Function frexp

dnn/include/megdnn/dtype/bfloat16.hpp:2331–2333

Decompress floating point number. \param arg number to decompress \param exp address to store exponent at \return significant in range [0.5, 1) template typename enable ::type frexp(T arg, int *exp) { return functions::frexp(arg, exp); }

//		template<typename T> typename enable<bfloat16,T>::type frexp(T
// arg, int *exp) { return functions::frexp(arg, exp); }
MEGDNN_HOST MEGDNN_DEVICE inline bfloat16 frexp(bfloat16 arg, int* exp) {
    return functions::frexp(arg, exp);
}
MEGDNN_HOST MEGDNN_DEVICE inline bfloat16 frexp(expr arg, int* exp) {
    return functions::frexp(arg, exp);
}