Hi there!
On Sun, 3 Jan 1999, Catalin Bucur wrote:
> Hello and Happy New Year,
Nod. Grin, same to you :)
> The program is simple, so what is the problem? I don't have the right memcpy.c
> file, or it's an error on 40 line of memcpy.c?
The problem seems to be the fact that buf is a uninitalized pointer
probably pointed to garbge...
> ----------------------------------------------------------------------------
> // My program
>
> #include <stdio.h>
> #include <string.h>
>
> const dim=123;
>
> FILE *f;
> int i;
>
> int main()
> {
> char *word, *buf;
> char en[41], rom[81];
> unsigned long t;
>
> printf("WORD: ");
> scanf("%s",word);
Hrm, actually, I'm surprised this line didn't give you trouble either...
You need to have word and buf pointing to something....
Before using either pointer, say something like this:
word = malloc(dim);
buf = malloc(dim);
Note you'll have to #include <stdlib.h> to have malloc's prototype
And you'll have to call free() later probably :)
> if ((f = fopen("//misc//dos//cpp//english//dict_er", "rb")) == NULL)
You don't need to double the frontslash, only the backslash because it's
that special escape char...
Linux is cool enough to let you do this (try typing "cat
//////etc//////passwd" and it'll still work :)
> {
> fprintf(stderr, "Cannot open input file.\n");
> return 1;
> }
>
> // Here, if a comment the following three lines, the program works fine.
> // I have tried fread instead of fgets, but the same result.
Nod, I think the problem is with buf being uninitalized...
> do
> fgets(buf, dim+1, f);
> while(strncmp(buf,word,strlen(word)));
>
> if ((t=ftell(f)) <= dim*9)
> fseek(f, 0, SEEK_SET);
> else
> fseek(f, -dim*9, SEEK_CUR);
>
> do
> {
> fread(en, 41, 1, f);
> printf("| %.25s| ",en);
> fread(rom, 81, 1, f);
> printf("%.50s|",rom);
> fseek(f, 1L, SEEK_CUR);
> }
> while( (ftell(f) < t+dim*8) && strncmp(en,"zuc",3) );
> // Here I want to put while(... && !feof(f));
> // but the program running and running...
> // and doesn't stop !?!
Hrm, I'm not sure about this... I usually keep reading until I get a zero
returned from read() (or fgets)... Somebody else might be able to help
you out here....
Best of luck to you :)
-Brett
