From b19ad9cda58288d727861bdd0a9d2a7cedc7c1a6 Mon Sep 17 00:00:00 2001 From: Victor Chernyakin Date: Fri, 11 Jul 2025 11:35:50 -0700 Subject: [PATCH] [clang-tidy] Teach `readability-uppercase-literal-suffix` about C++23 and C23 suffixes --- .../UppercaseLiteralSuffixCheck.cpp | 13 +- clang-tools-extra/docs/ReleaseNotes.rst | 4 + .../uppercase-literal-suffix-c23.c | 162 ++++++++++++ ...literal-suffix-extended-floating-point.cpp | 248 ++++++++++++++++++ .../uppercase-literal-suffix-float16.cpp | 51 ---- .../uppercase-literal-suffix-integer.cpp | 86 +++++- 6 files changed, 506 insertions(+), 58 deletions(-) create mode 100644 clang-tools-extra/test/clang-tidy/checkers/readability/uppercase-literal-suffix-c23.c create mode 100644 clang-tools-extra/test/clang-tidy/checkers/readability/uppercase-literal-suffix-extended-floating-point.cpp delete mode 100644 clang-tools-extra/test/clang-tidy/checkers/readability/uppercase-literal-suffix-float16.cpp diff --git a/clang-tools-extra/clang-tidy/readability/UppercaseLiteralSuffixCheck.cpp b/clang-tools-extra/clang-tidy/readability/UppercaseLiteralSuffixCheck.cpp index 678aa8dad48a7..dd43ee200f4c0 100644 --- a/clang-tools-extra/clang-tidy/readability/UppercaseLiteralSuffixCheck.cpp +++ b/clang-tools-extra/clang-tidy/readability/UppercaseLiteralSuffixCheck.cpp @@ -25,10 +25,11 @@ struct IntegerLiteralCheck { static constexpr llvm::StringLiteral Name = llvm::StringLiteral("integer"); // What should be skipped before looking for the Suffixes? (Nothing here.) static constexpr llvm::StringLiteral SkipFirst = llvm::StringLiteral(""); - // Suffix can only consist of 'u' and 'l' chars, and can be a complex number - // ('i', 'j'). In MS compatibility mode, suffixes like i32 are supported. + // Suffix can only consist of 'u', 'l', and 'z' chars, can be a bit-precise + // integer (wb), and can be a complex number ('i', 'j'). In MS compatibility + // mode, suffixes like i32 are supported. static constexpr llvm::StringLiteral Suffixes = - llvm::StringLiteral("uUlLiIjJ"); + llvm::StringLiteral("uUlLzZwWbBiIjJ"); }; constexpr llvm::StringLiteral IntegerLiteralCheck::Name; constexpr llvm::StringLiteral IntegerLiteralCheck::SkipFirst; @@ -45,10 +46,10 @@ struct FloatingLiteralCheck { // Since the exponent ('p'/'P') is mandatory for hexadecimal floating-point // literals, we first skip everything before the exponent. static constexpr llvm::StringLiteral SkipFirst = llvm::StringLiteral("pP"); - // Suffix can only consist of 'f', 'l', "f16", 'h', 'q' chars, - // and can be a complex number ('i', 'j'). + // Suffix can only consist of 'f', 'l', "f16", "bf16", "df", "dd", "dl", + // 'h', 'q' chars, and can be a complex number ('i', 'j'). static constexpr llvm::StringLiteral Suffixes = - llvm::StringLiteral("fFlLhHqQiIjJ"); + llvm::StringLiteral("fFlLbBdDhHqQiIjJ"); }; constexpr llvm::StringLiteral FloatingLiteralCheck::Name; constexpr llvm::StringLiteral FloatingLiteralCheck::SkipFirst; diff --git a/clang-tools-extra/docs/ReleaseNotes.rst b/clang-tools-extra/docs/ReleaseNotes.rst index ad869265a2db5..119c030b43852 100644 --- a/clang-tools-extra/docs/ReleaseNotes.rst +++ b/clang-tools-extra/docs/ReleaseNotes.rst @@ -354,6 +354,10 @@ Changes in existing checks ` check by fixing some false positives involving smart pointers to