diff options
Diffstat (limited to 'arch/x86_64/src')
| -rw-r--r-- | arch/x86_64/src/memory/paging/page_table.cpp | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/x86_64/src/memory/paging/page_table.cpp b/arch/x86_64/src/memory/paging/page_table.cpp index ab7331a..02ababe 100644 --- a/arch/x86_64/src/memory/paging/page_table.cpp +++ b/arch/x86_64/src/memory/paging/page_table.cpp @@ -54,4 +54,12 @@ namespace teachos::arch::memory::paging } return std::nullopt; } + + auto operator--(page_table::level & level, int) -> page_table::level + { + exception_handling::assert(level != page_table::LEVEL1, + "[Page table] Attemptd to decrement enum to value outside of range"); + auto value = static_cast<std::underlying_type<page_table::level>::type>(level); + return static_cast<page_table::level>(--value); + } } // namespace teachos::arch::memory::paging |