Loading structure from file
This code saves an actor to a file. After modifying the age, I load the actor back from file. What's strange is it still has the modified age. I would expect it to be 28 again? Edit: The loading function returns 1.
Code:
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
typedef struct _skills
{
int short_sword;
int axe;
} SKILLS;
typedef struct _actor
{
char name[20];
int age;
SKILLS skills;
} ACTOR;
void Actor_Init(ACTOR *p_Actor, const char *name, int age)
{
strcpy(p_Actor->name, name);
p_Actor->age = age;
p_Actor->skills.short_sword = 50;
p_Actor->skills.axe = 5;
}
int Actor_Save(ACTOR *p_Actor, const char *filename)
{
FILE *fp;
fp = fopen(filename, "wb");
if (fp == NULL)
return 0;
fwrite(&p_Actor, sizeof(ACTOR), 1, fp);
fclose(fp);
return 1;
}
int Actor_Load(ACTOR *p_Actor)
{
FILE *fp;
fp = fopen("actors.dat", "rb");
if (fp == NULL)
return 0;
fread(&p_Actor, sizeof(ACTOR), 1, fp);
fclose(fp);
return 1;
}
void Actor_Show(ACTOR *p_Actor)
{
printf("Name: %s\n", p_Actor->name);
printf("Age: %d\n", p_Actor->age);
printf("Sword: %d\n", p_Actor->skills.short_sword);
printf("Axe: %d\n", p_Actor->skills.axe);
}
int main(void)
{
ACTOR PC;
Actor_Init(&PC, "Test", 28);
Actor_Save(&PC, "actors.dat");
PC.age = 29;
Actor_Load(&PC);
Actor_Show(&PC);
return 0;
}
