strcat error

Code:

---

int filelen;
filelen = fseek(fp,0,SEEK_END);

char buffer[sizeof(filelen)];

rewind(fp);

char ch;
ch =  getc(fp);

while(ch!=EOF){
        strcat(buffer,ch);
        ch = getc(fp);
}

---

error C2664: 'strcat' : cannot convert parameter 1 from 'char (*)[4]' to 'char *'
Types pointed to are unrelated; conversion requires reinterpret_cast, C-style cast or function-style cast

anyway i don't understand what the problem here is, any ideas?

You are trying to put a char array of 4 in to a single char. Make char ch; char ch*;

sizeof(filelen) returns 4 because it's the size of the variable, not the size of the file.

Use:

Code:

---

char *buffer = new char[filelen];

---

You'd have to delete[] it afterwards though:

Code:

---

int filelen;
filelen = fseek(fp,0,SEEK_END);

char *buffer = new char[filelen];
buffer[0] = 0;
rewind(fp);

char ch;
ch =  getc(fp);

while(ch != EOF){
        strcat(buffer,ch);
        ch = getc(fp);
}

---

Also, can't you just use fread?

I could use fread, but still I never know how big the 2nd argument should be.

size_t fread( void *buffer, size_t size, size_t count, FILE *stream );

Code:

---

MYSTRUCT toread;

fread(&toread, sizeof(toread), 1, fp);

---

what is the MYSTRUCT used for?

It's just a type placeholder. It signifies that you put the size of the item you are reading, and the 3rd argument is the number of items of that size.

But when you compile it expects a structure or at least needs one. Anyway here what I have

Code:

---

FILE *fp;

fp = fopen("C:/Matt/files.txt", "rb");

//int filelen;
//filelen = fseek(fp,0,SEEK_END);

MYSTRUCT toread;

fread(&toread,sizeof(toread),1,fp);

SendMessage(editbx,WM_SETTEXT,0,(LPARAM)toread);

---

by-the-way thanks alot for your help!

No no no...change MYSTRUCT to whatever you're reading from the file.