RedBeard0531

# This was created by cxx_modules_builder. DO NOT EDIT.
MAKE_NINJA = /home/mstearn/opensource/cxx_modules_builder/modules_builder.py
CXX = /usr/sbin/clang++

# START HEADER
COMMONFLAGS = -stdlib=libc++ -pthread
DEBUGFLAGS = -ggdb3 -gsplit-dwarf
CXXFLAGS =  -fcolor-diagnostics -fPIC -Isrc -Ibuild/src  -Isrc/external/pegtl/include/tao/ -std=c++2a -DREALM_DEBUG=1 $COMMONFLAGS $DEBUGFLAGS
LIBS = -lcrypto -lc++experimental
LINKFLAGS = -fuse-ld=lld $COMMONFLAGS

RedBeard0531

#pragma once

#include <iterator>
#include <utility>
#include <coroutine>

// Only need one of these. Shouldn't depend on generator's T.
struct generator_sentinel {};

template <typename T>

RedBeard0531

-------------------------------- MODULE OT --------------------------------
EXTENDS Integers, TLC, FiniteSets, Sequences

CONSTANTS i_set, i_inc, i_nop \* Instruction model values
CONSTANT NULL

CONSTANT ImprovedAlgo

ASSUME ImprovedAlgo \in BOOLEAN

RedBeard0531

export module quux;
export struct quux{};

///////////

// bar.h
import quux

/////////

RedBeard0531

clang++ -std=c++2a -x c++-module iface.cpp --precompile -o iface.pcm -stdlib=libc++ 
clang++ -std=c++2a -x c++ consumer.cpp -c  -o consumer.o -fmodule-file=iface.pcm  -stdlib=libc++         

echo <<OUTPUT
In file included from consumer.cpp:2:
In file included from /usr/include/c++/v1/string:505:
In file included from /usr/include/c++/v1/string_view:176:
In file included from /usr/include/c++/v1/__string:57:
In file included from /usr/include/c++/v1/algorithm:643:
/usr/include/c++/v1/utility:574:1: error: redeclaration of deduction guide

RedBeard0531

// {{{
// vim: set foldmethod=marker: 
// g++ -O3 -pthread sc.cpp && ./a.out
#include <cstdio>
#include <thread>
#include <atomic>
using namespace std;

constexpr auto load_order = memory_order_acquire;
constexpr auto store_order = memory_order_release;

RedBeard0531

(depth 1 are direct includes from the cpp)

A single file from our codebase:
28 headers at depth 1
35 headers at depth 2
50 headers at depth 3
74 headers at depth 4
82 headers at depth 5
89 headers at depth 6
127 headers at depth 7

RedBeard0531

// A possible implementation of symmetic coroutines on top of the asymmetric coroutines ts.
// At the bottom of this file, I've rewritten the symmetric examples from Boot.Coroutine
// using this mechanism. You can see the originals at 
// https://www.boost.org/doc/libs/1_69_0/libs/coroutine/doc/html/coroutine/coroutine/symmetric.html

#include <experimental/coroutine>
#include <cassert>
#include <list>
#include <optional>
#include <vector>

RedBeard0531

template <typename T>
struct semi_lazy {
    struct promise_type {
        std::optional<T> val;
        std::function<void()> defer;
        suspend_never initial_suspend() { return {}; }
        suspend_always final_suspend() { return {}; }
        void return_value(T v) {
             val.emplace(std::move(v));

RedBeard0531

#include <type_traits>
#include <future>
#include <functional>

template <typename T>
struct expected {
    expected(const T&) {}
};
template <typename T>
struct Promise {