https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68984
Bug ID: 68984
Summary: error: ‘constexpr bool std::isinf(double)’ conflicts
with a previous declaration
Product: gcc
Version: 6.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: libstdc++
Assignee: unassigned at gcc dot gnu.org
Reporter: trippels at gcc dot gnu.org
Target Milestone: ---
markus@x4 tmp % cat isinf.cpp
#include <cmath>
using std::isinf;
markus@x4 tmp % g++ -std=c++11 -c isinf.cpp
isinf.cpp:2:12: error: ‘constexpr bool std::isinf(double)’ conflicts with a
previous declaration
using std::isinf;
^~~~~
In file included from /usr/include/features.h:368:0,
from
/usr/lib/gcc/x86_64-pc-linux-gnu/6.0.0/include/g++-v6/x86_64-pc-linux-gnu/bits/os_defines.h:39,
from
/usr/lib/gcc/x86_64-pc-linux-gnu/6.0.0/include/g++-v6/x86_64-pc-linux-gnu/bits/c++config.h:493,
from
/usr/lib/gcc/x86_64-pc-linux-gnu/6.0.0/include/g++-v6/cmath:41,
from isinf.cpp:1:
/usr/include/bits/mathcalls.h:201:1: note: previous declaration ‘int
isinf(double)’
__MATHDECL_1 (int,isinf,, (_Mdouble_ __value)) __attribute__ ((__const__));
^
markus@x4 tmp % clang++ -stdlib=libc++ -std=c++11 -c isinf.cpp
markus@x4 tmp %
