github.com/igggame/nebulas-go@v2.1.0+incompatible/nbre/util/enable_func_if.h (about) 1 // Copyright (C) 2018 go-nebulas authors 2 // 3 // This file is part of the go-nebulas library. 4 // 5 // the go-nebulas library is free software: you can redistribute it and/or 6 // modify 7 // it under the terms of the GNU General Public License as published by 8 // the Free Software Foundation, either version 3 of the License, or 9 // (at your option) any later version. 10 // 11 // the go-nebulas library is distributed in the hope that it will be useful, 12 // but WITHOUT ANY WARRANTY; without even the implied warranty of 13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 // GNU General Public License for more details. 15 // 16 // You should have received a copy of the GNU General Public License 17 // along with the go-nebulas library. If not, see 18 // <http://www.gnu.org/licenses/>. 19 // 20 #pragma once 21 #include "common/common.h" 22 23 namespace neb { 24 namespace util { 25 26 template <bool V> struct enable_func_if {}; 27 template <> struct enable_func_if<true> { 28 public: 29 template <typename Func> inline enable_func_if(Func &&f) { f(); } 30 }; 31 template <> struct enable_func_if<false> { 32 public: 33 template <typename Func> inline enable_func_if(Func &&) {} 34 }; 35 } 36 }