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path: root/clang/lib/Frontend/InitPreprocessor.cpp
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Diffstat (limited to 'clang/lib/Frontend/InitPreprocessor.cpp')
-rw-r--r--clang/lib/Frontend/InitPreprocessor.cpp39
1 files changed, 4 insertions, 35 deletions
diff --git a/clang/lib/Frontend/InitPreprocessor.cpp b/clang/lib/Frontend/InitPreprocessor.cpp
index b899fb9..baad6317 100644
--- a/clang/lib/Frontend/InitPreprocessor.cpp
+++ b/clang/lib/Frontend/InitPreprocessor.cpp
@@ -459,43 +459,12 @@ static void InitializeStandardPredefinedMacros(const TargetInfo &TI,
// value is, are implementation-defined.
// (Removed in C++20.)
if (!LangOpts.CPlusPlus) {
- if (LangOpts.C2y)
- Builder.defineMacro("__STDC_VERSION__", "202400L");
- else if (LangOpts.C23)
- Builder.defineMacro("__STDC_VERSION__", "202311L");
- else if (LangOpts.C17)
- Builder.defineMacro("__STDC_VERSION__", "201710L");
- else if (LangOpts.C11)
- Builder.defineMacro("__STDC_VERSION__", "201112L");
- else if (LangOpts.C99)
- Builder.defineMacro("__STDC_VERSION__", "199901L");
- else if (!LangOpts.GNUMode && LangOpts.Digraphs)
- Builder.defineMacro("__STDC_VERSION__", "199409L");
+ if (std::optional<uint32_t> Lang = LangOpts.getCLangStd())
+ Builder.defineMacro("__STDC_VERSION__", Twine(*Lang) + "L");
} else {
// -- __cplusplus
- if (LangOpts.CPlusPlus26)
- // FIXME: Use correct value for C++26.
- Builder.defineMacro("__cplusplus", "202400L");
- else if (LangOpts.CPlusPlus23)
- Builder.defineMacro("__cplusplus", "202302L");
- // [C++20] The integer literal 202002L.
- else if (LangOpts.CPlusPlus20)
- Builder.defineMacro("__cplusplus", "202002L");
- // [C++17] The integer literal 201703L.
- else if (LangOpts.CPlusPlus17)
- Builder.defineMacro("__cplusplus", "201703L");
- // [C++14] The name __cplusplus is defined to the value 201402L when
- // compiling a C++ translation unit.
- else if (LangOpts.CPlusPlus14)
- Builder.defineMacro("__cplusplus", "201402L");
- // [C++11] The name __cplusplus is defined to the value 201103L when
- // compiling a C++ translation unit.
- else if (LangOpts.CPlusPlus11)
- Builder.defineMacro("__cplusplus", "201103L");
- // [C++03] The name __cplusplus is defined to the value 199711L when
- // compiling a C++ translation unit.
- else
- Builder.defineMacro("__cplusplus", "199711L");
+ Builder.defineMacro("__cplusplus",
+ Twine(*LangOpts.getCPlusPlusLangStd()) + "L");
// -- __STDCPP_DEFAULT_NEW_ALIGNMENT__
// [C++17] An integer literal of type std::size_t whose value is the