:github_url: https://github.com/nyx-org/gaia


.. _program_listing_file_lib_base.hpp:

Program Listing for File base.hpp
=================================

|exhale_lsh| :ref:`Return to documentation for file <file_lib_base.hpp>` (``lib/base.hpp``)

.. |exhale_lsh| unicode:: U+021B0 .. UPWARDS ARROW WITH TIP LEFTWARDS

.. code-block:: cpp

   /* SPDX-License-Identifier: BSD-2-Clause */
   
   #pragma once
   #include <frg/list.hpp>
   #include <stddef.h>
   #include <stdint.h>
   #include <utility>
   
   #define ARRAY_LENGTH(x) (sizeof(x) / sizeof((x)[0]))
   #define ALIGN_UP(x, align) (((x) + (align)-1) & ~((align)-1))
   #define ALIGN_DOWN(x, align) ((x) & ~((align)-1))
   #define DIV_CEIL(x, align) (((x) + (align)-1) / (align))
   
   #define MAX(X, Y) ((X) > (Y) ? (X) : (Y))
   
   #define KIB(x) ((uint64_t)x << 10)
   #define MIB(x) ((uint64_t)x << 20)
   #define GIB(x) ((uint64_t)x << 30)
   
   // should be moved elsewhere
   
   #ifdef __KERNEL__
   constexpr int toupper(int c) {
     if (c >= 'a' && c <= 'z') {
       c -= 0x20;
     }
     return c;
   }
   #endif
   
   namespace Gaia {
   
   template <typename T> static inline void volatile_write(T *address, T data) {
     *static_cast<volatile T *>(address) = data;
   }
   
   template <typename T> static inline T volatile_read(T *address) {
     return *static_cast<volatile T *>(address);
   }
   
   } // namespace Gaia
   
   #if !__has_include(<string.h>)
   #define memcpy __builtin_memcpy
   extern "C" {
   void *memset(void *d, int c, size_t n);
   size_t strlen(const char *s);
   }
   #endif