Reading and writing to files C++ -

this question exact duplicate of:

• feof() , fscanf() stop working after scanning byte 1b char. because 'esc' in ascii? can do? 1 answer

i've got problem regarding output/input files. here program:

#include <bits/stdc++.h>  using namespace std;  int main() {     file * out;     out=fopen("tmp.txt", "w");     for(int i=0; i<256; i++)     {         fprintf(out, "%c", char(i));     }     fclose(out);     file * in;     in=fopen("tmp.txt", "r");     while(!feof(in))     {         char a=fgetc(in);         cout<<int(a)<<endl;     }     fclose(in); } 

and here output:

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 -1 

why stopping quickly? mean char(26) eof? how write file (of type) overcome problem?
i'm looking way freely write values (of range, can char, int or sth else) file , reading it.

works me *), few remarks:

1. you should not use #include <bits/stdc++.h>, internal header intended compiler use, not included client apps.
2. as characters translated (e.g. eol) or interpreted in text (default) mode, should open files in binary mode.
3. reading (signed) char , converting int result in negative values past 127.
4. as fgetc returns int, not need conversion signed char , @ all.

see here the code corrections.

*) apparently mentioned in other comments it might not work on windows in text mode (see point 2.).