CUDA Bind

A version of bind for CUDA. Works from within both host and device code, and can handle __device__ and __host__ __device__ lambdas.

Example code:

__device__ float mul(float x, float y) { return x * y; }

__global__ my_kernel(float *) {
  using namespace cb;
  using namespace cb::placeholders;

  auto mul2 = bind(mul, _1, 2);
  auto mul24 = bind(mul, 2, 4);

  mul2(4);
  mul24();
}