arrays. +- Improved :doc:`readability-uppercase-literal-suffix + ` check to recognize + literal suffixes added in C++23 and C23. + Removed checks ^^^^^^^^^^^^^^ diff --git a/clang-tools-extra/test/clang-tidy/checkers/readability/uppercase-literal-suffix-c23.c b/clang-tools-extra/test/clang-tidy/checkers/readability/uppercase-literal-suffix-c23.c new file mode 100644 index 0000000000000..75727fc69e68c --- /dev/null +++ b/clang-tools-extra/test/clang-tidy/checkers/readability/uppercase-literal-suffix-c23.c @@ -0,0 +1,162 @@ +// TODO: When Clang adds support for decimal floating point types, enable these tests by: +// 1. Removing all the #if 0 + #endif guards. +// 2. Removing all occurrences of the string "DISABLED-" in this file. +// 3. Deleting this message. + +// RUN: %check_clang_tidy %s readability-uppercase-literal-suffix %t -- -- -std=c23 +// RUN: grep -Ev "// *[A-Z-]+:" %s > %t.c +// RUN: clang-tidy %t.c -checks='-*,readability-uppercase-literal-suffix' -fix -- -std=c23 +// RUN: clang-tidy %t.c -checks='-*,readability-uppercase-literal-suffix' -warnings-as-errors='-*,readability-uppercase-literal-suffix' -- -std=c23 + +void bit_precise_literal_suffix() { + // _BitInt() + + static constexpr auto v1 = 1wb; + // CHECK-MESSAGES: :[[@LINE-1]]:30: warning: integer literal has suffix 'wb', which is not uppercase + // CHECK-MESSAGES-NEXT: static constexpr auto v1 = 1wb; + // CHECK-MESSAGES-NEXT: ^~~ + // CHECK-MESSAGES-NEXT: WB{{$}} + // CHECK-FIXES: static constexpr auto v1 = 1WB; + static_assert(v1 == 1WB); + + static constexpr auto v2 = 1WB; // OK. + static_assert(v2 == 1WB); + + // _BitInt() Unsigned + + static constexpr auto v3 = 1wbu; + // CHECK-MESSAGES: :[[@LINE-1]]:30: warning: integer literal has suffix 'wbu', which is not uppercase + // CHECK-MESSAGES-NEXT: static constexpr auto v3 = 1wbu; + // CHECK-MESSAGES-NEXT: ^~~~ + // CHECK-MESSAGES-NEXT: WBU{{$}} + // CHECK-FIXES: static constexpr auto v3 = 1WBU; + static_assert(v3 == 1WBU); + + static constexpr auto v4 = 1WBu; + // CHECK-MESSAGES: :[[@LINE-1]]:30: warning: integer literal has suffix 'WBu', which is not uppercase + // CHECK-MESSAGES-NEXT: static constexpr auto v4 = 1WBu; + // CHECK-MESSAGES-NEXT: ^~~~ + // CHECK-MESSAGES-NEXT: WBU{{$}} + // CHECK-FIXES: static constexpr auto v4 = 1WBU; + static_assert(v4 == 1WBU); + + static constexpr auto v5 = 1wbU; + // CHECK-MESSAGES: :[[@LINE-1]]:30: warning: integer literal has suffix 'wbU', which is not uppercase + // CHECK-MESSAGES-NEXT: static constexpr auto v5 = 1wbU; + // CHECK-MESSAGES-NEXT: ^~~~ + // CHECK-MESSAGES-NEXT: WBU{{$}} + // CHECK-FIXES: static constexpr auto v5 = 1WBU; + static_assert(v5 == 1WBU); + + static constexpr auto v6 = 1WBU; // OK. + static_assert(v6 == 1WBU); + + // Unsigned _BitInt() + + static constexpr auto v7 = 1uwb; + // CHECK-MESSAGES: :[[@LINE-1]]:30: warning: integer literal has suffix 'uwb', which is not uppercase + // CHECK-MESSAGES-NEXT: static constexpr auto v7 = 1uwb; + // CHECK-MESSAGES-NEXT: ^~~~ + // CHECK-MESSAGES-NEXT: UWB{{$}} + // CHECK-FIXES: static constexpr auto v7 = 1UWB; + static_assert(v7 == 1UWB); + + static constexpr auto v8 = 1uWB; + // CHECK-MESSAGES: :[[@LINE-1]]:30: warning: integer literal has suffix 'uWB', which is not uppercase + // CHECK-MESSAGES-NEXT: static constexpr auto v8 = 