1/* 2Copyright 2016 The TensorFlow Authors. All Rights Reserved. 3 4Licensed under the Apache License, Version 2.0 (the "License"); 5you may not use this file except in compliance with the License. 6You may obtain a copy of the License at 7 8 http://www.apache.org/licenses/LICENSE-2.0 9 10Unless required by applicable law or agreed to in writing, software 11distributed under the License is distributed on an "AS IS" BASIS, 12WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13See the License for the specific language governing permissions and 14limitations under the License. 15*/ 16 17package tensorflow 18 19func Placeholder(g *Graph, name string, dt DataType) (Output, error) { 20 op, err := g.AddOperation(OpSpec{ 21 Type: "Placeholder", 22 Name: name, 23 Attrs: map[string]interface{}{ 24 "dtype": dt, 25 }, 26 }) 27 return op.Output(0), err 28} 29 30func Const(g *Graph, name string, value interface{}) (Output, error) { 31 t, ok := value.(*Tensor) 32 if !ok { 33 var err error 34 if t, err = NewTensor(value); err != nil { 35 return Output{}, err 36 } 37 } 38 op, err := g.AddOperation(OpSpec{ 39 Type: "Const", 40 Name: name, 41 Attrs: map[string]interface{}{ 42 "dtype": t.DataType(), 43 "value": t, 44 }, 45 }) 46 return op.Output(0), err 47} 48 49func Neg(g *Graph, name string, port Output) (Output, error) { 50 op, err := g.AddOperation(OpSpec{ 51 Type: "Neg", 52 Name: name, 53 Input: []Input{port}, 54 }) 55 return op.Output(0), err 56} 57 58func Add(g *Graph, name string, x, y Output) (Output, error) { 59 op, err := g.AddOperation(OpSpec{ 60 Type: "Add", 61 Name: name, 62 Input: []Input{x, y}, 63 }) 64 return op.Output(0), err 65} 66