native

The Native Library is intended to provide first class libraries for C++11. The code here is designed from the ground up with C++11 so that we can make smarter choices and tradeoffs to provide code that will stand the test of time.

Dependencies

boost 1.54.0

Hopefully you are already using boost. If not, download and install from http://www.boost.org/.

Lower versions may also work, but are not tested. Use at your own risk.
googletest (Google C++ Testing Framework)

Optional.

Download and install to run the unit tests. http://code.google.com/p/googletest/

Install

Right now Native only consists of header files, so all that is needed is to reference the ./include in the include paths for your project.

Requirements

Compiler that supports C++11.

Examples

Immutable String

#include "native/istring.h"

using native::istring; // 'i' for immutable

// immutable string
istring s = "some really long string";

// shallow copy, immutable strings can share memory
istring copy = s;

// istring::literal performs no allocations!!!
s = istring::literal("this is a string literal");

auto lambda = [s]()
{
    // efficiently copied into lambda
    // immutable and thread safe - return this lambda anywhere
    std::cout << s << std::endl;
};

String Slices

istring s = "foobar";

// take a slice of a string from characters 3 to 6
string_splice splice_s = s(3,6); // "bar"

Benchmarks

Mac OS 10.9 2.4 GHz Intel Core i5
Results taken from fastest performance in 100,000 iterations

String hashes are cached in istring for values that do not fit within the small string optimization. Therefore, we do not have to recalculate them.

Hashes for strings created with istring::literal are computed at compile time.

vinzenz / native