eof

I am trying to write a program with a menu that reads from a text file a few different ways. I'm just working on menu option #2 still (reading backwards from the end of the file), but I can't wrap my head around what I'm doing wrong. I've been at this for a few days now and just can't find any good resources to help on this. Any help would be appreciated. #include <iostream> #include <string> #include <iomanip> #include <istream> #include <math.h> #include <fstream> using namespace std; const int SIZE = 20; typedef char String[SIZE]; //prototypes void Menu(int &); void ReadFile(ifstream &);

My code needs to read in all of a file. Currently I'm using the following code: BufferedReader r = new BufferedReader(new FileReader(myFile)); while (r.ready()) { String s = r.readLine(); // do something with s } r.close(); If the file is currently empty, though, then s is null, which is no good. Is there any Reader that has an atEOF() method or equivalent? A standard pattern for what you are trying to do is: BufferedReader r = new BufferedReader(new FileReader(myFile)); String s = r.readLine(); while (s != null) { // do something with s s = r.readLine(); } r.close(); The docs say: public int

Lets say I have the below C code: int getLine (char line[]) { int c, i=0; while( (c=getchar()) != EOF ) line[i++]=c; line[i++] = c; return i; } >> Enter: 007 >> ^Z >> Output: If we closely observe the way I give output above, I am pressing Enter before stimulating EOF. This means, the length of string is 4 not 3 (excluding EOF). When I am doing my exercises, I am really facing some trouble with that extra \n. How do I stimulate EOF without newline? Is it possible at all? >> Enter: 007^Z >> ^Z >> Output: length=6 Converting my comment into an answer: On which platform? On Unix and derivatives,

I currently have a working parser. It parses a file once(not what I want it to do) and then outputs parsed data into a file. I need it to keep parsing and appending to the same output file until the end of the input file. Looks something like this. try { // my code parsing the data and appending to eof of output. (works) } catch (EOFException eof){ } Everything is done except the while loop. It only parses once when I need it to keep parsing. I'm looking for a while loop function to reach eof. I'm also using a DataInputStream. Is there some sort of DataInputStream.hasNext function?

I have an assignment to "Write a C program that allows a user to enter up to 20 integers (it will stop accepting numbers based on a sentinel value or based on the 20-integer limit being reached). The program should then display the numbers in the reverse order of entry." I decided to make my sentinel value "EOF" (or CTRL+D / CRTL+Z). My code has some really erratic behavior: You have to press the EOF keys twice (which also creates a blank entry that is counted int the array. The first digit from the first entry gets truncated. Everything else seems to work OK but, this is clearly not the

I am new to C Programming and Ubuntu. I was reading the "The C Programming Language" by D.M Ritchie where I found the following code: #include <stdio.h> int main() { int c; int nc=0; while((c = getchar()) != EOF) { nc++; } printf("%d Characters \n",nc); return 0; } But while running the program I enter "Hello" ,then CTRL+D twice to get the actual number of characters which is 5. But when I enter "Hello" then CTRL+D once , nothing happens, the terminal still waits for input. Why? Spikatrix Quoting @Veritas's comment , On linux Ctrl-D only works when the buffer is already empty otherwise it just

I am currently working on implementing a program based on the huffman algorithm in Java, and I am at the stage where I need to output the encoded content to a file. I am a bit confused about how to implement the header and eof needed for decoding. For my header at the moment I have all the unique values that occur from the input file and their frequency, but on some articles I have seen people do it with 0 or 1 represents the nodes and then the frequency (which I am a bit puzzled by as it doesn't say what the symbol is). Also, for the EOF as I understand it I encode it like the symbols so it