text: /*
   * Copyright (c) 2015 Andrew Kelley
   *
   * This file is part of zig, which is MIT licensed.
   * See http://opensource.org/licenses/MIT
   */
  
  #ifndef ZIG_OS_HPP
  #define ZIG_OS_HPP
  
  #include "list.hpp"
  #include "buffer.hpp"
  #include "error.hpp"
  #include "zig_llvm.h"
  #include "windows_sdk.h"
  
  #include <stdio.h>
  #include <inttypes.h>
  
  #if defined(__APPLE__)
  #define ZIG_OS_DARWIN
  #elif defined(_WIN32)
  #define ZIG_OS_WINDOWS
  #elif defined(__linux__)
  #define ZIG_OS_LINUX
  #elif defined(__FreeBSD__)
  #define ZIG_OS_FREEBSD
  #elif defined(__NetBSD__)
  #define ZIG_OS_NETBSD
  #elif defined(__DragonFly__)
  #define ZIG_OS_DRAGONFLY
  #elif defined(__OpenBSD__)
  #define ZIG_OS_OPENBSD
  #elif defined(__HAIKU__)
  #define ZIG_OS_HAIKU
  #else
  #define ZIG_OS_UNKNOWN
  #endif
  
  #if defined(__x86_64__)
  #define ZIG_ARCH_X86_64
  #elif defined(__aarch64__)
  #define ZIG_ARCH_ARM64
  #elif defined(__ARM_EABI__)
  #define ZIG_ARCH_ARM
  #else
  #define ZIG_ARCH_UNKNOWN
  #endif
  
  #if defined(ZIG_OS_WINDOWS)
  #define ZIG_PRI_usize "Iu"
  #define ZIG_PRI_i64 "I64d"
  #define ZIG_PRI_u64 "I64u"
  #define ZIG_PRI_llu "I64u"
  #define ZIG_PRI_x64 "I64x"
  #define OS_SEP "\\"
  #define ZIG_OS_SEP_CHAR '\\'
  #else
  #define ZIG_PRI_usize "zu"
  #define ZIG_PRI_i64 PRId64
  #define ZIG_PRI_u64 PRIu64
  #define ZIG_PRI_llu "llu"
  #define ZIG_PRI_x64 PRIx64
  #define OS_SEP "/"
  #define ZIG_OS_SEP_CHAR '/'
  #endif
  
  enum TermColor {
      TermColorRed,
      TermColorGreen,
      TermColorCyan,
      TermColorWhite,
      TermColorBold,
      TermColorReset,
  };
  
  struct OsTimeStamp {
      int64_t sec;
      int64_t nsec;
  };
  
  int os_init(void);
  
  void os_path_dirname(Buf *full_path, Buf *out_dirname);
  void os_path_split(Buf *full_path, Buf *out_dirname, Buf *out_basename);
  void os_path_extname(Buf *full_path, Buf *out_basename, Buf *out_extname);
  void os_path_join(Buf *dirname, Buf *basename, Buf *out_full_path);
  Buf os_path_resolve(Buf **paths_ptr, size_t paths_len);
  bool os_path_is_absolute(Buf *path);
  
  Error ATTRIBUTE_MUST_USE os_make_path(Buf *path);
  Error ATTRIBUTE_MUST_USE os_make_dir(Buf *path);
  
  Error ATTRIBUTE_MUST_USE os_write_file(Buf *full_path, Buf *contents);
  Error ATTRIBUTE_MUST_USE os_copy_file(Buf *src_path, Buf *dest_path);
  
  Error ATTRIBUTE_MUST_USE os_fetch_file(FILE *file, Buf *out_contents);
  Error ATTRIBUTE_MUST_USE os_fetch_file_path(Buf *full_path, Buf *out_contents);
  
  Error ATTRIBUTE_MUST_USE os_get_cwd(Buf *out_cwd);
  
  bool os_stderr_tty(void);
  void os_stderr_set_color(TermColor color);
  
  Error os_rename(Buf *src_path, Buf *dest_path);
  OsTimeStamp os_timestamp_monotonic(void);
  
  bool os_is_sep(uint8_t c);
  
  const size_t PATH_MAX_WIDE = 32767;
  
  struct PathSpace {
      Array<wchar_t, PATH_MAX_WIDE> data;
      size_t len;
  };
  
  PathSpace slice_to_prefixed_file_w(Slice<uint8_t> path);
  #endif
  