1uWB; + // CHECK-MESSAGES-NEXT: ^~~~ + // CHECK-MESSAGES-NEXT: UWB{{$}} + // CHECK-FIXES: static constexpr auto v8 = 1UWB; + static_assert(v8 == 1UWB); + + static constexpr auto v9 = 1Uwb; + // CHECK-MESSAGES: :[[@LINE-1]]:30: warning: integer literal has suffix 'Uwb', which is not uppercase + // CHECK-MESSAGES-NEXT: static constexpr auto v9 = 1Uwb; + // CHECK-MESSAGES-NEXT: ^~~~ + // CHECK-MESSAGES-NEXT: UWB{{$}} + // CHECK-FIXES: static constexpr auto v9 = 1UWB; + static_assert(v9 == 1UWB); + + static constexpr auto v10 = 1UWB; // OK. + static_assert(v10 == 1UWB); +} + +void decimal_floating_point_suffix() { + // _Decimal32 + +#if 0 + static constexpr auto v1 = 1.df; + // DISABLED-CHECK-MESSAGES: :[[@LINE-1]]:30: warning: floating point literal has suffix 'df', which is not uppercase + // DISABLED-CHECK-MESSAGES-NEXT: static constexpr auto v1 = 1.df; + // DISABLED-CHECK-MESSAGES-NEXT: ^ ~ + // DISABLED-CHECK-MESSAGES-NEXT: DF{{$}} + // DISABLED-CHECK-FIXES: static constexpr auto v1 = 1.DF; + static_assert(v1 == 1.DF); + + static constexpr auto v2 = 1.e0df; + // DISABLED-CHECK-MESSAGES: :[[@LINE-1]]:30: warning: floating point literal has suffix 'df', which is not uppercase + // DISABLED-CHECK-MESSAGES-NEXT: static constexpr auto v2 = 1.e0df; + // DISABLED-CHECK-MESSAGES-NEXT: ^ ~ + // DISABLED-CHECK-MESSAGES-NEXT: DF{{$}} + // DISABLED-CHECK-FIXES: static constexpr auto v2 = 1.e0DF; + static_assert(v2 == 1.DF); + + static constexpr auto v3 = 1.DF; // OK. + static_assert(v3 == 1.DF); + + static constexpr auto v4 = 1.e0DF; // OK. + static_assert(v4 == 1.DF); +#endif + + // _Decimal64 + +#if 0 + static constexpr auto v5 = 1.dd; + // DISABLED-CHECK-MESSAGES: :[[@LINE-1]]:30: warning: floating point literal has suffix 'dd', which is not uppercase + // DISABLED-CHECK-MESSAGES-NEXT: static constexpr auto v5 = 1.dd; + // DISABLED-CHECK-MESSAGES-NEXT: ^ ~ + // DISABLED-CHECK-MESSAGES-NEXT: DD{{$}} + // DISABLED-CHECK-FIXES: static constexpr auto v5 = 1.DD; + static_assert(v5 == 1.DD); + + static constexpr auto v6 = 1.e0dd; + // DISABLED-CHECK-MESSAGES: :[[@LINE-1]]:30: warning: floating point literal has suffix 'dd', which is not uppercase + // DISABLED-CHECK-MESSAGES-NEXT: static constexpr auto v6 = 1.e0dd; + // DISABLED-CHECK-MESSAGES-NEXT: ^ ~ + // DISABLED-CHECK-MESSAGES-NEXT: DD{{$}} + // DISABLED-CHECK-FIXES: static constexpr auto v6 = 1.e0DD; + static_assert(v6 == 1.DD); + + static constexpr auto v7 = 1.DD; // OK. + static_assert(v7 == 1.DD); + + static constexpr auto v8 = 1.e0DD; // OK. + static_assert(v8 == 1.DD); +#endif + + // _Decimal128 + +#if 0 + static constexpr auto v9 = 1.dl; + // DISABLED-CHECK-MESSAGES: :[[@LINE-1]]:30: warning: floating point literal has suffix 'dl', which is not uppercase + // DISABLED-CHECK-MESSAGES-NEXT: static constexpr auto v9 = 1.dl; + // DISABLED-CHECK-MESSAGES-NEXT: ^ ~ + // DISABLED-CHECK-MESSAGES-NEXT: DL{{$}} + // DISABLED-CHECK-FIXES: static constexpr auto v9 = 1.DL; + static_assert(v9 == 1.DL); + + static constexpr auto v10 = 1.e0dl; + // DISABLED-CHECK-MESSAGES: :[[@LINE-1]]:31: warning: floating point literal has suffix 'dl', which is not uppercase + // DISABLED-CHECK-MESSAGES-NEXT: static constexpr auto v10 = 1.e0dl; + // DISABLED-CHECK-MESSAGES-NEXT: ^ ~ + // DISABLED-CHECK-MESSAGES-NEXT: