libc/src/__support/macros/properties/compiler.h

   1 //===-- Compile time compiler detection -------------------------*- C++ -*-===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8
   9 #ifndef LLVM_LIBC_SRC___SUPPORT_MACROS_PROPERTIES_COMPILER_H
  10 #define LLVM_LIBC_SRC___SUPPORT_MACROS_PROPERTIES_COMPILER_H
  11
  12 // Example usage of compiler version checks
  13 // #if defined(LIBC_COMPILER_CLANG_VER)
  14 // #  if LIBC_COMPILER_CLANG_VER < 1500
  15 // #    warning "Libc only supports Clang 15 and later"
  16 // #  endif
  17 // #elif defined(LIBC_COMPILER_GCC_VER)
  18 // #  if LIBC_COMPILER_GCC_VER < 1500
  19 // #    warning "Libc only supports GCC 15 and later"
  20 // #  endif
  21 // #elif defined(LIBC_COMPILER_MSC_VER)
  22 // #  if LIBC_COMPILER_MSC_VER < 1930
  23 // #    warning "Libc only supports Visual Studio 2022 RTW (17.0) and later"
  24 // #  endif
  25 // #endif
  26
  27 #if defined(__clang__)
  28 #define LIBC_COMPILER_IS_CLANG
  29 #define LIBC_COMPILER_CLANG_VER (__clang_major__ * 100 + __clang_minor__)
  30 #endif
  31
  32 #if defined(__GNUC__) && !defined(__clang__)
  33 #define LIBC_COMPILER_IS_GCC
  34 #define LIBC_COMPILER_GCC_VER (__GNUC__ * 100 + __GNUC_MINOR__)
  35 #endif
  36
  37 #if defined(_MSC_VER)
  38 #define LIBC_COMPILER_IS_MSC
  39 // https://learn.microsoft.com/en-us/cpp/preprocessor/predefined-macros
  40 #define LIBC_COMPILER_MSC_VER (_MSC_VER)
  41 #endif
  42
  43 #endif // LLVM_LIBC_SRC___SUPPORT_MACROS_PROPERTIES_COMPILER_H