From 92e172309cf6624487ef6b3a79aeeee5445276f9 Mon Sep 17 00:00:00 2001 From: Adhemerval Zanella Date: Mon, 8 Aug 2022 17:35:12 -0300 Subject: [PATCH] [clang][Headers] Only define FLT_EVAL_METHOD for C99 and later It was reported by glibc conform test [1]. [1] https://sourceware.org/git/?p=glibc.git;a=blob;f=conform/data/float.h-data;h=7b98fc03447b8918da4a0cf47d41fb3e17f4f791;hb=HEAD Reviewed By: MaskRay Differential Revision: https://reviews.llvm.org/D137267 --- clang/lib/Headers/float.h | 3 +++ 1 file changed, 3 insertions(+) diff --git a/clang/lib/Headers/float.h b/clang/lib/Headers/float.h index 5dace7a..0e73bca 100644 --- a/clang/lib/Headers/float.h +++ b/clang/lib/Headers/float.h @@ -86,7 +86,10 @@ /* Characteristics of floating point types, C99 5.2.4.2.2 */ +#if (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L) || \ + (defined(__cplusplus) && __cplusplus >= 201103L) #define FLT_EVAL_METHOD __FLT_EVAL_METHOD__ +#endif #define FLT_ROUNDS (__builtin_flt_rounds()) #define FLT_RADIX __FLT_RADIX__ -- 2.7.4