DL{{$}} + // DISABLED-CHECK-FIXES: static constexpr auto v10 = 1.e0DL; + static_assert(v10 == 1.DL); + + static constexpr auto v11 = 1.DL; // OK. + static_assert(v11 == 1.DL); + + static constexpr auto v12 = 1.e0DL; // OK. + static_assert(v12 == 1.DL); +#endif +} diff --git a/clang-tools-extra/test/clang-tidy/checkers/readability/uppercase-literal-suffix-extended-floating-point.cpp b/clang-tools-extra/test/clang-tidy/checkers/readability/uppercase-literal-suffix-extended-floating-point.cpp new file mode 100644 index 0000000000000..abe23e3363766 --- /dev/null +++ b/clang-tools-extra/test/clang-tidy/checkers/readability/uppercase-literal-suffix-extended-floating-point.cpp @@ -0,0 +1,248 @@ +// TODO: When Clang adds support for C++23 floating-point types, enable these tests by: +// 1. Removing all the #if 0 + #endif guards. +// 2. Removing all occurrences of the string "DISABLED-" in this file. +// 3. Deleting this message. +// These suffixes may be relevant to C too: https://github.com/llvm/llvm-project/issues/97335 + +// RUN: %check_clang_tidy -std=c++23 %s readability-uppercase-literal-suffix %t -- -- -target aarch64-linux-gnu -I %clang_tidy_headers + +#include "integral_constant.h" +#if 0 +#include +#endif + +void normal_literals() { + // std::bfloat16_t + +#if 0 + static constexpr auto v1 = 1.bf16; + // DISABLED-CHECK-MESSAGES: :[[@LINE-1]]:30: warning: floating point literal has suffix 'bf16', which is not uppercase + // DISABLED-CHECK-MESSAGES-NEXT: static constexpr auto v1 = 1.bf16; + // DISABLED-CHECK-MESSAGES-NEXT: ^ ~ + // DISABLED-CHECK-MESSAGES-NEXT: BF16{{$}} + // DISABLED-CHECK-FIXES: static constexpr auto v1 = 1.BF16; + static_assert(is_same::value, ""); + static_assert(v1 == 1.BF16, ""); + + static constexpr auto v2 = 1.e0bf16; + // DISABLED-CHECK-MESSAGES: :[[@LINE-1]]:30: warning: floating point literal has suffix 'bf16', which is not uppercase + // DISABLED-CHECK-MESSAGES-NEXT: static constexpr auto v2 = 1.e0bf16; + // DISABLED-CHECK-MESSAGES-NEXT: ^ ~ + // DISABLED-CHECK-MESSAGES-NEXT: BF16{{$}} + // DISABLED-CHECK-FIXES: static constexpr auto v2 = 1.e0BF16; + static_assert(is_same::value, ""); + static_assert(v2 == 1.BF16, ""); + + static constexpr auto v3 = 1.BF16; // OK. + static_assert(is_same::value, ""); + static_assert(v3 == 1.BF16, ""); + + static constexpr auto v4 = 1.e0BF16; // OK. + static_assert(is_same::value, ""); + static_assert(v4 == 1.BF16, ""); +#endif + + // _Float16/std::float16_t + + static constexpr auto v5 = 1.f16; + // CHECK-MESSAGES: :[[@LINE-1]]:30: warning: floating point literal has suffix 'f16', which is not uppercase + // CHECK-MESSAGES-NEXT: static constexpr auto v5 = 1.f16; + // CHECK-MESSAGES-NEXT: ^ ~ + // CHECK-MESSAGES-NEXT: F16{{$}} + // CHECK-FIXES: static constexpr auto v5 = 1.F16; + static_assert(is_same::value, ""); + static_assert(v5 == 1.F16, ""); + + static constexpr auto v6 = 1.e0f16; + // CHECK-MESSAGES: :[[@LINE-1]]:30: warning: floating point literal has suffix 'f16', which is not uppercase + // CHECK-MESSAGES-NEXT: static constexpr auto v6 = 1.e0f16; + // CHECK-MESSAGES-NEXT: ^ ~ + // CHECK-MESSAGES-NEXT: F16{{$}} + // CHECK-FIXES: static constexpr auto v6 = 1.e0F16; + static_assert(is_same::value, ""); + static_assert(v6 == 1.F16, ""); + + static constexpr auto v7 = 