Binary to Text

[ResidentBiscuit]

So, I'm looking at making a test to binary program. Once it's done, I then want to look at the assembler that gets generated for learning purposes. Is there a simple way to do this, or do I need to do a bunch of

if(input == 'a')
     cout << "01100001";
...

I realize that for my purposes, I would likely be fine with just a few, but, I'm kind of a perfectionist so I can't just half way do a program. This approach would be rather tedious, so I was just curious if someone could point me to some handy built in feature for this :D

-Biscuit

[hamsterman]

Characters are numbers, so printing 'a' in binary is just as hard as printing 97 in binary. There is just one way to convert numbers to some base. That's using / and % operators (though when dealing with binary, these can become >> and &). If you can do it with decimal, you can do it with binary too.

As for built in, I don't think there is. Maybe in C libraries? This is weird, because there are methods to print in hex or oct and bin is not any different.

[DSLq5Di1]

http://www.cplusplus.com/reference/stl/bitset/

[ResidentBiscuit]

Hmm I actually meant text to binary, not sure if this makes a difference in your answers or not. I had it explained right in my post, just not the title.

[hamsterman]

It doesn't. Neither mine nor sloppy9's.

[ResidentBiscuit]

Hmm I don't see how bitset will help accomplish this

[o1vk4iN6]

Why don't you just test each bit using the bit operators?

char c = 'a';

for(unsigned char bit = (1 << (sizeof(char) * 8 - 1)); bit; bit >>= 1)
{
    cout << (c & bit) ? '1' : '0';
}

[DSLq5Di1]

A little reading comprehension goes a long way.

bitset reference wrote:

Apart from overriding several operators and to provide direct access to the bits, bitsets have the feature of being able to be constructed from and converted to both integer values and binary strings (see constructor, bitset::to_ulong and bitset::to_string).

http://www.cplusplus.com/reference/stl/bitset/bitset/
^ Example from constructor reference

// constructing bitsets
#include <iostream>
#include <string>
#include <bitset>
using namespace std;

int main ()
{
  bitset<10> first;                   // empty bitset

  bitset<10> second (120ul);          // initialize from unsigned long

  bitset<10> third (string("01011")); // initialize from string

  return 0;
}

bitset reference wrote:

They can also be directly inserted and extracted from streams in binary format.

cout << bitset<8>('a');

[Texan40]

bitset accomplishes it with the to_string() function. I don't know if this is what you were after but...

#include <bitset>
#include <iostream>
#include <string>

std::string to_binary(std::string text)
{
  std::string output;
  for(int idx = 0; idx < text.size(); ++idx)
  {
    std::bitset<4> sbyte(text.at(idx));
    output += sbyte.to_string();
    output += " ";
  }
  return output;
}

int main()
{
  std::string text = "The fat lazy hog ate the crisp cabbage";
  std::cout << to_binary(text) << std::endl;
  return 0;
}

[ResidentBiscuit]

Cool I'll try this out when I get home!