mirror of
https://github.com/Atmosphere-NX/Atmosphere-libs.git
synced 2025-11-11 23:51:25 +01:00
15def4ef63
Because I was working on multiple things at once, this commit also:
- Adds wrappers for/linker flags to wrap CXX exceptions to make them
abort. This saves ~0x8000 of memory in every system module.
- Broadly replaces lines of the pattern if (cond) { return ResultX; }
with R_UNLESS(!cond, ResultX());.
- Reworks the R_TRY_CATCH macros (and the result macros in general).
77 lines
2.7 KiB
C++
77 lines
2.7 KiB
C++
/*
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* Copyright (c) 2018-2019 Atmosphère-NX
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#pragma once
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#include <switch.h>
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#include "../defines.hpp"
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#include <type_traits>
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namespace sts::util {
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/* Utilities for alignment to power of two. */
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template<typename T>
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constexpr inline T AlignUp(T value, size_t alignment) {
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using U = typename std::make_unsigned<T>::type;
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const U invmask = static_cast<U>(alignment - 1);
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return static_cast<T>((value + invmask) & ~invmask);
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}
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template<typename T>
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constexpr inline T AlignDown(T value, size_t alignment) {
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using U = typename std::make_unsigned<T>::type;
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const U invmask = static_cast<U>(alignment - 1);
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return static_cast<T>(value & ~invmask);
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}
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template<typename T>
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constexpr inline bool IsAligned(T value, size_t alignment) {
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using U = typename std::make_unsigned<T>::type;
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const U invmask = static_cast<U>(alignment - 1);
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return (value & invmask) == 0;
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}
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template<>
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constexpr inline void *AlignUp<void *>(void *value, size_t alignment) {
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return reinterpret_cast<void *>(AlignUp(reinterpret_cast<uintptr_t>(value), alignment));
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}
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template<>
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constexpr inline const void *AlignUp<const void *>(const void *value, size_t alignment) {
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return reinterpret_cast<const void *>(AlignUp(reinterpret_cast<uintptr_t>(value), alignment));
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}
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template<>
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constexpr inline void *AlignDown<void *>(void *value, size_t alignment) {
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return reinterpret_cast<void *>(AlignDown(reinterpret_cast<uintptr_t>(value), alignment));
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}
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template<>
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constexpr inline const void *AlignDown<const void *>(const void *value, size_t alignment) {
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return reinterpret_cast<void *>(AlignDown(reinterpret_cast<uintptr_t>(value), alignment));
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}
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template<>
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constexpr inline bool IsAligned<void *>(void *value, size_t alignment) {
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return IsAligned(reinterpret_cast<uintptr_t>(value), alignment);
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}
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template<>
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constexpr inline bool IsAligned<const void *>(const void *value, size_t alignment) {
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return IsAligned(reinterpret_cast<uintptr_t>(value), alignment);
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}
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} |