1.F16; // OK. + static_assert(is_same::value, ""); + static_assert(v7 == 1.F16, ""); + + static constexpr auto v8 = 1.e0F16; // OK. + static_assert(is_same::value, ""); + static_assert(v8 == 1.F16, ""); + + // std::float32_t + +#if 0 + static constexpr auto v9 = 1.f32; + // DISABLED-CHECK-MESSAGES: :[[@LINE-1]]:30: warning: floating point literal has suffix 'f32', which is not uppercase + // DISABLED-CHECK-MESSAGES-NEXT: static constexpr auto v9 = 1.f32; + // DISABLED-CHECK-MESSAGES-NEXT: ^ ~ + // DISABLED-CHECK-MESSAGES-NEXT: F32{{$}} + // DISABLED-CHECK-FIXES: static constexpr auto v9 = 1.F32; + static_assert(is_same::value, ""); + static_assert(v9 == 1.F32, ""); + + static constexpr auto v10 = 1.e0f32; + // DISABLED-CHECK-MESSAGES: :[[@LINE-1]]:31: warning: floating point literal has suffix 'f32', which is not uppercase + // DISABLED-CHECK-MESSAGES-NEXT: static constexpr auto v10 = 1.e0f32; + // DISABLED-CHECK-MESSAGES-NEXT: ^ ~ + // DISABLED-CHECK-MESSAGES-NEXT: F32{{$}} + // DISABLED-CHECK-FIXES: static constexpr auto v10 = 1.e0F32; + static_assert(is_same::value, ""); + static_assert(v10 == 1.F32, ""); + + static constexpr auto v11 = 1.F32; // OK. + static_assert(is_same::value, ""); + static_assert(v11 == 1.F32, ""); + + static constexpr auto v12 = 1.e0F32; // OK. + static_assert(is_same::value, ""); + static_assert(v12 == 1.F32, ""); +#endif + + // std::float64_t + +#if 0 + static constexpr auto v13 = 1.f64; + // DISABLED-CHECK-MESSAGES: :[[@LINE-1]]:31: warning: floating point literal has suffix 'f64', which is not uppercase + // DISABLED-CHECK-MESSAGES-NEXT: static constexpr auto v13 = 1.f64; + // DISABLED-CHECK-MESSAGES-NEXT: ^ ~ + // DISABLED-CHECK-MESSAGES-NEXT: F64{{$}} + // DISABLED-CHECK-FIXES: static constexpr auto v13 = 1.F64; + static_assert(is_same::value, ""); + static_assert(v13 == 1.F64, ""); + + static constexpr auto v14 = 1.e0f64; + // DISABLED-CHECK-MESSAGES: :[[@LINE-1]]:31: warning: floating point literal has suffix 'f64', which is not uppercase + // DISABLED-CHECK-MESSAGES-NEXT: static constexpr auto v14 = 1.e0f64; + // DISABLED-CHECK-MESSAGES-NEXT: ^ ~ + // DISABLED-CHECK-MESSAGES-NEXT: F64{{$}} + // DISABLED-CHECK-FIXES: static constexpr auto v14 = 1.e0F64; + static_assert(is_same::value, ""); + static_assert(v14 == 1.F64, ""); + + static constexpr auto v15 = 1.F64; // OK. + static_assert(is_same::value, ""); + static_assert(v15 == 1.F64, ""); + + static constexpr auto v16 = 1.e0F64; // OK. + static_assert(is_same::value, ""); + static_assert(v16 == 1.F64, ""); +#endif + + // std::float128_t + +#if 0 + static constexpr auto v17 = 1.f128; + // DISABLED-CHECK-MESSAGES: :[[@LINE-1]]:31: warning: floating point literal has suffix 'f128', which is not uppercase + // DISABLED-CHECK-MESSAGES-NEXT: static constexpr auto v17 = 1.f128; + // DISABLED-CHECK-MESSAGES-NEXT: ^ ~ + // DISABLED-CHECK-MESSAGES-NEXT: F128{{$}} + // DISABLED-CHECK-FIXES: static constexpr auto v17 = 1.F128; + static_assert(is_same::value, ""); + static_assert(v17 == 1.F128, ""); + + static constexpr auto v18 = 1.e0f128; + // DISABLED-CHECK-MESSAGES: :[[@LINE-1]]:31: warning: floating point literal has suffix 'f128', which is not uppercase + // DISABLED-CHECK-MESSAGES-NEXT: static constexpr auto v18 = 1.e0f128; + // DISABLED-CHECK-MESSAGES-NEXT: ^ ~ + // DISABLED-CHECK-MESSAGES-NEXT: