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 44