From 02b615c8704aeda9a94cf5457c9c78de847c911a Mon Sep 17 00:00:00 2001 From: Richard Qin Date: Sun, 1 Nov 2026 02:12:34 +0800 Subject: Move support code into CoreLib --- rcc/lib/CMakeLists.txt | 7 ---- rcc/lib/Support/Errno.cc | 79 ----------------------------------- rcc/lib/Support/MathExtras.cc | 97 ------------------------------------------- 3 files changed, 183 deletions(-) delete mode 100644 rcc/lib/CMakeLists.txt delete mode 100644 rcc/lib/Support/Errno.cc delete mode 100644 rcc/lib/Support/MathExtras.cc (limited to 'rcc/lib') diff --git a/rcc/lib/CMakeLists.txt b/rcc/lib/CMakeLists.txt deleted file mode 100644 index 6ab18c4..0000000 --- a/rcc/lib/CMakeLists.txt +++ /dev/null @@ -1,7 +0,0 @@ -# SPDX-License-Identifier: GPL-3.0-or-later - -add_rcc_library(RCCSupport - STATIC - Support/Errno.cc - Support/MathExtras.cc -) diff --git a/rcc/lib/Support/Errno.cc b/rcc/lib/Support/Errno.cc deleted file mode 100644 index f0161a6..0000000 --- a/rcc/lib/Support/Errno.cc +++ /dev/null @@ -1,79 +0,0 @@ -/* - RCC-Project - - Copyright (C) 2026 Richard Qin - - This file is part of RCC-Project. - - RCC-Project is free software; you can redistribute it and/or modify it under - the terms of the GNU General Public License as published by the Free - Software Foundation; either version 3 of the License, or (at your option) any - later version. - - RCC-Project is distributed in the hope that it will be useful, but WITHOUT ANY - WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR - A PARTICULAR PURPOSE. See the GNU General Public License for more details. - - You should have received a copy of the GNU General Public License along with - RCC-Project; see the file COPYING. If not see - . -*/ - -// This implementation is based on llvm/lib/Support/Errno.cpp. - -#include "rcc/Support/Errno.h" -#include "rcc/Config/config.h" - -#include -#include - -namespace rcc -{ -namespace sys -{ - -std::string -StrError () -{ - return StrError (errno); -} - -std::string -StrError (int errnum) -{ - std::string str; - if (errnum == 0) - { - return str; - } - -#if defined(HAVE_STRERROR_R) || HAVE_DECL_STRERROR_S - const int maxErrStrLen = 2000; - char buffer[maxErrStrLen]; - buffer[0] = '\0'; -#endif - -#ifdef HAVE_STRERROR_R - // strerror_r is thread-safe. -#if defined(__GLIBC__) && defined(_GNU_SOURCE) - // glibc defines its own incompatible version of strerror_r which may not - // use the buffer supplied. - str = strerror_r (errnum, buffer, maxErrStrLen - 1); -#else - strerror_r (errnum, buffer, maxErrStrLen - 1); - str = buffer; -#endif -#elif HAVE_DECL_STRERROR_S - // Windows Secure API. - strerror_s (buffer, maxErrStrLen - 1, errnum); - str = buffer; -#else - // Copy the thread-unsafe result of strerror into the buffer as fast as - // possible to minimize the impact of collisions in multiple threads. - str = strerror (errnum); -#endif - return str; -} - -} // namespace sys -} // namespace rcc diff --git a/rcc/lib/Support/MathExtras.cc b/rcc/lib/Support/MathExtras.cc deleted file mode 100644 index f0db3a4..0000000 --- a/rcc/lib/Support/MathExtras.cc +++ /dev/null @@ -1,97 +0,0 @@ -/* - RCC-Project - - Copyright (C) 2026 Richard Qin - - This file is part of RCC-Project. - - RCC-Project is free software; you can redistribute it and/or modify it under - the terms of the GNU General Public License as published by the Free - Software Foundation; either version 3 of the License, or (at your option) any - later version. - - RCC-Project is distributed in the hope that it will be useful, but WITHOUT ANY - WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR - A PARTICULAR PURPOSE. See the GNU General Public License for more details. - - You should have received a copy of the GNU General Public License along with - RCC-Project; see the file COPYING. If not see - . -*/ - -//===-- MathExtras.cpp - Implement the MathExtras header --------------===// -// -// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. -// See https://llvm.org/LICENSE.txt for license information. -// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception -// -//===----------------------------------------------------------------------===// -// -// This file implements the MathExtras.h header -// -//===----------------------------------------------------------------------===// - -#include "rcc/Support/MathExtras.h" - -#ifdef _MSC_VER -#include -#else -#include -#endif - -namespace rcc -{ - -#if defined(_MSC_VER) -// Visual Studio defines the HUGE_VAL class of macros using purposeful -// constant arithmetic overflow, which it then warns on when encountered. -const float huge_valf = std::numeric_limits::infinity (); -#else -const float huge_valf = HUGE_VALF; -#endif - -/// Returns the number of digits in the given integer. -int -NumDigitsBase10 (uint64_t X) -{ - static constexpr struct ConstexprData - { - uint8_t AtLeast[65] = {}; - uint64_t Boundaries[20] = {}; - static constexpr int - NumDigitsConstexpr (uint64_t N) - { - int res = 1; - while (N >= 10) - { - res++; - N /= 10; - } - return res; - } - constexpr ConstexprData () - { - uint64_t Val = ~0ull; - for (uint64_t i = 0; i <= 64; i++) - { - uint64_t Digits = NumDigitsConstexpr (Val) - 1; - AtLeast[i] = Digits; - Val >>= 1; - } - // Special case because X=0 should return 1 and not 0 - Boundaries[0] = 0; - Val = 10; - for (uint64_t i = 1; i < 20; i++) - { - Boundaries[i] = Val; - Val *= 10; - } - } - } Data; - - uint64_t Base2 = X ? std::countl_zero (X) : 64; - uint64_t Digits = Data.AtLeast[Base2]; - return Digits + (X >= Data.Boundaries[Digits]); -} - -} // namespace rcc -- cgit v1.2.3