C언어 fwrite() fread()로 enum, struct 읽고 쓰기

#include <stdio.h>

#include <errno.h>

#include <string.h>

typedef enum _product_size {SIZE_S = 1, SIZE_M, SIZE_L, SIZE_XL, SIZE_XXL} PRODUCT_SIZE;

typedef enum _product_type {TYPE_OUTER=1, TYPE_TOP, TYPE_BOTTOM} PRODUCT_TYPE;

typedef struct _cloth

{

char product_name[64];

unsigned product_price;

char brand_name[64];

PRODUCT_TYPE product_type;

PRODUCT_SIZE product_size;

} cloth;

void printPS(PRODUCT_SIZE ps);

void printPT(PRODUCT_TYPE pt);

int main(int argc, char const *argv[])

{

/* code */

FILE *outfile = NULL;

FILE *infile = NULL;

int i = 0;

int num_cloth = 0;

cloth temp_product = {0};

printf("How many products are here?");

scanf("%d", &num_cloth);

if(num_cloth > 0 ){

outfile = fopen( "C:\\temp\\cloth.dat", "w");

if(NULL != outfile){

printf("Success !! fopen() [%s] [%s]\n", "C:\\temp\\cloth.dat", "wb");

for(i = 0; i < num_cloth; i++){

printf("What is the Product Name?\t");

scanf("%s", temp_product.product_name);

printf("How much is Product's price?\t");

scanf("%d",&temp_product.product_price);

printf("What is the Brand Name?\t");

scanf("%s", temp_product.brand_name);

printf("What is the Product Type?(1 : Outer \t 2 : Top \t 3 : Bottom)\t");

scanf("%d", &temp_product.product_type);

printf("What is the Product Size?(1 : S \t 2: M \t 3 : L \t 4 : XL \t 5 : XXL)\t");

scanf("%d", &temp_product.product_size);

fwrite(&temp_product, sizeof(cloth), 1, outfile);

printf("fwrite() Result : %d\n", errno);

}

fclose(outfile);

}

else

{

printf("Fail !! fopen() [%s] [%s]", "C:\\temp\\cloth.dat", "w");

}

}

cloth read = {0};

infile = fopen("C:\\temp\\cloth.dat", "r");

if(NULL != infile){

printf("File[%s] , Mode[%s] fopen() Success\n", "C:\\temp\\cloth.dat", "r");

while(fread(&read, sizeof(cloth), 1, infile))

{

printf("Product Name : %s\nBrand Name : %s\nProduct Price %d\n",

read.product_name, read.brand_name, read.product_price);

printPS(read.product_size);

printPT(read.product_type);

}

printf("fread() Success : %d \n", errno);

fclose(infile);

}

else

{

printf("File[%s], Mode[%s] fopen() Fail, ErrorNo : %d\n","C:\\temp\\cloth.dat", "r", errno);

}

return 0;

}

void printPS(PRODUCT_SIZE ps){

char returnVal[3] = {0};

switch(ps){

case SIZE_S:

strcpy(returnVal,"S");

break;

case SIZE_M:

strcpy(returnVal,"M");

break;

case SIZE_L:

strcpy(returnVal,"L");

break;

case SIZE_XL:

strcpy(returnVal,"XL");

break;

case SIZE_XXL:

strcpy(returnVal,"XXL");

break;

default:

break;

}

printf("%s\n", returnVal);

}

void printPT(PRODUCT_TYPE pt){

char returnVal[6] = {0};

switch(pt){

case TYPE_TOP:

strcpy(returnVal,"TOP");

break;

case TYPE_OUTER:

strcpy(returnVal,"OUTER");

break;

case TYPE_BOTTOM:

strcpy(returnVal,"BOTTOM");

break;

default:

break;

}

printf("%s\n", returnVal);

}

> Executing task: ./file_practice.exe <

How many products are here?3
Success !! fopen() [C:\temp\cloth.dat] [wb]
What is the Product Name?       Hood-T
How much is Product's price?    98000
What is the Brand Name? Giri
What is the Product Type?(1 : Outer      2 : Top         3 : Bottom)    2
What is the Product Size?(1 : S          2: M    3 : L   4 : XL          5 : XXL)       2
fwrite() Result : 0
What is the Product Name?       Black-Slacks
How much is Product's price?    48000
What is the Brand Name? Giri
What is the Product Type?(1 : Outer      2 : Top         3 : Bottom)    3
What is the Product Size?(1 : S          2: M    3 : L   4 : XL          5 : XXL)       3
fwrite() Result : 0
What is the Product Name?       wool-coat
How much is Product's price?    198000
What is the Brand Name? Giri
What is the Product Type?(1 : Outer      2 : Top         3 : Bottom)    1
What is the Product Size?(1 : S          2: M    3 : L   4 : XL          5 : XXL)       2
fwrite() Result : 0
File[C:\temp\cloth.dat] , Mode[r] fopen() Success
Product Name : Hood-T
Brand Name : Giri
Product Price 98000
Size : 2
Type : 2
M
TOP
Product Name : Black-Slacks
Brand Name : Giri
Product Price 48000
Size : 3
Type : 3
L
BOTTOM
Product Name : wool-coat
Brand Name : Giri
Product Price 198000
Size : 2
Type : 1
M
OUTER
fread() Success : 0