compile errors in cpp code

[AntonyM55]

Context

• Pytorch version: libtorch-macos-2.0.1.zip
• Operating System and version: macos 13.4.1 (c)

Your Environment

• Installed using source? [yes/no]: no
• Are you planning to deploy it using docker container? [yes/no]: no
• Is it a CPU or GPU environment?: CPU
• Which example are you using: cpp/custom-dataset, cpp/distributed
• Link to code or data to repro [if any]: 741de70

Current Behavior

build custom-dataset, get 3 error
build distributed, get 2 error

Possible Solution

project custom-dataset:
error 1 and 2 because std::random_shuffle no longer exists in C++17, so I fixed std::random_shuffle with std::shuffle

e.g.
change
std::random_shuffle(train.begin(), train.end());
std::random_shuffle(test.begin(), test.end());

to
std::random_device rd;
std::mt19937 seed_train(rd());
std::mt19937 seed_test(rd());
std::shuffle(train.begin(), train.end(), seed_train);
std::shuffle(test.begin(), test.end(), seed_test);

I can't fix the 3rd error.

project distributed:

1. change
   #include <c10d/ProcessGroupMPI.hpp>
   to
   #include <torch/csrc/distributed/c10d/ProcessGroupMPI.hpp>

2. at line 52
   auto pg = c10d::ProcessGroupMPI::createProcessGroupMPI();
   return type is c10::intrusive_ptr

and in function waitWork, the type is
void waitWork(std::shared_ptrc10d::ProcessGroupMPI pg, std::vector<std::shared_ptrc10d::ProcessGroupMPI::WorkMPI> works)

so I changed waitWork to
void waitWork(c10::intrusive_ptrc10d::ProcessGroupMPI pg, std::vector<c10::intrusive_ptrc10d::ProcessGroupMPI::WorkMPI> works)

and get 2 error

/opt/libtorch/include/c10/util/intrusive_ptr.h:348:13: error: no matching function for call to 'assign_ptr_'

I can't fix the error.

Steps to Reproduce

cd custom-dataset
mkdir build
cd build
cmake -DCMAKE_PREFIX_PATH=/opt/libtorch ..
make
...
cd distributed
mkdir build
cd build
cmake -DCMAKE_PREFIX_PATH=/opt/libtorch ..
make

Failure Logs [if any]

/Users/anthony/Rnd/gits/pytorch/examples/cpp/custom-dataset/custom-dataset.cpp:90:8: error: no member named 'random_shuffle' in namespace 'std'
std::random_shuffle(train.begin(), train.end());

/Users/anthony/Rnd/gits/pytorch/examples/cpp/custom-dataset/custom-dataset.cpp:91:8: error: no member named 'random_shuffle' in namespace 'std'
std::random_shuffle(test.begin(), test.end());

/Users/anthony/Rnd/gits/pytorch/examples/cpp/custom-dataset/custom-dataset.cpp:122:15: error: no matching constructor for initialization of 'torch::nn::Functional'
push_back(Functional(torch::log_softmax, 1, torch::nullopt));

[Mark Saroufim]

Wanna send out a PR? We also dont have any good tests for the C++ code so would love to merge something here