andrewrk

This is from the live coding stream: https://youtu.be/aDd0BexKWps

This version of zig should be good: 0.5.0+913f7d04

andrewrk

# The directory that contains `stdlib.h`.
# On POSIX-like systems, include directories be found with: `cc -E -Wp,-v -xc /dev/null`
include_dir=C:\Program Files (x86)\Windows Kits\10\\Include\10.0.18362.0\ucrt
# The system-specific include directory. May be the same as `include_dir`.
# On Windows it's the directory that includes `vcruntime.h`.
# On POSIX it's the directory that includes `sys/errno.h`.
sys_include_dir=C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Tools\MSVC\14.15.26726\lib\x64\\..\..\include

# The directory that contains `crt1.o` or `crt2.o`.
# On POSIX, can be found with `cc -print-file-name=crt1.o`.

andrewrk

	.text
	.globl	_start
_start:
	movl	$1, %eax
	movl	$1, %edi
	movl	$msg, %esi
	movl	$12, %edx
	syscall
	movl	$60, %eax
	xorl	%edi, %edi

andrewrk

const std = @import("std");
const Allocator = std.mem.Allocator;

const suspending_implementation = true; // try flipping this to false

fn fib(allocator: *Allocator, x: u32) error{OutOfMemory}!u32 {
    if (x <= 1) return x;

    if (suspending_implementation) {
        suspend {

andrewrk

var x: i32 = 1;

export fn entry() void {
    const p = async simpleAsyncFn();
}
fn simpleAsyncFn() void {
    x += 1;
    suspend;
    x += 1;
}

andrewrk

fn simpleAsyncFn() void {
    x += 1;
    suspend;
    x += 1;
}
// implementation with switch
const Frame = struct {
    index: u2,
};
fn simpleAsyncFn(locals: *Frame) void {

andrewrk

[nix-shell:~/downloads/zig/build]$ ./zig build-exe --c-source hello.c -target x86_64-windows-gnu --library c  --verbose-cc --verbose-link
/home/andy/downloads/zig/build/zig cc -MD -MV -MF zig-cache/tmp/RYvsWTfvvK2C-hello.obj.d -nostdinc -fno-spell-checking -isystem /home/andy/downloads/zig/build/lib/zig/include -isystem /home/andy/downloads/zig/build/lib/zig/libc/include/x86_64-windows-gnu -isystem /home/andy/downloads/zig/build/lib/zig/libc/include/generic-mingw -isystem /home/andy/downloads/zig/build/lib/zig/libc/include/x86_64-windows-any -isystem /home/andy/downloads/zig/build/lib/zig/libc/include/any-windows-any -target x86_64-unknown-windows-gnu -Wno-pragma-pack -g -D_DEBUG -fstack-protector-strong --param ssp-buffer-size=4 -fno-omit-frame-pointer -o zig-cache/tmp/RYvsWTfvvK2C-hello.obj -c hello.c
/home/andy/downloads/zig/build/zig cc -MD -MV -MF /home/andy/.local/share/zig/stage1/tmp/HjzIZ8o3Jv1I-crtexe.obj.d -nostdinc -fno-spell-checking -isystem /home/andy/downloads/zig/build/lib/zig/include -target 

andrewrk

; ModuleID = 'c'
source_filename = "c"
target datalayout = "e-m:e-p:32:32-i64:64-n32:64-S128"
target triple = "wasm32-unknown-unknown-musl"

%"[]u8.0" = type { i8*, i32 }
%builtin.StackTrace.1 = type { i32, %"[]usize.2" }
%"[]usize.2" = type { i32*, i32 }
%"std.math.frexp.frexp_result(f64)" = type { double, i32 }
%std.math.fma.dd = type { double, double }

andrewrk

export fn entry() void {
    const static = Foo{
        .x = 9,
        .bar = Bar{ .y = 10 },
    };
    const runtime = foo(true);
}

fn foo(c: bool) Foo {
    return Foo{

andrewrk

//
// errno.h
//
//      Copyright (c) Microsoft Corporation. All rights reserved.
//
// System error numbers for use with errno and errno_t.
//
#pragma once
#ifndef _INC_ERRNO // include guard for 3rd party interop
#define _INC_ERRNO