I just got this book "Exploring C++" and I'm on my first lesson. I've been doing C# for a couple years as a hobby so i though why not give C++ a try.
In the book it says i need to setup my compiler to use standard C++. I am using visual studio 2010 so i did. http://msdn.microsoft.com/en-us/library/ms235629.aspx
but when i go to compile the code it all works fine except for one if statement.
i have triple checked just as instructed so it must be something with the tools.
specifically
if (not in) // this line here
{
std::perror(argv[1]);
return EXIT_FAILURE;
}
The full sample
#include <algorithm>
#include <fstream>
#include <iostream>
#include <iterator>
#include <ostream>
#include <string>
#include <vector>
void read(std::istream& in, std::vector<std::string>& text)
{
std::string line;
while (std::getline(in, line))
text.push_back(line);
}
int main(int argc, char* argv[])
{
std::vector<std::string> text;
if (argc <2)
read(std::cin, text);
else
{
std::ifstream in(argv[1]);
if (not in)
{
std::perror(argv[1]);
return EXIT_FAILURE;
}
read(in,text);
}
std::sort(text.begin(), text.end());
std::copy(text.begin(), text.end(),
std::ostream_iterator<std::string>(std::cout, "\n"));
}
I would really like to continue with this book so any help is greatly appreciated.
And I apologize if this is awfully noobish of me.
