microsoft/onnxruntime-extensions

// Copyright (c) Microsoft Corporation. All rights reserved.
// Licensed under the MIT License.
#pragma once
#include <iostream>
#include <sstream>

template <typename T>
inline void MakeStringInternal(std::ostringstream& ss, const T& t) noexcept {
  ss << t;
}

template <>
inline void MakeStringInternal(std::ostringstream& ss, const std::vector<int64_t>& t) noexcept {
  for (auto it = t.begin(); it != t.end(); ++it) {
    ss << *it << "x";
  }
}

template <typename T, typename... Args>
void MakeStringInternal(std::ostringstream& ss, const T& t, const Args&... args) noexcept {
  MakeStringInternal(ss, t);
  MakeStringInternal(ss, args...);
}

template <typename... Args>
std::string MakeString(const Args&... args) {
  std::ostringstream ss;
  MakeStringInternal(ss, args...);
  return std::string(ss.str());
}

inline int64_t Size(const std::vector<int64_t>& shape) {
  int64_t res = 1;
  for (auto it = shape.begin(); it != shape.end(); ++it) {
    res *= *it;
  }
  return res;
}