iostream

I'm getting this really bizarre (in my perspective) error in VS2012 when trying to compile some code that had previously worked. I use CUDA to generate a 2D array of data and my goal is to write it to a text file...but when I append this snippet of code from the example at the end of my main function // basic file operations #include <iostream> #include <fstream> using namespace std; int main () { ofstream myfile; myfile.open ("example.txt"); myfile << "Writing this to a file.\n"; myfile.close(); return 0; } I get 1> C:\Users\Karsten Chu\New Google Drive\Research\Visual Studio 2012\Projects

Here's the code: package testpack; import java.io.*; public class InputStreamReadDemo { private void readByte() throws IOException { System.out.print("Enter the byte of data that you want to be read: "); int a = System.in.read(); System.out.println("The first byte of data that you inputted corresponds to the binary value "+Integer.toBinaryString(a)+" and to the integer value "+a+"."); // tried writing System.in.close(); and System.in.reset(); } private void readLine() throws IOException { BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); System.out.print("Enter a line

Suppose I'm reading tokens from a std::istream . What is a good way to know the number of newlines that have been read from the stream? This is for the purpose of error reporting in a parser. I don't want to use std::getline to read input. Here is a test case. I am looking for something functionally similar to GetLineNumber , which in this case would return the line number of the last read token. std::stringstream ss; ss << "1 \n 2 \n 3 \n"; int x; while (ss >> x) { std::cout << "Line " << GetLineNumber(ss) << ": " << x << std::endl; } The output to this example should be: Line 1: 1 Line 2: 2

What are the possible options and the most appropiate for reading an executable file in Java. I want produce the hexadecimal representation of an .exe file. Im thinking of reading the file in binary and then doing the conversion. But how can i read the .exe? 1) read the file in as bytes. use BufferedInputStream( new FileInputStream( new File("bin.exe") ) ) 2) convert each byte to hex format. static final String HEXES = "0123456789ABCDEF"; public static String getHex( byte [] raw ) { if ( raw == null ) { return null; } final StringBuilder hex = new StringBuilder( 2 * raw.length ); for ( final

I am wondering whether "all" C++ formatting libraries eventually fall back to a *sprintf function to format numbers. I am asking this because: Looking at the iostreams library that comes with Visual C++, I can see that numbers input into a stream will eventuall be formatted with sprintf_s . Boost.Format just uses the available iostreams library as far as I can tell. FastFormat eventually uses vsprintf to format a number. So, are there iostreams implementations that do not use *sprintf and do the formatting themselves? Are there other formatting libraries that do not forward formatting of