#Adding Data from binary file to a doubly linked list

8 messages · Page 1 of 1 (latest)

prime dewBOT
#

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spiral notch
#

How do i continue and I add the students in the list?
What do you mean by students? This is the first time you mention it

azure verge
#

'typedef struct nodeR* node;
typedef struct listR* list;

typedef struct{
char name[MAXSTRING];
unsigned long id;
}student;

struct nodeR{
student data;
node next;
node previous;
};

struct listR{
node head;
node tail;
};'

azure verge
violet lodge
#

!f

prime dewBOT
#

`Result load(```cpp
char *FileName, list l) {
FILE fp = fopen(FileName, "rb");
if (fp == NULL) { // If file does not exist create the file
fp = fopen(FileName, "wb");
if (fp == NULL) { // If there was an error making file
return F_WRITE_ERR;
}
}

*l = malloc(sizeof(struct listR));
if (*l == NULL) {
fclose(FileName);
return UNKNOWN_ERR;
}

fclose(fp);
return NO_ERR;
}
`

Result is just this :

`typedef enum {
NO_ERR,
MALLOC_ERR,
F_READ_ERR,
F_WRITE_ERR,
NON_INIT_LIST,
SYNTAX_ERR,
UNKNOWN_ERR
} Result;




How do i continue and I add the students in the list?
Lampros
Formatted by Nats
prime dewBOT
#

@azure verge

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Please don't delete forum posts. They can be helpful to refer to later and other members can learn from them. In the future you can use !solved to close a post and mark a post as solved.

azure verge
#

!solved