F128{{$}} + // DISABLED-CHECK-FIXES: static constexpr auto v18 = 1.e0F128; + static_assert(is_same::value, ""); + static_assert(v18 == 1.F128, ""); + + static constexpr auto v19 = 1.F128; // OK. + static_assert(is_same::value, ""); + static_assert(v19 == 1.F128, ""); + + static constexpr auto v20 = 1.e0F128; // OK. + static_assert(is_same::value, ""); + static_assert(v20 == 1.F128, ""); +#endif +} + +void hexadecimal_literals() { + // std::bfloat16_t + +#if 0 + static constexpr auto v1 = 0xfp0bf16; + // DISABLED-CHECK-MESSAGES: :[[@LINE-1]]:30: warning: floating point literal has suffix 'bf16', which is not uppercase + // DISABLED-CHECK-MESSAGES-NEXT: static constexpr auto v1 = 0xfp0bf16; + // DISABLED-CHECK-MESSAGES-NEXT: ^ ~ + // DISABLED-CHECK-MESSAGES-NEXT: BF16{{$}} + // DISABLED-CHECK-FIXES: static constexpr auto v1 = 0xfp0BF16; + static_assert(is_same::value, ""); + static_assert(v1 == 0xfp0BF16, ""); + + static constexpr auto v2 = 0xfp0BF16; // OK. + static_assert(is_same::value, ""); + static_assert(v2 == 0xfp0BF16, ""); +#endif + + // _Float16/std::float16_t + + static constexpr auto v3 = 0xfp0f16; + // CHECK-MESSAGES: :[[@LINE-1]]:30: warning: floating point literal has suffix 'f16', which is not uppercase + // CHECK-MESSAGES-NEXT: static constexpr auto v3 = 0xfp0f16; + // CHECK-MESSAGES-NEXT: ^ ~ + // CHECK-MESSAGES-NEXT: F16{{$}} + // CHECK-FIXES: static constexpr auto v3 = 0xfp0F16; + static_assert(is_same::value, ""); + static_assert(v3 == 0xfp0F16, ""); + + static constexpr auto v4 = 0xfp0F16; // OK. + static_assert(is_same::value, ""); + static_assert(v4 == 0xfp0F16, ""); + + // std::float32_t + +#if 0 + static constexpr auto v5 = 0xfp0f32; + // DISABLED-CHECK-MESSAGES: :[[@LINE-1]]:30: warning: floating point literal has suffix 'f32', which is not uppercase + // DISABLED-CHECK-MESSAGES-NEXT: static constexpr auto v5 = 0xfp0f32; + // DISABLED-CHECK-MESSAGES-NEXT: ^ ~ + // DISABLED-CHECK-MESSAGES-NEXT: F32{{$}} + // DISABLED-CHECK-FIXES: static constexpr auto v5 = 0xfp0F32; + static_assert(is_same::value, ""); + static_assert(v5 == 0xfp0F32, ""); + + static constexpr auto v6 = 0xfp0F32; // OK. + static_assert(is_same::value, ""); + static_assert(v6 == 0xfp0F32, ""); +#endif + + // std::float64_t + +#if 0 + static constexpr auto v7 = 0xfp0f64; + // DISABLED-CHECK-MESSAGES: :[[@LINE-1]]:30: warning: floating point literal has suffix 'f64', which is not uppercase + // DISABLED-CHECK-MESSAGES-NEXT: static constexpr auto v7 = 0xfp0f64; + // DISABLED-CHECK-MESSAGES-NEXT: ^ ~ + // DISABLED-CHECK-MESSAGES-NEXT: F64{{$}} + // DISABLED-CHECK-FIXES: static constexpr auto v7 = 0xfp0F64; + static_assert(is_same::value, ""); + static_assert(v7 == 0xfp0F64, ""); + + static constexpr auto v8 = 0xfp0F64; // OK. + static_assert(is_same::value, ""); + static_assert(v8 == 0xfp0F64, ""); +#endif + + // std::float128_t + +#if 0 + static constexpr auto v9 = 0xfp0f128; + // DISABLED-CHECK-MESSAGES: :[[@LINE-1]]:30: warning: floating point literal has suffix 'f128', which is not uppercase + // DISABLED-CHECK-MESSAGES-NEXT: static constexpr auto v9 = 0xfp0f128; + // DISABLED-CHECK-MESSAGES-NEXT: ^ ~ + // DISABLED-CHECK-MESSAGES-NEXT: F128{{$}} + // DISABLED-CHECK-FIXES: static constexpr auto v9 = 0xfp0F128; + static_assert(is_same::value, ""); + static_assert(v9 == 0xfp0F128, ""); + + static constexpr auto v10 = 0xfp0F128; // OK. + static_assert(is_same::value, ""); + static_assert(v10 == 0xfp0F128, ""); +#endif + +} diff --git a/clang-tools-extra/test/clang-tidy/checkers/readability/uppercase-literal-suffix-float16.cpp b/clang-tools-extra/test/clang-tidy/checkers/readability/uppercase-literal-suffix-float16.cpp deleted file mode 100644 index 46d7bc1347d0d..0000000000000 --- a/clang-tools-extra/test/clang-tidy/checkers/readability/uppercase-literal-suffix-float16.cpp +++ /dev/null @@ -1,51 +0,0 @@ -// RUN: %check_clang_tidy %s readability-uppercase-literal-suffix %t -- -- -target aarch64-linux-gnu -I %clang_tidy_headers - -#include "integral_constant.h" - -void float16_normal_literals() { - // _Float16 - - static constexpr auto v14 = 1.f16; - // CHECK-MESSAGES: :[[@LINE-1]]:31: warning: floating point literal has suffix 'f16', which is not uppercase - // CHECK-MESSAGES-NEXT: static constexpr auto v14 = 1.f16; - // CHECK-MESSAGES-NEXT: ^ ~ - // CHECK-MESSAGES-NEXT: F16{{$}} - // CHECK-FIXES: static constexpr auto v14 = 1.F16; - static_assert(is_same::value, ""); - static_assert(v14 == 1.F16, ""); - - static constexpr auto v15 = 1.e0f16; - // CHECK-MESSAGES: :[[@LINE-1]]:31: warning: floating point literal has suffix 'f16', which is not uppercase - // CHECK-MESSAGES-NEXT: static constexpr auto v15 = 1.e0f16; - // CHECK-MESSAGES-NEXT: ^ ~ - // CHECK-MESSAGES-NEXT: F16{{$}} - // CHECK-FIXES: static constexpr auto v15 = 1.e0F16; - static_assert(is_same::value, ""); - static_assert(v15 == 1.F16, ""); - - static constexpr auto v16 = 1.F16; // OK. - static_assert(is_same::value, ""); - static_assert(v16 == 1.F16, ""); - - static constexpr auto v17 = 1.e0F16; // OK. - static_assert(is_same::value, ""); - static_assert(v17 == 1.F16, ""); -} - -void float16_hexadecimal_literals() { -// _Float16 - - static constexpr auto v13 = 0xfp0f16; - // CHECK-MESSAGES: :[[@LINE-1]]:31: warning: floating point literal has suffix 'f16', which is not uppercase - // CHECK-MESSAGES-NEXT: static constexpr auto v13 = 0xfp0f16; - // CHECK-MESSAGES-NEXT: ^ ~ - // CHECK-MESSAGES-NEXT: F16{{$}} - // CHECK-FIXES: static constexpr auto v13 = 0xfp0F16; - static_assert(is_same::value, ""); - static_assert(v13 == 0xfp0F16, ""); - - static constexpr auto v14 = 0xfp0F16; // OK. - static_assert(is_same::value, ""); - static_assert(v14 == 0xfp0F16, ""); - -} diff --git a/clang-tools-extra/test/clang-tidy/checkers/readability/uppercase-literal-suffix-integer.cpp b/clang-tools-extra/test/clang-tidy/checkers/readability/uppercase-literal-suffix-integer.cpp index 084d9f68e0b5e..29f85749e9d55 100644 --- a/clang-tools-extra/test/clang-tidy/checkers/readability/uppercase-literal-suffix-integer.cpp +++ b/clang-tools-extra/test/clang-tidy/checkers/readability/uppercase-literal-suffix-integer.cpp @@ -4,10 +4,11 @@ // RUN: clang-tidy %t.cpp -checks='-*,readability-uppercase-literal-suffix' -warnings-as-errors='-*,readability-uppercase-literal-suffix' -- -I %clang_tidy_headers #include "integral_constant.h" +#include void integer_suffix() { static constexpr auto v0 = __LINE__; // synthetic - static_assert(v0 == 9 || v0 == 5, ""); + static_assert(v0 == 10 || v0 == 6, ""); static constexpr auto v1 = __cplusplus; // synthetic, long @@ -225,6 +226,89 @@ void integer_complex_suffix() { static_assert(v28 == 1J, ""); } +// This is a C++23 feature, but Clang supports it in earlier language modes +// as an extension, so we test it unconditionally. +void size_t_suffix() { + // Signed + + static constexpr auto v29 = 1z; + // CHECK-MESSAGES: :[[@LINE-1]]:31: warning: integer literal has suffix 'z', which is not uppercase + // CHECK-MESSAGES-NEXT: static constexpr auto v29 = 1z; + // CHECK-MESSAGES-NEXT: ^~ + // CHECK-MESSAGES-NEXT: Z{{$}} + // CHECK-FIXES: static constexpr auto v29 = 1Z; + static_assert(v29 == 1Z, ""); + + static constexpr auto v30 = 1Z; // OK. + static_assert(v30 == 1Z, ""); + + // size_t Unsigned + + static constexpr auto v31 = 1zu; + // CHECK-MESSAGES: :[[@LINE-1]]:31: warning: integer literal has suffix 'zu', which is not uppercase + // CHECK-MESSAGES-NEXT: static constexpr auto v31 = 1zu; + // CHECK-MESSAGES-NEXT: ^~~ + // CHECK-MESSAGES-NEXT: ZU{{$}} + // CHECK-FIXES: static constexpr auto v31 = 1ZU; + static_assert(is_same::value, ""); + static_assert(v31 == 1ZU, ""); + + static constexpr auto v32 = 1Zu; + // CHECK-MESSAGES: :[[@LINE-1]]:31: warning: integer literal has suffix 'Zu', which is not uppercase + // CHECK-MESSAGES-NEXT: static constexpr auto v32 = 1Zu; + // CHECK-MESSAGES-NEXT: ^~~ + // CHECK-MESSAGES-NEXT: ZU{{$}} + // CHECK-FIXES: static constexpr auto v32 = 1ZU; + static_assert(is_same::value, ""); + static_assert(v32 == 1ZU, ""); + + static constexpr auto v33 = 1zU; + // CHECK-MESSAGES: :[[@LINE-1]]:31: warning: integer literal has suffix 'zU', which is not uppercase + // CHECK-MESSAGES-NEXT: static constexpr auto v33 = 1zU; + // CHECK-MESSAGES-NEXT: ^~~ + // CHECK-MESSAGES-NEXT: ZU{{$}} + // CHECK-FIXES: static constexpr auto v33 = 1ZU; + static_assert(is_same::value, ""); + static_assert(v33 == 1ZU, ""); + + static constexpr auto v34 = 1ZU; // OK. + static_assert(is_same::value, ""); + static_assert(v34 == 1ZU, ""); + + // Unsigned size_t + + static constexpr auto v35 = 1uz; + // CHECK-MESSAGES: :[[@LINE-1]]:31: warning: integer literal has suffix 'uz', which is not uppercase + // CHECK-MESSAGES-NEXT: static constexpr auto v35 = 1uz; + // CHECK-MESSAGES-NEXT: ^~~ + // CHECK-MESSAGES-NEXT: UZ{{$}} + // CHECK-FIXES: static constexpr auto v35 = 1UZ; + static_assert(is_same::value, ""); + static_assert(v35 == 1UZ); + + static constexpr auto v36 = 1uZ; + // CHECK-MESSAGES: :[[@LINE-1]]:31: warning: integer literal has suffix 'uZ', which is not uppercase + // CHECK-MESSAGES-NEXT: static constexpr auto v36 = 1uZ; + // CHECK-MESSAGES-NEXT: ^~~ + // CHECK-MESSAGES-NEXT: UZ{{$}} + // CHECK-FIXES: static constexpr auto v36 = 1UZ; + static_assert(is_same::value, ""); + static_assert(v36 == 1UZ); + + static constexpr auto v37 = 1Uz; + // CHECK-MESSAGES: :[[@LINE-1]]:31: warning: integer literal has suffix 'Uz', which is not uppercase + // CHECK-MESSAGES-NEXT: static constexpr auto v37 = 1Uz; + // CHECK-MESSAGES-NEXT: ^~~ + // CHECK-MESSAGES-NEXT: UZ{{$}} + // CHECK-FIXES: static constexpr auto v37 = 1UZ; + static_assert(is_same::value, ""); + static_assert(v37 == 1UZ); + + static constexpr auto v38 = 1UZ; // OK. + static_assert(is_same::value, ""); + static_assert(v38 == 1UZ); +} + void macros() { #define PASSTHROUGH(X) X static constexpr auto m0 = PASSTHROUGH(1u);