travisstaloch

// Used with https://github.com/DeviaVir/zenbot
// I store this file at zenbot\scripts\genetic_backtester\summarize.js
// Example usage:
// node scripts\genetic_backtester\summarize.js --population_data simulations/popDataFolder --count 5 --prop endBalance --gen 1

const fs = require('fs'),
  KEY_POP_DATA = 'population_data',
  KEY_BT_GEN = 'backtester_generation',
  KEY_STRAT = 'strategy',
  KEY_FITNESS = 'fitness',

travisstaloch

#![feature(ptr_offset_from)]

type ParseResult<'a> = Option<&'a str>;

trait Peg<'a> {
  fn p(&self, s: &mut &'a str) -> ParseResult<'a>;
}

struct Wrap<T>(T);

travisstaloch

const std = @import("std");

const Tag = enum {
    A,
    B,
    C,
};
const Tagged = union(Tag) {
    A: bool,
    B: i32,

travisstaloch

const std = @import("std");

test "fields" {
    const U1s = packed struct {
        a: u1,
        b: u1,
        c: u1,
    };

    const x = U1s{ .a = 1, .b = 0, .c = 0 };

travisstaloch

// zig build-obj --emit asm --strip --release-small view_asm.zig && cat view_asm.s

const std = @import("std");

pub fn panic(msg: []const u8, stack_trace: ?*std.builtin.StackTrace) noreturn {
    while (true) {}
}

export nakedcc fn _start() noreturn {
    // code here will appear in _start section

travisstaloch

const std = @import("std");

const pi: f64 = 3.141592653589793;
const solar_mass: f64 = 4.0 * pi * pi;
const year: f64 = 365.24;
const n_bodies: usize = 5;

const Body = struct {
    x: @Vector(3, f64),
    v: @Vector(3, f64),

travisstaloch

// $ zig build-exe --release-fast spectralnorm.zig && time ./spectralnorm 5500


const std = @import("std");
const warn = std.debug.warn;

const V2f64 = @Vector(2, f64);

inline fn A(_i: usize, _j: usize) f64 {
    var i: f64 = @intToFloat(f64, _i);

travisstaloch

// The Computer Language Benchmarks Game
// https://salsa.debian.org/benchmarksgame-team/benchmarksgame/
//
// Contributed by Mark C. Lewis.
// Modified slightly by Chad Whipkey.
// Converted from Java to C++ and added SSE support by Branimir Maksimovic.
// Converted from C++ to C by Alexey Medvedchikov.
// Modified by Jeremy Zerfas.
// Converted to zig by Travis Staloch

travisstaloch

const std = @import("std");

pub fn RingBuffer(comptime T: type) type {
    return struct {
        data: []T,
        current: [*]T,
        count: usize,
        dtor: ?fn (T) void,

        const Self = @This();

travisstaloch

const std = @import("std");
const warn = std.debug.warn;

test "parse psf font file" {
    // https://github.com/monarrk/trOS/raw/master/src/vga/font.psf
    // const font_raw = @embedFile("font.psf");
    // https://github.com/powerline/fonts/blob/master/Terminus/PSF/ter-powerline-v16b.psf.gz
    const font_raw = @embedFile("ter-powerline-v16b.psf");

    const PSFHeader = extern struct {