https://bugs.llvm.org/show_bug.cgi?id=40216
Bug ID: 40216
Summary: sqrt not considered constexpr
Product: clang
Version: 7.0
Hardware: PC
OS: Linux
Status: NEW
Severity: normal
Priority: P
Component: C++
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected], [email protected],
[email protected], [email protected],
[email protected]
The following program:
#include <cmath>
static constexpr double GoldenRatio = (1 + sqrt(5.0)) / 2;
Compiles fine on g++. Clang++ does not compile it:
test.cpp:3:25: error: constexpr variable 'GoldenRatio' must be initialized by a
constant expression
static constexpr double GoldenRatio = (1 + sqrt(5.0)) / 2;
^ ~~~~~~~~~~~~~~~~~~~
test.cpp:3:44: note: non-constexpr function 'sqrt' cannot be used in a constant
expression
static constexpr double GoldenRatio = (1 + sqrt(5.0)) / 2;
^
/usr/include/x86_64-linux-gnu/bits/mathcalls.h:143:13: note: declared here
__MATHCALL (sqrt,, (_Mdouble_ __x));
^
1 error generated.
$ clang++ --version
clang version 7.0.0-3 (tags/RELEASE_700/final)
Target: x86_64-pc-linux-gnu
Thread model: posix
InstalledDir: /usr/bin
Ran on Ubuntu 18.10
Preventing compilation of practicomp: https://github.com/practical/practicomp.
--
You are receiving this mail because:
You are on the CC list for the bug._______________________________________________
llvm-bugs mailing list
[email protected]
http://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-bugs
