Added __float2half_rn() and __half2float()

AlexeyAB

2018-02-22 b2b5756d86670b787dac440020922eeb5e8a1442

 src/network.h

@@ -64,6 +64,7 @@
    #ifdef GPU
    float **input_gpu;
    float **truth_gpu;
   int wait_stream;
    #endif
} network;