[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [UNIKRAFT/LIB-MUSL PATCH] math: Provide constants to Unikraft
Hey Alex, which program has an issue with this? Shouldn't it define _XOPEN_SOURCE, _GNU_SOURCE, or _BSD_SOURCE in the sources before including <math.h>? I think we should not change this libc standard since it may break other programs. Thanks, Simon On 29.06.20, 21:05, "Alexander Jung" <a.jung@xxxxxxxxxxx> wrote: This patch modifes the math library to provide Mathematical constants such as Pi and e in the header <math.h>. Signed-off-by: Alexander Jung <a.jung@xxxxxxxxxxx> --- .../0008-math-Provide-constants-to-Unikraft.patch | 29 ++++++++++++++++++++++ 1 file changed, 29 insertions(+) create mode 100644 patches/0008-math-Provide-constants-to-Unikraft.patch diff --git a/patches/0008-math-Provide-constants-to-Unikraft.patch b/patches/0008-math-Provide-constants-to-Unikraft.patch new file mode 100644 index 0000000..ba7282e --- /dev/null +++ b/patches/0008-math-Provide-constants-to-Unikraft.patch @@ -0,0 +1,29 @@ +From 4f1964346aad513869a1543868847ade767130e2 Mon Sep 17 00:00:00 2001 +From: Alexander Jung <alexander.jung@xxxxxxxxx> +Date: Mon, 29 Jun 2020 20:51:34 +0200 +Subject: [PATCH] math: Provide constants to Unikraft + +This patch modifes the math library to provide Mathematical constants +such as Pi and e in the header <math.h>. + +Signed-off-by: Alexander Jung <alexander.jung@xxxxxxxxx> +--- + include/math.h | 2 +- + 1 file changed, 1 insertion(+), 1 deletion(-) + +diff --git a/include/math.h b/include/math.h +index 6ac91da..d95e06d 100644 +--- a/include/math.h ++++ b/include/math.h +@@ -354,7 +354,7 @@ long double truncl(long double); + #define MAXFLOAT 3.40282346638528859812e+38F + #endif + +-#if defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE) || defined(_BSD_SOURCE) ++#if defined(__Unikraft__) + #define M_E 2.7182818284590452354 /* e */ + #define M_LOG2E 1.4426950408889634074 /* log_2 e */ + #define M_LOG10E 0.43429448190325182765 /* log_10 e */ +-- +2.20.1 + -- 2.11.0
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