _calculate, char* _paper); int Operator_in_Calculator(struct _CALCULATOR* _calculate, char* _paper);   void Nagative_Number_Distinction(struct _CALCULATOR* _calculate, int sign); float Priority_Operation(struct _CALCULATOR* _calculate, int The_Number_Of, int sign);   void print_testing(struct _CALCULATOR* _calculate);   int main(void) {       struct _CALCULATOR calculate = { .Number = { 0, },.Operator = { (char) 0, } };     char Paper[MAXSIZE] = "- 1 + 2 + 3 * 2 - 1 + 9 / 2 - 10 ";     char Copy_Paper[MAXSIZE] = { NULL, };     char Start_Sign = Paper[0];       memcpy(Copy_Paper, Paper, sizeof(Paper));       int Count_Number = 0, Count_Operator = 0;     Count_Number = Number_in_Calculator(&calculate, Paper);     Count_Operator = Operator_in_Calculator(&calculate, Copy_Paper);       int Sign = 0;     if (Start_Sign != '-') Sign = 1;       Nagative_Number_Distinction(&calculate, Sign);     //print_testing(&calculate);       if (Sign == 0) Sign = 1;     else Sign = 0;       float result = 0;     result = Priority_Operation(&calculate, Count_Number, Sign);       printf("%.3f\n", result);       //print_testing(&calculate);       return 0; }   float Priority_Operation(struct _CALCULATOR* _calculate, int The_Number_Of, int sign) {       int index = 0;     for (index = 0; _calculate->Operator[index] != NULL; index++) {           if (_calculate->Operator[index] == '*') {               _calculate->Number[index - sign] *= _calculate->Number[index - sign + 1];             _calculate->Number[index - sign + 1] = 0;         }         else if (_calculate->Operator[index] == '/') {               _calculate->Number[index - sign] /= _calculate->Number[index - sign + 1];             _calculate->Number[index - sign + 1] = 0;         }     }          float Calculation_Result = 0.f;     for (index = 0; index < The_Number_Of; index++) {           Calculation_Result += _calculate->Number[index];     }       return Calculation_Result; } void Nagative_Number_Distinction(struct _CALCULATOR* _calculate, int sign) {       int index = 0;     for (index = 0; _calculate->Operator[index] != NULL; index++) {           if (_calculate->Operator[index] == '-') {               _calculate->Number[index + sign] *= -1;         }     }       return; } int Number_in_Calculator(struct _CALCULATOR* _calculate, char* _paper) {       char* Pointer = NULL;     Pointer = String_Tokenize(_paper, " +-*/=");       int index = 0, The_Number_Of_Count = 0;     while (Pointer != NULL) {           if (atof(Pointer)) {               _calculate->Number[index++] = atof(Pointer);             The_Number_Of_Count++;         }         Pointer = String_Tokenize(NULL, " +-*/=");     }       return The_Number_Of_Count; } int Operator_in_Calculator(struct _CALCULATOR* _calculate, char* _paper) {       char* Pointer = NULL;     Pointer = String_Tokenize(_paper, " 0123456789=");       int index = 0, The_Number_Of_Count = 0;     while (Pointer != NULL) {           if (*Pointer) {               _calculate->Operator[index++] = *Pointer;             The_Number_Of_Count++;         }         Pointer = String_Tokenize(NULL, " 0123456789=");     }       return The_Number_Of_Count; } char* String_Tokenize(char* _String, char const* _Delimiter) {       char static* String = NULL;     char const* Delimiter = NULL;       if (_String == NULL) {           _String = String;     }     else {           String = _String;     }       if (*_String == NULL) return NULL;       while (*String) {           Delimiter = _Delimiter;         while (*Delimiter) {               if (*String == *Delimiter) {                   *String = NULL;                 String++;                 return _String;             }             Delimiter++;         }         String++;     }       return _String; } void print_testing(struct _CALCULATOR* _calculate) {       int loop = 0;     for (loop = 0; _calculate->Number[loop] != 0; loop++) {           printf("%.2f\n", _calculate->Number[loop]);     }     for (loop = 0; _calculate->Operator[loop] != 0; loop++) {           printf("%c\n", _calculate->Operator[loop]);     }       return; } Colored by Color Scripter

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