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