-int fputs (char* s, FILE* f)
+int fputs (const char* s, FILE* f)
{
/* Check if the file is open or if there is an error condition */
if ((f->f_flags & _FOPEN) == 0 || (f->f_flags & (_FERROR | _FEOF)) != 0) {
- return -1;
+ return EOF;
}
/* Write the string */